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1
SK, Jose. "Building Blocks Using Foamed Concrete with Industrial Waste Materials." Open Access Journal of Waste Management & Xenobiotics 4, no. 4 (2020): 1–11. http://dx.doi.org/10.23880/oajwx-16000167.
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Clay bricks or hollow/solid concrete blocks are used as infills for reinforced concrete framed structures in the present construction scenario. There is substantial depletion of natural resources during the production of conventional bricks, which create environmental pollution due to burning of bricks. Also, for the production of hollow/solid cement concrete blocks, large quantities of cement and natural aggregates are being used. This enforces researchers to develop a more feasible, lighter and greener alternate material for infills. Foamed concrete (FC) is such an innovative and versatile material, which consists of a cement based mortar having minimum 20% of volume filled with air. The effective consumption of industrial by-products for the production of FC lead to preservation of natural resources, solving disposal issues of these wastes. FC is found to be economically viable, light in weight, durable, thermally resistive as well as environmentally sustainable. This research focuses on the feasibility of utilizing the industrial waste materials such as fly ash and GGBFS as partial substitute for cement and quarry dust as substitute for fine aggregate. The influence of these waste materials on foamed concrete and the development of properties like compressive strength, dry density, water absorption and thermal conductivity were studied.
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Cohen, Ehud, Gabriela Bar Nes, and Alva Peled. "Development of Sustainable Alternative Building Materials from Quarry Dust." Key Engineering Materials 761 (January 2018): 181–88. http://dx.doi.org/10.4028/www.scientific.net/kem.761.181.
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The main goal of our work is to develop an alternative building material based on “zero waste” objective, thus creating commercially valuable products from materials that are otherwise high-volume waste products. Fine dolomitic quarry dust is a waste product manufactured in several millions of cubic tons each year in the mining industry of Israel. Our study examines a sustainable and useful solution to use this quarry dust (QD) as a part of fly ash based geopolymeric systems. Mechanical, thermal and chemical properties were examined and analyzed.
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Fomina, Natalya, Olga Fedotova, and Mikhail Polyanskiy. "Changes in the composition and structure at PET-waste processing into building materials." MATEC Web of Conferences 251 (2018): 01002. http://dx.doi.org/10.1051/matecconf/201825101002.
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The results of studies of the composition and structure of polyethylene terephthalate in the process of thermomechanical processing of polymeric wastes as well as properties of waste products obtained on the basis of waste are presented. Methods of infrared spectroscopy, differential thermal analysis and thermogravimetry, as well as standard methods for manufacturing and testing the technical properties of samples of structural building products were used. As a result of thermomechanical processes during re-melting of polyethylene terephthalate waste, the number of hydroxyl groups in the polymer composition decreases, due to the possible cross-linking and polycondensation of macromolecules through terminal hydroxyl and unactivated carboxyl groups. In this case, conformational rearrangements take place in the structure of polyethylene terephthalate. When thermomechanical processing of secondary PET with rapid cooling of the melt, the temperature of the onset of subsequent melting decreases, which allows to reduce power consumption in melting-mixing units during the process of manufacturing construction products. Construction and technical properties of secondary PET as binder composite building materials allow to obtain potentially durable products with structural strength and high decorative.
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Lemeshev, Mikhail, Kateryna Sivak, Maksym Stadniychuk, and Roman Sivak. "PROSPECTS FOR THE USE OF MAN-MADE RAW MATERIALS IN THE PRODUCTION OF COMPOSITE BINDERS VINNYTSIA NATIONAL TECHNICAL UNIVERSITY." Modern technology, materials and design in construction 33, no. 2 (March 22, 2023): 36–45. http://dx.doi.org/10.31649/2311-1429-2022-2-36-45.
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The aggravation of the economic and environmental situation in Ukraine necessitates the development of new efficient technologies for the processing and use of industrial technogenic waste from the thermal power and chemical industries. Such technologies should ensure the maximum degree of use in the production of high-quality efficient building products. The choice of technology for the preparation, processing and use of industrial waste depends on the chemical, mineralogical, granulometric composition and method of production. Despite the fact that such wastes are used mainly as inert fillers, their overall use remains low. The share of their use in the manufacture of building products is 5-12%, at the same time, the manufacture of building products requires additional energy costs.
Many industrial and municipal wastes, which are of great practical interest, remain insufficiently demanded for various reasons. In this regard, the popularization of the likely directions for the introduction of industrial waste and the effect achieved in this case is of fundamental importance. One of the main industries for the integrated use of waste is the industry of building materials, where this raw material can act as the basis for the creation of new highly efficient materials. Predicting the properties of such materials is a rather difficult task, the solution of which can be achieved through the formation of a systematic approach to determining quality indicators, as well as predicting and regulating the properties of materials depending on the goals and objectives solved by builders and technologists in the manufacture of building products.
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Fomina, Natalya, Irina Pavlova, and Maria Kochergina. "Industrial Waste as Components of Building Materials." E3S Web of Conferences 222 (2020): 04002. http://dx.doi.org/10.1051/e3sconf/202022204002.
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The possibilities of using large-tonnage waste from the Saratov region in the production of building materials are analysed. Waste was investigated: phosphogypsum - waste from the production of mineral fertilizers; steel-making slag, limestone crushing waste, construction waste (crushed concrete). The extraction of strontium and rare-earth metals from phosphogypsum is substantiated, followed by its processing into products that solidify according to the non-hydration principle, or use in the compositions of expanding cements. The development of geopolymer binders of alkaline activation based on steel-making slags is proposed. The introduction of low water demand carbonate cements into construction practice has been substantiated. Limestone crushing waste can be used as a carbonate mineral additive. The processing of crushed concrete waste into crushed stone, coarse sands and finely dispersed additives into cement concretes is considered. Technologies for processing large-tonnage waste in the production of building materials are environmentally sound and economically justified.
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Giordano, Roberto, Elena Piera Montacchini, and Silvia Tedesco. "Building the fashion’s future: How turn textiles’ wastes into ecological building products." Strategic Design Research Journal 13, no. 2 (October 29, 2020): 284–93. http://dx.doi.org/10.4013/sdrj.2020.132.11.
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The textile system is one of the most influential production activities at a global level from an environmental point of view, both in relation to the processes that characterize the supply chain and in relation to pre and post-consumer waste. It produces million tons of global greenhouse gas emissions per year and it consumes millions of litres of water; it uses million tons of chemical products. Furthermore, millions of tons of special textile wastes are yearly landfilled in upstream process as well as in downstream process. Less of 1% of materials used to produce clothes becomes part of a closed-loop recycling and less of 2% are recycled in other industrial activities. Changing the textile industrial linear model in a circular one according to Systemic Design principles is advisable, starting from wastes and by-products. As proved in the working paper wastes, due to their properties, can assumed as inputs of new production systems. Particularly the scientific contribution deals with some research activities carried out within a project titled EDILTEX - Innovation for reusing in textile companies. The achievements are described, showing that construction and fashion are fields only apparently far from each other. They can - on the contrary - developing powerful synergies and products with interesting technological and physical performances.
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Munir, Qaisar, Sanaz Afshariantorghabeh, and Timo Kärki. "Industrial Waste Pretreatment Approach for 3D Printing of Sustainable Building Materials." Urban Science 6, no. 3 (August 1, 2022): 50. http://dx.doi.org/10.3390/urbansci6030050.
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The large volume of industrial by-products and wastes from the construction, timber and paper industries has become a serious challenge worldwide. Recycling these industrial wastes as functional materials in the construction industry is an efficient approach for sustainable development. This study presents a pretreatment approach for recycling construction and demolition waste (CDW) and industrial side-streams (such as green liquor sludge, fiber waste, flotation sand and fly ash) in order to produce a geopolymer for the 3D printing of construction materials. A treatment approach was developed for screening the residues from CDW with a maximum size of 16 mm and for a combined line treatment for industrial side streams. The treatment processes utilized suitable and economical separation techniques for the recycling of waste materials. The crushing of the screened residues resulted in a homogeneous material size that facilitates the separation of mixed wastes and simplifies the classification of materials. The combined plant enabled the cost-effective treatment of various industrial wastes in a single process unit. The results show that the economic and environmental impact of the chosen techniques, in terms of their energy consumption, is highly dependent on the treatment line, separation technique and quantity of the individual waste that is processed. These recycled industrial wastes can be used as sustainable materials for the production of geopolymer concrete, contributing to the sustainability of the construction industry.
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Samir, Mourad, Faruz Alama, Paul Buysse, Tomas van Nylen, and Oleg Ostanin. "Disposal of Mining Waste: Classification and International Recycling Experience." E3S Web of Conferences 41 (2018): 02012. http://dx.doi.org/10.1051/e3sconf/20184102012.
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The main directions of mining and industrial wastes’ utilization are the production of building materials, their use in the construction industry without additional processing, and also the production of metals from metal-containing raw materials. It should be noted that current waste is preferable for the production of building materials, since they preserve the primary physical and mechanical properties and chemical composition and, moreover, can reach the consumer bypassing all other steps that are mandatory for waste consolidated (transportation, storage, etc.). For the production of building materials, not less than 30% of overburden and refinement tailings are suitable, almost all metallurgical and fuel slags, waste products of fertilizers and building materials. Even larger amounts of waste can be used for various laying and burial works (construction of road bases and dams, filling of worked out areas, leveling of the relief).
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ChUMAChENKO, N. G. "RESOURCE SAVING APPROACH TO RAW MATERIAL BASE OF BUILDING INDUSTRY." Urban construction and architecture 1, no. 1 (February 15, 2011): 112–16. http://dx.doi.org/10.17673/vestnik.2011.01.22.
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An estimate of natural and technogenic raw material bases for construction materials production is given. These two groups of primary products are suggested to be considered as a united raw material base for building industry due to including industrial wastes. To be selected for an appropriate use every industrial waste sort must undergo several levels of estimation on the following criteria: toxic level; chemical and mineral composition; selection of wastes from ready-made construction materials or their components; selection of wastes from ready-made raw mixes for the production of building materials; estimation of aggregate state; estimation of the amount of formation. After such a multilevel estimation, waste is getting a certain status.
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Aryngazin, Kapar Sh, Alexey V. Bogomolov, and Askar K. Tleulessov. "Innovational Construction Materials of LLP “EcostroyNII-PV” Production." Defect and Diffusion Forum 410 (August 17, 2021): 806–11. http://dx.doi.org/10.4028/www.scientific.net/ddf.410.806.
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The article discusses the experience of recycling industrial waste from the electric power industry and metallurgy. Based on the experience of Ecostroy NII-PV LLP. The proposed technology for manufacturing building products from ash and slag waste provides innovative compositions of raw mixtures. What provides an increase in operational characteristics and labor productivity in construction. The applied technology, in comparison with the existing analogues, provides for the use of local waste (ash and slag waste from the combustion of Ekibastuz coal, bauxite sludge from the Pavlodar aluminum plant, steel-making slags), differing in chemical and granulometric composition. as well as binding properties from other analogs and prototypes. In the manufacture of building products introduced mixture, including, wt %: slag Portland cement - 14.32-17.00; sand - 18.74-25.52, crushed stone - 46.50-49.71, sludge from alumina production obtained during the recycling of bauxite from Kazakhstan - 5-7; self-disintegrating steelmaking slag - 5-7; ash and slag waste from thermal power plants from burning Ekibastuz coals - 5-7. According to the test results, the average tensile strength of building products (paving slabs, curbs, hollow bricks) is 3.2 - 3.8 MPa (strength class V2.5).
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Iringová, Agnes. "The use of recycled waste products in a sustainable house design - a case study." MATEC Web of Conferences 196 (2018): 04051. http://dx.doi.org/10.1051/matecconf/201819604051.
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The current state of waste production and management in Slovakia. Legislative regulations. Analysis of applying recycled waste products in the construction of sustainable buildings as a substitution of non-renewable materials. The comparison of the physical parameters of recycled materials with non-renewable materials in terms of thermal and fire protection. The construction solution of lightweight building envelopes with a timber supporting system using the thermal insulation and facing made of recycled materials. The model solution of a wood-based family house using recycled waste materials. The comparison of the environmental burden of a standard lightweight sandwich peripheral wall with a recycled waste wall.
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LJUBOMIRSKIJ, N. V., A. S. BAHTIN, T. A. BAHTINA, V. V. NIKOLAENKO, and G. R. BILENKO. "Metallurgical Waste as a Raw Material Reserve for Achieving Carbon Neutrality of the Construction Industry. Part 1. Ability of Metallurgical Waste to Bind CO2." Stroitel'nye Materialy 819, no. 11 (November 2023): 80–94. http://dx.doi.org/10.31659/0585-430x-2023-819-11-80-94.
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The solution to global environmental problems is to reduce the anthropogenic impact on the environment through the utilization of carbon dioxide emissions and the use of industrial waste to produce new materials and products. Technogenic wastes of the metallurgical industry are considered as raw materials for the production of building materials and products with the ability to bind gaseous CO2. The analysis and selection of waste from metallurgical enterprises located in the Central and North-Western Federal Districts of the Russian Federation is carried out. The results of studies of environmental friendliness, chemical, material and phase-mineralogical compositions of technogenic metallurgy waste, their hydration activity and ability to bind carbon dioxide are presented. It is shown that the most promising raw materials for the production of building materials and products are steelmaking slags and nepheline sludge from the processing of alumina raw materials. The greatest ability to absorb and bind CO2 is distinguished by nepheline sludge (up to 12% CO2 by weight of sludge), steelmaking (converter and electric steelmaking) slags (up to 8.8 and 9.2% CO2 by weight of slag, respectively). The compressive strength of the prototypes on these types of slags depends on the degree of their carbonation and reaches values of 100 MPa or more after 6 hours of forced carbonation. It is concluded that the material obtained from man-made metallurgical waste by carbonation hardening technology can be used as a matrix substance for various building materials and products.
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Majumder, Arnas, Laura Canale, Costantino Carlo Mastino, Antonio Pacitto, Andrea Frattolillo, and Marco Dell’Isola. "Thermal Characterization of Recycled Materials for Building Insulation." Energies 14, no. 12 (June 15, 2021): 3564. http://dx.doi.org/10.3390/en14123564.
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The building sector is known to have a significant environmental impact, considering that it is the largest contributor to global greenhouse gas emissions of around 36% and is also responsible for about 40% of global energy consumption. Of this, about 50% takes place during the building operational phase, while around 10–20% is consumed in materials manufacturing, transport and building construction, maintenance, and demolition. Increasing the necessity of reducing the environmental impact of buildings has led to enhancing not only the thermal performances of building materials, but also the environmental sustainability of their production chains and waste prevention. As a consequence, novel thermo-insulating building materials or products have been developed by using both locally produced natural and waste/recycled materials that are able to provide good thermal performances while also having a lower environmental impact. In this context, the aim of this work is to provide a detailed analysis for the thermal characterization of recycled materials for building insulation. To this end, the thermal behavior of different materials representing industrial residual or wastes collected or recycled using Sardinian zero-km locally available raw materials was investigated, namely: (1) plasters with recycled materials; (2) plasters with natural fibers; and (3) building insulation materials with natural fibers. Results indicate that the investigated materials were able to improve not only the energy performances but also the environmental comfort in both new and in existing buildings. In particular, plasters and mortars with recycled materials and with natural fibers showed, respectively, values of thermal conductivity (at 20 °C) lower than 0.475 and 0.272 W/(m⋅K), while that of building materials with natural fibers was always lower than 0.162 W/(m⋅K) with lower values for compounds with recycled materials (0.107 W/(m⋅K)). Further developments are underway to analyze the mechanical properties of these materials.
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Mitrofanov, N. G., and A. Yu Sushilova. "Environmental assessment of road construction materials and technologies with the use of production wastes." E3S Web of Conferences 265 (2021): 04007. http://dx.doi.org/10.1051/e3sconf/202126504007.
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The following paper presents some results of long-term research on the urgent problem of recycling waste products and their use in road construction. The studied new materials and technologies are justified by the developments of Tyumen Industrial University. The aim of this work is to prove the technique, checking the ecological safety of the road materials with the use of waste products. Research techniques and test subjects are quantitative chemical analysis and biological testing of road material samples with waste additives obtained during drilling and oil production. Along with the standard procedures for analyzing the contamination and toxicity of water extracts, the authors have proposed and tested the evaluation of repeated and long-term extractions, imitating the possible environmental impact of waste products. The obtained results showed the environmental safety of the road-building materials based on wastes.
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Khrystych, Oleksandr, and Leonid Nesen. "FILLERS FOR CONSTRUCTION MIXTURES FROM RECYCLING PRODUCTS OF SOLID INORGANIC WASTE." Modern technology, materials and design in construction 33, no. 2 (March 22, 2023): 19–24. http://dx.doi.org/10.31649/2311-1429-2022-2-19-24.
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The substantiation of the need to develop and implement new resource-saving technologies for the production of construction mixtures using aggregates obtained as a result of complex processing of solid inorganic construction waste is provided. Analytical studies of technogenic waste processing technologies for obtaining building materials have been conducted. The results of the study of the experience of construction scrap processing are presented, with confirmation of the expediency of the fact that the technology of recycling accumulated construction scrap dumps in the territory where the destroyed buildings were located does not require any new specialized measures. The projected volumes of building materials in the composition of residential construction objects with various quantitative parameters of the constituent components of the elements of the fencing structures are presented. Analytical studies have established that the accumulated volumes of construction scrap from the destruction of elements of buildings and structures in the vast majority include the remains of concrete, reinforced concrete, expanded clay concrete, brickwork made of ceramic and silicate products. Experimental series of aggregate samples were made using experimental samples of construction scrap, their granulometric characteristics were determined and physical parameters were investigated. With the use of regulatory and technical literature, the predicted prescription parameters of the concrete mixture using a new variety of aggregates obtained by re-processing of construction scrap were compiled. The presence of reactive substances on the surface of the obtained aggregates was substantiated and the presence of increased physical and mechanical characteristics of the samples with a decrease in the binder content was confirmed. Recipe and technological parameters for the production of wall building materials using the obtained multicomponent building mixtures are proposed. The results of tests of physical and mechanical characteristics of test samples of concrete using aggregates from solid inorganic waste are presented.
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Khrystych, Oleksandr V. "FILLERS FOR CONSTRUCTION MIXTURES FROM RECYCLING PRODUCTS OF SOLID INORGANIC WASTE." Modern technology, materials and design in construction 35, no. 2 (December 29, 2023): 49–55. http://dx.doi.org/10.31649/2311-1429-2023-2-49-55.
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The substantiation of the need to develop and implement new resource-saving technologies for the production of construction mixtures using aggregates obtained as a result of complex processing of solid inorganic construction waste is provided. Analytical studies of technogenic waste processing technologies for obtaining building materials have been conducted. The results of the study of the experience of construction scrap processing are presented, with confirmation of the expediency of the fact that the technology of recycling accumulated construction scrap dumps in the territory where the destroyed buildings were located does not require any new specialized measures. The projected volumes of building materials in the composition of residential construction objects with various quantitative parameters of the constituent components of the elements of the fencing structures are presented. Analytical studies have established that the accumulated volumes of construction scrap from the destruction of elements of buildings and structures in the vast majority include the remains of concrete, reinforced concrete, expanded clay concrete, brickwork made of ceramic and silicate products. Experimental series of aggregate samples were made using experimental samples of construction scrap, their granulometric characteristics were determined and physical parameters were investigated. With the use of regulatory and technical literature, the predicted prescription parameters of the concrete mixture using a new variety of aggregates obtained by re-processing of construction scrap were compiled. The presence of reactive substances on the surface of the obtained aggregates was substantiated and the presence of increased physical and mechanical characteristics of the samples with a decrease in the binder content was confirmed. Recipe and technological parameters for the production of wall building materials using the obtained multicomponent building mixtures are proposed. The results of tests of physical and mechanical characteristics of test samples of concrete using aggregates from solid inorganic waste are presented.
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Tolmacheva, N. A., A. V. Kochneva, E. V. Zelinskaya, and A. S. Shatrova. "Solid Waste Heat Power Engineering and Colloidal Sludge-Lignin Precipitation for Building Materials." Ecology and Industry of Russia 22, no. 12 (December 4, 2018): 28–32. http://dx.doi.org/10.18412/1816-0395-2018-12-28-32.
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The large-tonnage wastes utilization technologies as mineral fillers for the composite building materials production were investigated. Based on the correlation between the materials properties and the types and composition of wastes, it was found that the mineral fillers addition in the composition improves the physicomechanical characteristics of the materials obtained. With materials obtained on the waste basis and with the use of various polymers, a studies complex was carried out to determine their characteristics. Established a regulatory indicators characteristic significant excess of these types of products.
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Flores Badillo, Javier, Juan Hernández Ávila, Francisco Patiño Cardona, Norma Yacelit Trápala Pineda, and José Abacú Ostos Santos. "Developing Alternative Building Materials from Mining Waste." Advanced Materials Research 976 (June 2014): 202–6. http://dx.doi.org/10.4028/www.scientific.net/amr.976.202.
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In this paper we present the production of alternative industrial materials from the mining waste in the form of tailings, this study was made with the tailings of Dos Carlos, establishing 4 sampling zones, dividing them into three strata in the bottom, middle and top. The sampling method used is quartering, to homogenize the material and anticipate the possible use of it as a building material, having for this purpose 12 ceramic mixtures for subsequent treatment. Chemical composition was determined as 70.43% SiO2, 7.032% Al2O3, 2.69% Fe2O3, 0.46% MnO2, 3.98% K2O, 3.34% CaO, 2.50% Na2O, 56 grams per tonne of Ag y 0.6 grams per tonne of Au. In the mineralogical characterization the tailings presents silica, albite, berlinite, orthoclase and potassium jarosite as the main mineral phases, among other mineral phases in lesser concentration such as gypsum, calcite, anorthoclase, pyrite, sphalerite and galena. The determinations of the tailing material granulometry in the range of 60% in a size less than 270 mesh (53 μm). Afterwards, the alternative industrial materials were produced by using the tailings and heavy clay in order to give the composite a good green strength and plasticity during development, but above all to give it a compressive strength similar or higher than that of products derived from conventional processes. Keywords: Tailings, green strength, compressive strength, plasticity, heavy clays, alternative industrial materials.
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Abramov, Ruslan Aharonovich, Maksim Sergeevich Sokolov, and Svetlana Vyacheslavovna Derevianko. "Research of Properties of Modern Construction Materials Based on Industrial Waste, Waste Wood and Metallurgical Industries." Key Engineering Materials 802 (May 2019): 113–24. http://dx.doi.org/10.4028/www.scientific.net/kem.802.113.
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Material consumption of production of building materials is determined by the amount of raw materials used for their production, to the total output. One of the ways to reduce material consumption is the use of industrial waste as the main raw material for the production of new construction products. Most of the waste generated as a result of the activities of enterprises are man-made raw materials for the production of products such as brick, lime, cement, etc.Given that man-made raw materials are similar to the natural composition and physical properties and even has a number of advantages (heat treatment, increased dispersion, etc.), the manufacture of building materials from it is usually profitable and justified [4, 5].
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Yadava, Shalini, B. Chakradharb, and Anil Sharmac. "Recycling Process for the Management of E-Waste from Colour Picture Tubes of TV in Manufacturing Building Materials." Advanced Materials Research 341-342 (September 2011): 859–67. http://dx.doi.org/10.4028/www.scientific.net/amr.341-342.859.
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E-waste released from Television colour picture tube manufacturing process is hazardous in nature and its worldwide disposal has become major concern to safe guard the environment and ecology. The solid wastes generated from the picture tube manufacturing process contain significant quantity of compounds of lead, nickel, cobolt, iron etc. The presence of toxic substances and their characteristic nature made these wastes hazardous and pose serious problems in their disposal resulting in major environmental concerns. In the present study an attempt has been made to develop a new cost effective process for immobilizing and recycling e-waste released from electronic industry in developing non-hazardous building material using additives and binders. Detoxification /immobilization of e-waste was achieved in making composite products using cement and sand as additives through solidification/stabilization process. Further strength and stability of solidified composite products was achieved through curing process. The quality and suitability of the S/S cured composite products were tested and assessed for their Engineering properties (compressive strength, water absorption, density), Toxicity leachate characteristics, Mineralogical studies, Morphological studies for their use in engineering applications, application as construction materials like bricks, blocks, aggregates and confirmed their environmental significance.
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Skanavi, Natalia, and Timofei Dovydenko. "Effects of waterjet cutting waste addition on properties of building ceramics." MATEC Web of Conferences 196 (2018): 04057. http://dx.doi.org/10.1051/matecconf/201819604057.
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The purpose of the paper is to investigate the possibility of using wastes of waterjet metal cutting in the manufacture of building ceramics. A complex study of the composition and properties of the abrasive and hydroabrasive cutting wastes was carried out. The behavior of waste in the composition of the ceramic mass and the ceramic body was investigated. Positive results of the effect of addition of waste on the properties of ceramics were obtained on two types of polymineralic argillaceous raw materials: increase of strength at the optimum content of waste in the mixture, reduction of air and fire shrinkage in all compositions with waste content, possibility of varying the color of products, etc. The similarity of the chemical composition of argillaceous raw materials and wastes was established: oxides of iron, silicon and aluminum are predominant. Electron microscope research has demonstrated that the introduction of waste modifies the structure of the ceramic shard, but does not affect its uniformity. The obtained results allowed to draw conclusions about the possible use of wastes of waterjet metal cutting in the production of ceramics: as a fluxing agent – flux, component for volumetric staining, thinning agent.
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Chen, Ri Gao, Yan Yao, and Ling Wang. "Research on Mechanical Properties of Molded Products Using Building Waste." Advanced Materials Research 250-253 (May 2011): 2024–31. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.2024.
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Recycle utilization of building waste is the tendency of building material for environment protection & sustainable development. Mechanical properties of molded products using building waste (MPBW) were investigated. The main parameters are focus on molded pressure, dosage of building waste added into cement and fly ash. The results of experiments showed that molded products using concretes debris as fine aggregates have stronger mechanical properties. The strength of product increased along with molding pressure increase under 15MPa , but it was almost no increase when the molding pressure was up from 15MPa to 20MPa.The addition of building waste has little effect on the compressive strength of product when its dosage range from 50% to 100% .The strength of product had obviously changed after using fly ash partially substitute for cement, when fly ash replace two thirds cement, the product strength of 28d was 15.4MPa, and was still higher than that of the normal wall materials. Later strength of the product had markedly increased, its 180d compressive strength achieved 25.2MPa. Test results confirmed: using building waste, panel, block and other products with better mechanical properties could be manufactured by adjusting the molded pressure and the dosage of building waste and fly ash.
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Manakova, Nadezhda K., and Olga V. Suvorova. "INORGANIC THERMOPENOSILICATE VITREOUS MATERIALS BASED ON MINERAL TECHNOGENIC RAW MATERIALS OF THE KOLA PENINSULA." Transactions of the Kоla Science Centre of RAS. Series: Engineering Sciences 14, no. 4/2023 (April 19, 2023): 181–87. http://dx.doi.org/10.37614/2949-1215.2023.14.4.031.
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The article considers the possibility of creating new inorganic foamed materials based on liquid-glass binder, silica-containing raw materials and mineral fillers, including mining waste, glass and ash waste. The authors of the article proposed compositions and conditions for obtaining materials that meet the regulatory requirements for materials and products for building thermal insulation.
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Wang, Jiyu, Kai Zheng, Na Cui, Xin Cheng, Kai Ren, Pengkun Hou, Lichao Feng, Zonghui Zhou, and Ning Xie. "Green and Durable Lightweight Aggregate Concrete: The Role of Waste and Recycled Materials." Materials 13, no. 13 (July 7, 2020): 3041. http://dx.doi.org/10.3390/ma13133041.
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Lightweight aggregate concrete manufactured by solid waste or recycled by-products is a burgeoning topic in construction and building materials. It has significant merits in mitigating the negative impact on the environment during the manufacturing of Portland cement and reduces the consumption of natural resources. In this review article, the agricultural and industrial wastes and by-products, which were used as cementitious materials and artificial lightweight aggregate concrete, are summarized. Besides, the mechanical properties, durability, and a few advanced microstructure characterization methods were reviewed as well. This review also provides a look to the future research trends that may help address the challenges or further enhance the environmental benefits of lightweight aggregate concrete manufactured with solid waste and recycled by-products.
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Dino, Giovanna Antonella, Alessandro Cavallo, Piergiorgio Rossetti, Ernő Garamvölgyi, Renáta Sándor, and Frederic Coulon. "Towards Sustainable Mining: Exploiting Raw Materials from Extractive Waste Facilities." Sustainability 12, no. 6 (March 18, 2020): 2383. http://dx.doi.org/10.3390/su12062383.
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The focus of the present research is on the exploitation of extractive waste to recover raw materials, considering the technological and economic factors, together with the environmental impacts, associated with extractive waste quarrying and dressing activities. The present study, based on a case history from Northern Italy (Montorfano and Baveno granite quarrying area), was intended to validate the presented interdisciplinary approach for evaluating economic and environmental impacts associated with extractive waste facility exploitation (from granite waste to products for the ceramic industry and by-products for the building industry). A shared methodology was applied to determine extractive waste characteristics (geochemistry, petrography, and mineralogy), waste volume (geophysical, topographic, and morphologic 3D characterization) and potential exploitable products and by-products. Meanwhile, a Life Cycle Assessment (LCA) was applied to determine the environmental impacts associated with the extraction and processing phases.
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Chafale, Reshama V. "Waste Management of Construction and Demolition Materials Towards Sustainable Growth of Nagpur City." International Scientific Journal of Engineering and Management 03, no. 05 (May 25, 2024): 1–9. http://dx.doi.org/10.55041/isjem01947.
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The higher amount of buildings and infrastructures in India, number of construction and demolition (C&D) waste is increasing continuously. These wastes, if not completely recycled, will create the environmental problems. This research paper concentrates on the use of a system dynamics technique to develop a C&D waste recycling. The project is based on the recycling of the rapidly increasing construction and demolition waste. Through this process we want to take a step ahead, the idea of stopping illegal Dumping and ultimately save our mother Earth from destruction. The cost of recycled C&D solid waste resulting in reduction of overall construction cost. The demolition is the most commonly pronounced word in the construction industry. As per the new building rules building should be demolished after its service period. Now-a-days the importance is given to sustainable and environmental friendly construction; there should be effective control of the demolition waste. The demolition waste can be reused for the construction. Construction and demolition (C and D) waste is defined as the solid waste generated by the construction, renovation, repair, alteration or demolition of residential, commercial, government or institutional buildings, industrial, commercial facilities and infrastructures such as roads, bridges, dams, tunnels, railways and airports. Construction and demolition waste is considered as high volume, low risk. It is commonly understood that this waste can be considered a resource, either for reuse in its original form or for recycling or energy recovery. Because of increasing waste production and public concerns about the environment, it is desirable to recycle materials from building demolition. If suitably selected ground cleaned appropriate industrial crushing in plants, these materials can be profitably used in concrete. Despite this, most Construction and Demolition waste ends up in landfills recycled aggregate and recycled sand that can be obtained. Further with the help of the obtained recycled material we intend to make various products such as concrete, paver blocks, hollow blocks, etc which will in turn be less costly as well. These recycled materials and products made from it are economical without any considerable change in the strength and durability aspect. Not only the cost effectiveness but it will also be aesthetically pleasing. According to Metropolitan region development authority the amount of construction and demolition waste (C&D waste) must be reduced by at least 70%. 3Rs model (Reduce, Reuse and Recycle) in the C&D waste management with costs savings. This paper finds a broader understanding of the socioeconomic implications of waste management over time and the positive effects of these policies in the recycled to achieve the goal of C&D waste as well as the composition of Construction and Demolition waste, the need for its recycling and options that can be implemented for its efficient use in the field of concrete technology. Key Words: C & D waste; sustainable construction systems, Recycling, Concrete.
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Dvorkin, Leonid, and Oleh Bordiuzhenko. "Binders for pressed products based on phosphogypsum waste." Zastita materijala 63, no. 4 (2022): 437–46. http://dx.doi.org/10.5937/zasmat2204437d.
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The article is devoted to the issues of obtaining pressed building materials based on dihydrate phosphogypsum. Dihydrate phosphogypsum after mechanical activation in a ball mill acquires the ability to harden in pressed specimens. After activation of dihydrate phosphogypsum in a ball mill and its pressing at a pressure of 30 MPa, the strength of specimens increases by 6...8 times compared to non-activated specimens and reaches 25...30 MPa. There is found the influence of various chemical admixtures on binding properties of activated phosphogypsum and there are shown possibilities of water resistance improvement and increasing of other properties characterizing this material. There is studied an effect of aggregates on the building and technical properties of artificial stone made of phosphogypsum and peculiarities of its structure and change under the influence of different factors.
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Lemeshev, M., K. Sivak, and M. Stadniychuk. "FEATURES OF USE OF INDUSTRIAL TECHNOGENIC WASTE IN THE FIELD OF BUILDING MATERIALS." Modern technology, materials and design in construction 29, no. 2 (2021): 24–34. http://dx.doi.org/10.31649/2311-1429-2020-2-24-34.
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Another aggravation of the ecological and economic situation in Ukraine makes it necessary to develop new efficient technologies for processing and use of industrial man-made waste from the heat and chemical industries. Such technologies should ensure their maximum degree of use in the production of high-quality efficient construction products. The choice of technology for the preparation, processing and use of industrial waste depends on such factors as their chemical-mineralogical and particle size distribution and method of production. Although such wastes are mostly used as aggregates, their overall use remains low. The share of their use in the manufacture of construction products is 5-12%, and the manufacture of products requires additional energy consumption. The paper considers the possibility of using industrial waste not only due to their activation, but also due to the use of their multifunctional properties. When the inactivated ash is introduced into the concrete mixture, it increases the plasticity of such a mixture and at the same time the microfiller promotes the formation of a stronger contact zone by increasing the degree of crystal chemical similarity of tumors. Excessive amounts of ash in ash-containing materials lead to increased porosity and reduced rate of accumulation of strength over time, which impairs performance, including frost and corrosion resistance. Large-scale use of phosphogypsum is hindered by its specific features: physical state, high humidity, the presence of phosphoric and sulfuric acid and water-soluble harmful compounds of phosphorus and fluorine. Therefore, before using phosphogypsum, it is necessary to remove or neutralize harmful impurities and reduce the concentration of acid residues. Harmful impurities can be bound and acid residues can be neutralized by adding quicklime to the solution. Lime simultaneously neutralizes acids and binds water-soluble harmful impurities. The most effective method of using phosphogypsum, fly ash and fine powders of steel sludge SHH-15 is the integrated use of such waste, resulting in a complex metal-ash-phosphate binder (MАРВ).
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Leber, Pavel, René Čechmánek, Petr Bibora, Ivana Chromková, and Martin Vyvážil. "Utilization of Materials from the Production of Mineral Wool into Construction Materials." Advanced Materials Research 1000 (August 2014): 178–81. http://dx.doi.org/10.4028/www.scientific.net/amr.1000.178.
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This paper describes research on utilization of solid waste materials from mineral wool production. Aim of this research is verification of most suitable way of separated waste material utilization in building materials and determination of its maximal amount without negative effect on physical-mechanical and ecological characteristics of a final product. The research was focused on self-leveling mixtures, thin-walled glass fibre reinforced concrete products and vibropressed thin-walled shaped concrete blocks.
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Bruyako, Mihail Gerasimovich, and L. Grigoryeva. "Building Ecomaterials Based on Secondary Raw Material." Solid State Phenomena 284 (October 2018): 916–21. http://dx.doi.org/10.4028/www.scientific.net/ssp.284.916.
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Mineral raw natural resources are not unlimited. Preservation of such non-renewable resources is the most urgent task of mankind. The development of non-waste technologies, the integrated use of secondary raw materials, which simultaneously reduces environmental damage - one of the ways to solve environmental problems. Utilization of wastes makes it possible to solve issues of environmental protection as well as resource saving. In the light of environmental requirements, building materials based on recycled materials, including cellulose-containing solid waste, have significant advantages over other traditional materials. Development of technology for obtaining new effective environmentally safe composite highly filled materials based on cellulose-containing solid household waste for the production of construction products is a rational link in solving the general problem of improving the environmental situation. In the article there are three main ways of combining gypsum binder with cellulose-containing solid household waste. Investigations were carried out on the effect of changing the ratio of cardboard / gypsum binder, specific pressing pressure, sequence of combination of components on the properties of the final product. The strength of the material was determined from the values of the flexural strength, the compression to complete destruction of the sample, and at 10% deformation. Studies have been carried out to increase moisture resistance. The results showed that the most optimal way of combining is the 2 way. The increase in moisture resistance is significantly enhanced by the action of organosilicon hydrophobisers.
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Jerónimo, Alexandre, Mariana Fernandes, and Ana Briga-Sá. "Experimental Study on the Potential Utilization of Olive Oil Production Wastes and By-Products as Building Materials." Sustainability 16, no. 4 (February 6, 2024): 1355. http://dx.doi.org/10.3390/su16041355.
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The construction industry is one of the sectors with the greatest environmental impact resulting from the high consumption of resources and the huge amount of waste generated. In addition, different wastes and by-products originate from various sectors of activity, namely the ones related to the agricultural sector, requiring the urgent actions of recycling and reuse. In this context, this investigation focused on the valorization of wastes and by-products resulting from the olive oil production as building material components. Wet bagasse was added to cementitious mixtures at percentages of 5% and 20% to produce solid blocks. Lime mortars, incorporating 2% and 8% of ash, were developed, and particleboards composed of 83% olive stone were also produced. The results showed that blocks with 5% waste complied with the standard requirements for flexural strength. The incorporation of 2% ash increased the mechanical properties of lime mortars when compared to a reference mortar with no ash. The developed particleboards revealed the possibility for being part of a multilayer solution or as a covering material, presenting a thermal conductivity of 0.08 W/mK. Thus, wastes generated during olive oil production presented potential for valorization as building material components for non-structural purposes.
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Berseneva, Maria L., Galina V. Vasilovskaya, Nadezhda Y. Klindukh, Irina I. Terekhova, and Elena Yu Gumennaya. "Metallurgical Waste in Construction Industry." Key Engineering Materials 839 (April 2020): 155–59. http://dx.doi.org/10.4028/www.scientific.net/kem.839.155.
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The paper discusses a negative effect of metallurgical waste on the ecosystem, costs and benefits of a potential use of solid metallurgical waste products in production of building materials with the purpose to reduce their harmful effect on the environment and preserve nonrenewable natural resources. The most usable products a component of which is metallurgical waste, such as slag concrete and blocks, as well as break stone are compared with products made of natural raw materials. The most appropriate application fields with the minimal harm to human health and nature are recommended.
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Urbánková, Kristýna, Ilona Kukletová, and Hana Štegnerová. "Ecological Suitability Evaluation of Composites with a Defined Waste Content." Advanced Materials Research 1000 (August 2014): 294–97. http://dx.doi.org/10.4028/www.scientific.net/amr.1000.294.
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Economic and environmental dealing with waste requires development of new technologies for their usage. An incorporation of industrial waste material in construction materials and products is one of the options how to reduce raw materials cost and save natural sources of raw materials. In case of wastes utilization as a component of building materials, it is necessary to know their technological and ecological suitability. This study deals with some ecotoxicological and analytical methods for evaluation of ecological availability of composites with defined content of waste. These methods describe impact of the substances on the environment and living organisms.
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Schuur, H. M. L. "Calcium Silicate Products with Crushed Building and Demolition Waste." Journal of Materials in Civil Engineering 12, no. 4 (November 2000): 282–87. http://dx.doi.org/10.1061/(asce)0899-1561(2000)12:4(282).
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V. V. Tytok. "Construction of affordable housing using local building materials." Ways to Improve Construction Efficiency, no. 45 (October 16, 2020): 154–65. http://dx.doi.org/10.32347/2707-501x.2020.45.154-165.
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Trends in housing development should be based on the geographical location and climatic conditions of the region, national characteristics and culture, natural resources, transport links, density and living standards. Construction significantly affects the socio-economic development of the region. In this regard, increasing the sustainability of the regional construction complex, which is based on the building materials industry and the construction industry is a relevant and promising area of research.Demand in the building materials market continues to stimulate increased interest in the development of new types of efficient and inexpensive building materials. Since construction is one of the most material-intensive sectors of the economy, which consumes a large number of construction materials and products, various measures are taken to reduce their cost.In this regard, recently in the construction seek to make greater use of local building materials. This allows you to unload transport from long-distance transportation and significantly reduces the cost of construction. However, the building materials industry cannot develop by focusing only on natural sources of raw materials, as the costs of their extraction and processing are constantly growing. The use of man-made waste provides production with a rich source of cheap and often already prepared raw materials, which reduces the cost of manufacturing building materials.One of the promising areas in the construction of affordable housing is the maximum use of building materials and products that can be obtained from local raw materials and industrial waste. As local building materials are offered: clay, sand, soil, straw, reeds, flax. The use of industrial waste solves both environmental, fuel and energy problems and expands the raw material base of building materials.
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Kavyateja, Bode Venkata, and Panga Narasimha Reddy. "Effect of Industrial Waste on Strength Properties of Concrete." Annales de Chimie - Science des Matériaux 44, no. 5 (October 31, 2020): 353–58. http://dx.doi.org/10.18280/acsm.440508.
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Industrial wastes generally pumped into water bodies and soil that would pollute the atmosphere. As a control measure, industrial wastes products utilized as waste building materials. In the present research, waste products from various industries like illuminate sludge and glass bottle powder used in different dosages as a replacement for fine aggregate and metakaolin used as a cement replacement. Split tensile strength and compressive strength of the concrete samples examined for M30 grade. Fine aggregate is substituted by glass bottle powder (i.e. 10 to 40%) and illuminate sludge (i.e. 10 to 30%). Metakaolin substituted for cement replacement (i.e. 4 to 12%). Glass bottle does not pollute the atmosphere, but the disposal of waste glass results wastage of land. Thereby glass bottle powder can be utilized as a cement replacement in the construction industry. Then the metakaolin and illuminate sludge are the waste products from the titanium product. The experiment performed to assess the strength properties by incorporating various industrial wastes in different dosages. Physical tests of all three products have carried out according to the code requirements. Three specimens have been tested for each industrial waste products ratio to examine the tensile and compressive strength of concrete at 7th day, 14th day and 28th day and eventually to cure to achieve the optimum strength of concrete. Addition of these industrial wastes into the concrete showed an outstanding improvement in modulus of rupture, split tensile strength and compressive strength at an early and later ages.
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Aryngazin, Kapar, and Assem Abisheva. "Use of recycled waste in the production of building materials." Technobius 2, no. 2 (June 30, 2022): 0020. http://dx.doi.org/10.54355/tbus/2.2.2022.0020.
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With the development of modern society, technological progress does not stand still. Mankind is constantly in search of new ideas and ways of implementation. This article of the authors is part of the modernization of the existing system of production of building materials. The authors propose to use secondary raw materials for the manufacture of a standard product, confirm them with laboratory tests and results. The indicators of the modified concrete mixture with the addition of ash-and-slag waste from the local industrial sector gave a density not inferior to the heavy concrete of 1.8 g/cm3. Positive effect is obtained by using hydraulic press, where at equal ratio of components due to pressing, all samples were transferred to a number of heavy concretes with a density of 1.8 to 2.5 g/cm3. Moreover, it was found that there are reserves of cement saving in the application of ash in the case of samples prepared by means of hydraulic press, as well as to correct the composition of concrete it is required to carry out a full-scale experiment with the joint action of vibration and pressing. Strength tests of samples show that there is an optimum quantity of ash and slag in the formulation, at that not only the standard requirements for the quality of construction products are met, but also exceeds some characteristics of products according to the requirements of standards.
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Bezerra, Augusto Cesar da Silva, Sâmara França, Luciano Fernandes de Magalhães, and Maria Cristina Ramos de Carvalho. "Alkaline activation of high-calcium ash and iron ore tailings and their recycling potential in building materials." Ambiente Construído 19, no. 3 (September 2019): 99–112. http://dx.doi.org/10.1590/s1678-86212019000300327.
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Abstract Alkali-activated materials are agglomerates obtained from the alkaline activation of aluminum- and silicone-rich precursors. The most popular precursors for this type of activation are low-calcium fly ashes, blast furnace slag, and metakaolin. However, both high-calcium ashes (HCAs) and iron ore tailings (IOTs) are interesting wastes that can be investigated as precursors because of their available volume and environmental impact during their final deposition. Therefore, by performing tests of compressive strength, FTIR spectrometry and scanning electron microscopy, we sought to identify the products formed during HCA and IOT activation without thermal treatment. Nine mortar formulations with different HCA and IOT proportions were developed using sodium hydroxide and sodium silicate as activators. Thus, using FTIR spectrometry, we observed the reaction between the industrial wastes. Additionally, the compressive strength result suggested that the material could be used as compressed blocks in masonry walls for the development of more environmentally friendly building materials, which would mitigate the impact of waste disposal and convert industrial solid waste into value-added products.
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Jaafar, Ahmed Sadeq, Zena K. Abbas, and Abbas A. Allawi. "Studying Sustainable Concrete Block Efficiency Production: A Review." Journal of Engineering 29, no. 09 (September 1, 2023): 134–49. http://dx.doi.org/10.31026/j.eng.2023.09.10.
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Worldwide, enormous amounts of waste cause major environmental issues, including scrap tires and plastic, and large waste, a consequence of the demolition of buildings, including crushed concrete, crushed clay bricks, and crushed thermo-stone. From that point, it’s possible to consider that the recycling processes for these materials and using them in the manufacturing field will reduce the adverse effects on the environment of these wastes and the consumption of natural resources. Sustainable concrete blocks can be considered as one of the products produced by using these materials as partial volume replacement of the coarse, fine aggregate, or cement content, considering their dry density, workability, absorption, compressive strength, and thermal conductivity tests evaluate their performance- and conformity with specifications. The results of tests on samples of sustainable concrete blocks showed the feasibility of using demolished building waste as aggregates instead of natural materials for their production.
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Smolka, Radim, Jan Plachý, Petr Kacálek, and Tomáš Petříček. "Construction Details from Secondary Raw Materials." Applied Mechanics and Materials 824 (January 2016): 188–95. http://dx.doi.org/10.4028/www.scientific.net/amm.824.188.
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During decreasing of the energy demand is within the framework of the idea of sustainable construction not only required to decrease the total energy demand of the buildings, search and solve the critical spots in the building jacketing, but also to use the secondary raw materials as full-value substitutions for commonly used products from the primary raw materials. Recycled materials put into production represent possibilities how to decrease number of acquired virgin materials, need of primary energy and how to decrease risks connected to the waste disposal.
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Czarnecki, Slawomir, and Marlena Rudner. "Recycling of Materials from Renovation and Demolition of Building Structures in the Spirit of Sustainable Material Engineering." Buildings 13, no. 7 (July 21, 2023): 1842. http://dx.doi.org/10.3390/buildings13071842.
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In the European Union, more than 20% of residential buildings were constructed prior to 1945 and are approaching the end of their projected lifespan. This necessitates renovations or demolitions of these structures. A study was conducted to analyze the quantity of waste generated during the dismantling of a representative building from that era. Construction waste is produced during the building process and its disposal can be costly. Sustainable material engineering offers a solution by promoting the reuse of waste materials. When designing new products, manufacturers should consider using waste materials and ensure they have an extended lifespan, efficient life cycle management, and sustainable consumption. A study has shown that researchers are currently exploring the potential use of waste steel, bricks, wood, and glass in composite materials. Direct reuse of waste in the construction industry has also been observed. However, users’ preferences show that while environmental concerns are important, good quality and price are still the primary factors that drive consumer demand. Therefore, materials made from waste materials must demonstrate excellent parameters to gain consumer acceptance. Education initiatives such as green building certifications and education programs for construction professionals and the general public can help promote sustainable practices. Despite progress made in sustainable development, there is still a need for further education to encourage the adoption of sustainable practices.
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Shchepochkina, Julia, Dmitry Klyosov, Nadezhda Matyusheva, Vladimir Zyryanov, and Aidar Nurullin. "Collection and sorting of glass waste for recycling in the production of building materials and products." E3S Web of Conferences 443 (2023): 05006. http://dx.doi.org/10.1051/e3sconf/202344305006.
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The problems of collecting and sorting glass waste at the place of their formation, extraction of waste from dumps are considered. The sorting of glass waste according to the principle of the former purpose of the product made from it is proposed. It is proposed to divide all glass waste collected or extracted from dumps into ten groups for subsequent processing in the production of a wide range of building materials and products.
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Białko, Marta, Bożena Hoła, Mariusz Topolski, and Zuzanna Woźniak. "Waste Reduction Methods Used in Construction Companies with Regards to Selected Building Products." Applied Sciences 12, no. 11 (May 26, 2022): 5387. http://dx.doi.org/10.3390/app12115387.
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This article presents research that aims to identify waste reduction methods used in the construction industry in relation to the following materials: steel, concrete, masonry products, finishing products (i.e., ceramic, and stone tiles), and wood and the dependence between the use of these methods and the size of the construction company. The research is based on surveys conducted amongst construction site managers in Sharjah, United Arab Emirates. In the research, 13 methods of reducing construction waste were analyzed using Pearson’s independence test and the SPSS-26 software. Methods of reducing construction waste were identified. The study determined the frequency with which waste reduction methods in each material group were used, depending on the size of the company. Amongst the 13 methods analyzed, the ones which demonstrate a relationship between frequency of methods and size of the company were identified (for all groups of materials): the use of monitoring systems, reuse of materials within the construction, use of prefabricated elements, adequate storage, and engagement of subcontractors. In the case of the other tested methods, no such relationship was found.
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Auyesbek, Sultan, Nuraly Sarsenbayev, Aisulu Abduova, Bakhytzhan Sarsenbayev, Saken Uderbayev, Zhambyl Aimenov, Gulmira Kenzhaliyeva, et al. "Man-Made Raw Materials for the Production of Composite Silicate Materials Using Energy-Saving Technology." Journal of Composites Science 7, no. 3 (March 16, 2023): 124. http://dx.doi.org/10.3390/jcs7030124.
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This paper presents the development of composite silicate mass compositions based on man-made waste for the production of autoclave hardening products, as well as the results of physico-chemical studies of hydration products of silicate materials. The possibility, expediency and efficiency of using multi-tonnage technogenic waste of Kazakhstan in the industry of composite building materials is shown. Based on the results of the conducted research, the composition of a composite silicate mass based on burnt carbonate-barium tailings (8–12%), electrothermophosphoric slags (82–90%) or sand and dust from cement kiln electrofilters (2–5%) for the production of autoclave hardening products was developed. It was found that the cementing substance in composite silicate materials is represented by CSH(B) calcium silicate hydrates, tobermorite and serpentine. The simultaneous presence of fibrous and crystalline calcium and magnesium silicate hydrates in hydration products leads to the creation of composite products with a maximum strength of 41–49 MPa.
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Puertas, F., J. A. Suárez-Navarro, M. M. Alonso, and C. Gascó. "NORM waste, cements, and concretes. A review." Materiales de Construcción 71, no. 344 (August 24, 2021): e259. http://dx.doi.org/10.3989/mc.2021.13520.
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The use of industrial waste and/or by-products as alternative sources of raw materials in building materials has become standard practice. The result, more sustainable construction, is contributing to the institution of a circular economy. Nonetheless, all necessary precautions must be taken to ensure that the inclusion and use of such materials entail no new health hazard for people or their environment. Due to the processes involved in generating industrial waste/by-products, these alternative or secondary materials may be contaminated with heavy metals, other undesirable chemicals or high levels of natural radioactivity that may constrain their use. In-depth and realistic research on such industrial waste is consequently requisite to its deployment in building materials. This paper reviews the basic concepts associated with radioactivity and natural radioactivity, focusing on industrial waste/by-products comprising Naturally Occurring Radioactive Materials (NORM) used in cement and concrete manufacture. Updated radiological data are furnished on such waste (including plant fly ash, iron and steel mill slag, bauxite and phosphogypsum waste) and on other materials such as limestone, gypsum and so on. The paper also presents recent findings on radionuclide activity concentrations in Portland cements and concretes not bearing NORMs. The role of natural aggregate in end concrete radiological behaviour is broached. The radiological behaviour of alternative non-portland cements and concretes, such as alkali-activated materials and geopolymers, is also addressed.
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Baruzdin, Aleksandr, and Lyubov Zakrevskaya. "Prospects of recycling in construction in order to create innovative composite materials." Smart composite in construction 4, no. 3 (September 23, 2023): 29–54. http://dx.doi.org/10.52957/2782-1919-2024-4-3-29-54.
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The article classifies construction wastes and assesses the possibility of using them to produce new construction materials. The authors present examples of obtaining composites on the basis of glass and brick waste, reinforced concrete debris, gypsum plasterboard, drywall, wood, asbestos cement, polyvinyl chloride, and cross-linked polyethylene. The analysis of literature sources reveals the manufacturing of building materials and products on the basis of construction waste. Their using is a promising direction of production development, allowing us to reduce costs, conserve natural resources, and minimize the negative impact on the environment. The wastes of cross-linked polyethylene (insulation of cables and pipelines) belong to the wastes, recycling of which is poorly studied or complicated. The article also provides the results of research aimed at the synthesis of oil-resistant concrete on the basis of cross-linked polyethylene waste and crushed bricks, indicating the prospects of using cross-linked polyethylene as an aggregate for the production of concrete.
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Larionov, Arkadiy, and Raheem Al-Rubaye Saba Jasim. "Recycling building materials is the ideal way to protect the environment." E3S Web of Conferences 258 (2021): 09046. http://dx.doi.org/10.1051/e3sconf/202125809046.
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Annotation. At the present time, the issues of combating environmental pollution are especially acute in the world. At various scientific and public platforms, the sources of the negative impact on the environment and ways to restore the ecosystem are discussed. The purpose of this article is to consider one of the main sources of environmental pollution - construction waste. Having studied a number of works on this topic and summarizing the results obtained, the authors give a detailed description of environmentally hazardous construction waste. At the same time, the authors propose a solution to this problem, which consists in the recycling of waste, that is, in the reuse of unnecessary things for the purpose of subsequent use as raw materials, energy, materials and consumer products. The authors argue that recycling waste can be safe and profitable, with great returns. Thus, the recycling of environmentally hazardous, in this particular case, construction waste will contribute not only to solving environmental issues, but also to improve the economic situation of the state.
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SELEZNEV, A. D., N. V. KUZNETSOVA, and V. A. EZERSKIY. "CEMENT BUILDING MATERIALS WITH POWDERED OPTICAL DISCS AS A FILLER." Building and reconstruction 91, no. 5 (2020): 125–32. http://dx.doi.org/10.33979/2073-7416-2020-91-5-125-132.
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The object of study is a cement composite material with powdered utilized optical discs. The objective is to establish the dependences of the main strength characteristics – compressive strength, bending strength, and density – on the amount of waste added into the mixture and the water-cement ratio. The compositions of the mixtures for the production of the cement composite material samples consisted of the following components: cement, sand, powdered waste in the form of utilized optical discs and water. Based on the results of testing the samples, mathematical models have been developed which describe the dependences of the physical and mechanical properties of the cement composite material samples on the fraction of waste and water-cement ratio. It was found that with an increase in the amount of powdered waste added into the mixture, it reduces the compressive strength, bending strength, and density of the samples under study, however, the optimization of the water-cement ratio makes it possible to obtain equal strength compositions with a different fraction of waste. Component compositions of cement composite material mixtures with the addition of powdered utilized optical discs in the amount of 10 to 25 % of the total filler mass, which can provide construction products with a compressive strength class B20, are presented.
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da Silva, Tulane Rodrigues, Afonso Rangel Garcez de Azevedo, Daiane Cecchin, Markssuel Teixeira Marvila, Mugahed Amran, Roman Fediuk, Nikolai Vatin, Maria Karelina, Sergey Klyuev, and Maciej Szelag. "Application of Plastic Wastes in Construction Materials: A Review Using the Concept of Life-Cycle Assessment in the Context of Recent Research for Future Perspectives." Materials 14, no. 13 (June 25, 2021): 3549. http://dx.doi.org/10.3390/ma14133549.
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The urbanization process contributes to the growth of solid waste generation and causes an increase in environmental impacts and failures in the management of solid waste. The number of dumps is a concern due to the limited implementation and safe disposal of this waste. The interest in sustainable techniques has been growing in relation to waste management, which is largely absorbed by the civil construction sector. This work aimed to review plastic waste, especially polyethylene terephthalate (PET), that can be incorporated with construction materials, such as concrete, mortars, asphalt mixtures, and paving. The use of life-cycle assessment (LCA) is related, as a tool that allows the sustainability of products and processes to be enhanced in the long term. After analyzing the recent literature, it was identified that studies related to plastic wastes in construction materials concentrate sustainability around the alternative destination of waste. Since the plastic waste from different production chains are obtained, it was possible to affirm the need for a broader assessment, such as the LCA, providing greater quantification of data making the alternative processes and products more sustainable. The study contributes to enhance sustainability in alternative building materials through LCA.
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Voronov, G. K., A. I. Fesenko, O. V. Savvova, S. O. Melnyk, and O. P. Dehurko. "Prospects for the use of stone processing waste to obtain architectural and building ceramics." Кераміка: наука і життя, no. 4(45) (December 27, 2019): 7–13. http://dx.doi.org/10.26909/csl.4.2019.1.
Full textAbstract:
The article presents the results of a study of stone processing waste in order to justify the implementation of the technological process of manufacturing architectural and construction products with their use. The structure of the distribution of waste arising from stone processing processes is given. The analysis of the relevance of the problems of utilization of slurry waste stone processing. Studies were conducted to determine the chemical, mineralogical and phase composition of stone waste. It was found that these wastes belong to gabbro-diabase rocks, which was confirmed by their chemical and mineralogical composition. The main mineral components are plagioclase, pyroxene and minerals of the iron group. The moisture content of the initial pulp and the particle size distribution of dry sludge were determined. Based on the results of establishing the melting temperature and fire resistance of baked sludge samples, the possibility of obtaining architectural and construction products based on dry sludge using ceramic technology (semi-dry pressing and sintering) was established, for which a selection of technological parameters and initial mass compositions was carried out. The promising compositions of ceramic masses with a significant sludge content (up to 60%), as well as the temperature-time regimes of the formation of ceramic materials, which are in the range from 1100 to 1200°C, are determined. The physicomechanical properties for sintered ceramic materials are studied, namely, mechanical strength compression (up to 55 MPa) and wear resistance (up to 0,45%), which corresponds to the properties of clinker ceramic materials. Based on the foregoing, a conclusion was drawn on the prospects of using stone slurry for obtaining ceramic products for architectural and construction purposes.