Articles de revues : « Construction and demolition waste prevention »

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Vondráčková, Terezie, Luboš Podolka et Věra Voštová. « Handling construction waste of building demolition ». MATEC Web of Conferences 146 (2018) : 03012. http://dx.doi.org/10.1051/matecconf/201814603012.

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Some building defects lead to their demolition. What about construction and demolition waste? According to the Waste Act 185/2001 Coll. and its amendment 223/2015 Coll., which comes into force on January 1, 2017, the production of waste has to be reduced because, as already stated in the amendment to Act No. 229/2014 Coll., the ban on landfilling of waste will apply from 2024 onwards. The main goals of waste management can thus be considered: Preventing or minimizing waste; Waste handling to be used as a secondary raw material - recycling, composting, combustion and the remaining waste to be dumped. Company AZS 98 s. r. o. was established, among other activities, also for the purpose of recycling construction and demolition waste. It operates 12 recycling centers throughout the Czech Republic and therefore we have selected it for a demonstration of the handling of construction and demolition waste in addressing the defects of the buildings.

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Verhagen, Teun Johannes, Marijn Louise Sauer, Ester van der Voet et Benjamin Sprecher. « Matching Demolition and Construction Material Flows, an Urban Mining Case Study ». Sustainability 13, n^o 2 (12 janvier 2021) : 653. http://dx.doi.org/10.3390/su13020653.

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The recycling of demolition waste is essential to lower the construction sectors primary material demand, responsible for 50% of the global primary material consumption. Almost all demolition waste is used as filler material for the construction of roads, preventing further reuse or recycling after this application. The built environment generates considerable annual material in-and outflows. However, there has been little discussion on the availability and further application of this potential supply of secondary materials as a replacement for primary materials. In this study, we quantify the percentage of demolition waste that can be repurposed as secondary materials in the Dutch construction sector. We analyzed the yearly building material flows for the municipality of Leiden using municipal data on demolition and construction to explore the viability of the Dutch government’s policy goal to reduce primary materials consumption by 50% before 2030. From this analysis, we find that the recycling of demolition waste has a sizable potential but just falls short of the stated policy goal. Even in a situation with more construction than demolition, there will remain a considerable mismatch in the yearly construction material demand and available supply of demolition waste for our municipal-wide case study. More importantly, the current processing of demolition waste in the Netherlands will require significant improvements to achieve this goal. New governmental policies are required to focus on maintaining material quality and allowing further use of recycled materials as buildings materials.

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Dias, Adriana B., João N. Pacheco, José D. Silvestre, Isabel M. Martins et Jorge de Brito. « Environmental and Economic Life Cycle Assessment of Recycled Coarse Aggregates : A Portuguese Case Study ». Materials 14, n^o 18 (21 septembre 2021) : 5452. http://dx.doi.org/10.3390/ma14185452.

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The incorporation of recycled aggregates in concrete not only reduces the extraction of natural resources, but also decreases landfill disposal of construction and demolition waste. Hence, environmental impacts and costs are reduced, promoting the use of recycled aggregates and circular economy. However, the impacts of transport depend on the distance between facilities and longer distances may result in recycled aggregates being more costly and having larger environmental impact than natural aggregates. This paper discusses this topic, presents a review on the use of life cycle assessment methodology on natural and recycled aggregates for concrete, and applies this methodology in a real context pertaining the procurement of coarse aggregates to ready-mix concrete plants. A case study of two Portuguese regions, Coimbra and Lisbon, is presented. For each region, a quarry, a construction and demolition waste plant, and a ready-mix concrete plant are chosen and a comparative life cycle assessment is made. Different scenarios for the supply of natural and recycled aggregates are studied and the scenarios for recycled aggregates procurement include different hypotheses for the installation (construction and demolition waste plant or quarry) processing the construction and demolition waste into recycled aggregates. For this case study and both regions, it was found that the supply of recycled aggregates produced at the construction and demolition waste plant has lower environmental impact and cost than all other scenarios, including the provision of natural aggregates, except when it is assumed that the quarry is licensed and equipped for receiving unsorted construction and demolition waste and processing it into recycled aggregates. The paper shows that transport distance is a determining factor in the comparison of the impacts of the procurement of natural and recycled aggregates. Moreover, in the Portuguese context, the environmental impacts of the procurement of recycled aggregates may be smaller than those of natural aggregates, but cost may be larger for recycled aggregates, preventing that the most sustainable option is chosen.

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Aytekin, Burcu, et Ali Mardani-Aghabaglou. « Sustainable Materials : A Review of Recycled Concrete Aggregate Utilization as Pavement Material ». Transportation Research Record : Journal of the Transportation Research Board 2676, n^o 3 (28 octobre 2021) : 468–91. http://dx.doi.org/10.1177/03611981211052026.

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In this paper, a comprehensive literature review was conducted on the utilization of recycled concrete aggregate (RCA), which is the dominant construction and demolition waste material, in base and subbase layers and its comparison with natural aggregate (NA). The effects of crushing on the particles as a result of the compaction on the resilient modulus, permanent deformation, and California Bearing Ratio are analyzed. The paper also contains the NA consumption and waste disposal policies of different countries, RCA standards, and the environmental-economic reasons for its use. This literature review mainly focuses on pavement layers as this is the main application of RCA in the use of recycled materials. Developing integrated construction and demolition waste management will help achieve the primary goal of preventing and reducing the generation of these wastes, both locally and globally. In this way, not only is the main purpose of preventing the increase in the production of construction and demolition waste achieved, but also the reuse and recycling of the waste materials produced are encouraged. Results show that RCA has equivalent or better performance than virgin aggregate for almost any application with proper care and process control, and can be used in unbound pavement layers or other applications requiring compaction. But it is always recommended that its mechanical properties and durability performance be evaluated with full-scale tests before use. The information provided will be useful for contractors and engineers to evaluate alternative solutions and to explore the rational use of such sustainable materials in applications.

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Ting, Sim Nee, Awgku Mohd Firdaus Nee Bin Awg Sakawi, Hieng Ho Lau et Andrew Whyte. « Minimisation of Construction Waste Using the Principles of Waste Management ». ASM Science Journal 17 (22 décembre 2022) : 1–9. http://dx.doi.org/10.32802/asmscj.2022.1352.

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Construction waste especially material waste is one major concern for the construction projects and has important implications in terms of socioeconomic and environmental aspects for the country. Construction industry being largest consumer of raw materials derived from natural resources also produces high amount of material waste that negatively impacts the environment. The building industry alone in Malaysia has reportedly generated approximately 25,600 tonnes of construction and demolition wastes daily due to rapid development. Therefore, any means of reducing material waste will not only result in significant cost savings within the projects but also reducing the pressure on the landfills and ease environmental concerns dealing with such waste conversion and recycling; and reduction. This study examines the causes and prevention of material waste in the construction specifically the building industry through the principles of waste management available. Questionnaires survey is the main tool deployed for data collection. The average and relative index were used to analyse the various aspects of the data collected. Stages of works used for the study include the material handling and storage stage; procurement of material stage; usage and operation of the material stage; and the design and documentation stage. The results indicate that respondents are aware of the concept of waste management but lack of awareness on the availability of such guidelines. It is hopeful that this study can improve on waste management implementation in order to uptake the principle of reduce, recycle and reuse material waste so as to reduce construction costs, provide good savings to the end users and improve the level of productivity of the nation.

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Bonoli, Alessandra, Sara Zanni et Francisco Serrano-Bernardo. « Sustainability in Building and Construction within the Framework of Circular Cities and European New Green Deal. The Contribution of Concrete Recycling ». Sustainability 13, n^o 4 (17 février 2021) : 2139. http://dx.doi.org/10.3390/su13042139.

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Climate change and ecological crisis are a huge threat to Europe and the world. To overcome these challenges, Europe adopted the New Green Deal as a strategy transforming the Union into a competitive resource-efficient economy without greenhouse gas emissions and become carbon neutral in a few decades. The European Green Deal includes the new circular economy action plan, highlighting the importance of a products’ “green design”, saving raw materials, and waste prevention oriented along the entire life cycle of products. Construction and buildings represent one of the key topics for the green transition. In the European Union, buildings are responsible for 40% of our energy consumption and 36% of greenhouse gas emissions, which are mainly caused by construction, usage, renovation, and demolition. Improving environmental efficiency can play a key role in reaching the carbon neutrality of Europe that is expected to be achieved by 2050. In this research, it was explored how Eco-design, as an innovative approach in buildings and construction, Life Cycle Thinking and Life Cycle Assessment, as fundamental supporting tools in sustainability, and finally appropriate and effective Construction and Demolition Waste recycling processes, particularly oriented to concrete recycling according to the case studies analyzed, can promote a circular economy in buildings and construction.

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Quiñones, Rocío, Carmen Llatas, Maria Victoria Montes et Isidro Cortés. « Quantification of Construction Waste in Early Design Stages Using Bim-Based Tool ». Recycling 7, n^o 5 (31 août 2022) : 63. http://dx.doi.org/10.3390/recycling7050063.

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Construction and demolition waste represents a growing environmental, social, and economic problem, and has become a priority for European and worldwide policies. The early quantification of construction waste is essential for the minimisation of its production and the improvement of waste management. This requires the development of design-based tools that enable a better understanding of the expected waste produced during the construction phase. Building Information Modelling (BIM) methodologies have gained recognition in the Architecture, Engineering, Construction, and Operations (AECO) sector, largely due to their capacity for data simulation, storage, and management during the building design phase. This study presents a software application, called WE-BIM Add-in, to quantify construction waste (CW) while designing the BIM model in Revit. A validated CW quantification model which enables waste types and quantities per building element to be predicted in detail according to the European List of Waste (LoW) is integrated into the Revit workflow. Design alternatives could be effortlessly simulated in real time to assist practitioners in decision-making during the early design stages. Two alternative structural systems of a Spanish residential building were compared: a reinforced concrete structure, Option 1 (O1), and a steel structure, Option 2 (O2). The results were obtained automatically: O2, in addition to reducing 56% of O1′s waste, would have increased the waste recycling rate by 49%; and displayed in Revit, thereby remaining consistent with those of other studies that compare prefabricated systems with in situ systems. This work provides a basis for future research into the automated estimation of construction waste in BIM which could become a useful tool in waste-prevention policies.

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Infante Gomes, Ricardo, David Bastos, Catarina Brazão Farinha, Cinthia Maia Pederneiras, Rosário Veiga, Jorge de Brito, Paulina Faria et António Santos Silva. « Mortars with CDW Recycled Aggregates Submitted to High Levels of CO2 ». Infrastructures 6, n^o 11 (5 novembre 2021) : 159. http://dx.doi.org/10.3390/infrastructures6110159.

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Construction and demolition wastes (CDW) are generated at a large scale and have a diversified potential in the construction sector. The replacement of natural aggregates (NA) with CDW recycled aggregates (RA) in construction materials, such as mortars, has several environmental benefits, such as the reduction in the natural resources used in these products and simultaneous prevention of waste landfill. Complementarily, CDW have the potential to capture CO2 since some of their components may carbonate, which also contributes to a decrease in global warming potential. The main objective of this research is to evaluate the influence of the exposure of CDW RA to CO2 produced in cement factories and its effect on mortars. Several mortars were developed with a volumetric ratio of 1:4 (cement: aggregate), with NA (reference mortar), CDW RA and CDW RA exposed to high levels of CO2 (CRA). The two types of waste aggregate were incorporated, replacing NA at 50% and 100% (in volume). The mortars with NA and non-carbonated RA and CRA from CDW were analysed, accounting for their performance in the fresh and hardened states in terms of workability, mechanical behaviour and water absorption by capillarity. It was concluded that mortars with CDW (both CRA and non-carbonated RA) generally present a good performance for non-structural purposes, although they suffer a moderate decrease in mechanical performance when NA is replaced with RA. Additionally, small improvements were found in the performance of the aggregates and mortars with CRA subjected to a CO2 curing for a short period (5 h), while a long carbonation period (5 d) led to a decrease in performance, contrary to the results obtained in the literature that indicate a significant increase in such characteristics. This difference could be because the literature focused on made-in-laboratory CDW aggregates, while, in this research, the wastes came from real demolition activities, and were thus older and more heterogeneous.

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Hao, Jianli, Francesco Di Maria, Zhikun Chen, Shiwang Yu, Wenting Ma et Luigi Di Sarno. « COMPARATIVE STUDY OF ON-SITE SORTING FOR C&D IN CHINA AND EUROPE ». Detritus, n^o 13 (30 novembre 2020) : 114–21. http://dx.doi.org/10.31025/2611-4135/2020.14029.

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Construction and demolition waste (CDW) accounts for 40% of urban municipal waste in China and around 25% in the European Union (EU). Since the EU is more developed and urbanized than China, its experience with managing CDW may be helpful to China. This study therefore compared China and the EU with respect to the flow of CDW materials and the policies, laws and regulations for CDW management. The results reveal that the CDW management practices and facilities in China are relatively underdeveloped with a large amount of low-value inert material going to landfill compared with the EU. The study also reveals the important role of government involvement in CDW management, including the use of punitive measures and preferential policies; most EU members states achieved their waste recovery rates by 2016 due to mature CDW legalization. To improve the management of CDW in China, a series of suggestions are proposed including waste prevention strategies, establishment of supervision mechanisms, and financial support.

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Andriamasinoro, Fenintsoa, et Daniel Monfort-Climent. « Consideration of Complexity in the Management of Construction and Demolition Waste Flow in French Regions : An Agent-Based Computational Economics Approach ». Modelling 2, n^o 3 (25 août 2021) : 385–405. http://dx.doi.org/10.3390/modelling2030021.

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For each region of France, there is currently a program to implement a plan for regional prevention and management of construction and demolition waste (CDW) used in the buildings and public works (e.g., roads) sector, also called the BTP (from the French Bâtiment et Travaux Publics) sector. To implement such a plan, its complexity must be considered; i.e., account (a) for how different scales are endogenously connected and (b) for decision-making rules at each scale being introduced. However, this complexity has rarely been taken into account in the literature. Using the PACA region as a case-study, this paper presents the first results of modelling that determines a hypotheses for the geographic distribution of the road renovation rate in each municipality (microscale) and Department (mesoscale) in a region of France. Such a renovation requires recycled aggregates (gravel) and asphalt supplies simultaneously. To consider this endogenous connection between scales, the model at the micro-scale must also be calibrated so the simulated values emerging at a higher-scale approach a supply–demand balance. We also discuss the transposition of the model to another French region (Ile-de-France). The method we used is the Agent-based Computational Economics (ACE) modelling approach. In addition, the coherent interplay between scales is determined by an approach called pattern-oriented modelling (POM). Our research revealed, at a thematic level, that for a circular economy to develop, the network of facilities in the territory is very important, and effective commercialization of secondary resources is major in the areas that group together recycling platforms and nearby asphalt plants. At a methodological level, our research revealed that in any multi-level modelling exercise, POM can be seen as an essential approach to accompany the ACE approach, particularly for a macroeconomic (here macro = regional) looping of a model designed at a microscale. However, convincing the BTP sector to integrate ACE/POM as a full part of a methodological support for regional prevention and management of CDW remains a challenge

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Rodríguez Pasandín, Ana M., Ignacio Pérez Pérez Pérez et Breixo Gómez Meijide. « Characterization of Hot-Mix Asphalt Made with Recycled Concrete Aggregates that Have Been Cured for 4 Hours in the Oven ». Advanced Materials Research 849 (novembre 2013) : 81–87. http://dx.doi.org/10.4028/www.scientific.net/amr.849.81.

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In this research a laboratory characterization of hot-mix asphalt (HMA) made with recycled concrete aggregates (RCA) from construction and demolition waste (CDW) as base layer in road construction has been conducted. HMA containing 5%, 10%, 20% and 30% of RCA in place of virgin aggregate were evaluated. To improve water resistance of the mixtures, they were left in an oven for 4 hours at mixing temperature before compaction to allow the bitumen absorption and, in addition, obstructing the mortar pores, strengthening the attached mortar onto the RCA surface and thus, preventing water pathways. The tested mixtures complied with Spanish water resistance requirement and also showed a water resistance performance much higher than that of the mixtures that were not cured in the oven. Stiffness and resistance to permanent deformation were also studied showing satisfactory results.

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Iyer-Raniga, Usha, et Margherita Finamore. « Green public procurement : learnings from Pesaro city, Italy ». IOP Conference Series : Earth and Environmental Science 855, n^o 1 (1 octobre 2021) : 012006. http://dx.doi.org/10.1088/1755-1315/855/1/012006.

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Abstract The development of mandatory green public procurement requirements is a significant and tangible contribution to undertaking planned, sustainable deconstruction (rather than demolition) approach to increase recycling materials, creating new businesses and new green jobs. Research undertaken of a procurement process for Pesaro, Italy demonstrates the application of an assessment approach and method based on holistic evaluation and interpretation of multiple sustainability aspects of buildings and their parts. Taking a holistic life cycle approach, this case study provides a clear evidence of how to foster ‘circular’ alternatives compared to linear, business as usual options in the management of public procurement. A competitive procedure in the procurement process was undertaken resulting in materials either being reused or taken to a recycling centre. The reuse of the materials during the new construction phase also included monitoring the quantity of all materials, preventing any waste and encouraging optimised reuse. This study shows that it is possible to drive the market towards a circular thinking and a circular construction site management is a critical requirement for transitioning towards a circular built environment. By ensuring that tendering processes support and develop sustainable recovery of waste materials, this study shows that it is possible to provide materials second and third life.

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Blandón, Begoña, Luís Palmero et Giacomo di Ruocco. « The Revaluation of Uninhabited Popular Patrimony under Environmental and Sustainability Parameters ». Sustainability 12, n^o 14 (13 juillet 2020) : 5629. http://dx.doi.org/10.3390/su12145629.

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Abandoning rural areas requires promoting their repopulation. In Europe, wealth and life in these enclaves are valued. However, the current state of these houses does not meet actual needs and requires interventions to actualize current standards. Therefore, decisions in the design and execution of the works will generate a volume of construction and demolition waste (CDW), which must be managed sustainably out of respect towards its origin, the architecture, and the surrounding environment. This paper examines the prevention and management of CDW, providing control strategies and actions to monitor and plan them from the rehabilitation project itself. Some of the interventions carried out in recent years on this type of housing have been analyzed and the existing management protocols within the European Union have been reviewed, specifying their application in Mediterranean popular housing. As a result, we herein show a representative case that observes the existing reality regarding the destination of generated CDW and delves into their possibilities for use. We present these findings in order to reduce the energy cost resulting from manufacturing new materials and meeting the established sustainability and energy efficiency parameters.

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Majumder, Arnas, Laura Canale, Costantino Carlo Mastino, Antonio Pacitto, Andrea Frattolillo et Marco Dell’Isola. « Thermal Characterization of Recycled Materials for Building Insulation ». Energies 14, n^o 12 (15 juin 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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Ram, VG, et Satyanarayana N. Kalidindi. « Estimation of construction and demolition waste using waste generation rates in Chennai, India ». Waste Management & ; Research : The Journal for a Sustainable Circular Economy 35, n^o 6 (1 mars 2017) : 610–17. http://dx.doi.org/10.1177/0734242x17693297.

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A large amount of construction and demolition waste is being generated owing to rapid urbanisation in Indian cities. A reliable estimate of construction and demolition waste generation is essential to create awareness about this stream of solid waste among the government bodies in India. However, the required data to estimate construction and demolition waste generation in India are unavailable or not explicitly documented. This study proposed an approach to estimate construction and demolition waste generation using waste generation rates and demonstrated it by estimating construction and demolition waste generation in Chennai city. The demolition waste generation rates of primary materials were determined through regression analysis using waste generation data from 45 case studies. Materials, such as wood, electrical wires, doors, windows and reinforcement steel, were found to be salvaged and sold on the secondary market. Concrete and masonry debris were dumped in either landfills or unauthorised places. The total quantity of construction and demolition debris generated in Chennai city in 2013 was estimated to be 1.14 million tonnes. The proportion of masonry debris was found to be 76% of the total quantity of demolition debris. Construction and demolition debris forms about 36% of the total solid waste generated in Chennai city. A gross underestimation of construction and demolition waste generation in some earlier studies in India has also been shown. The methodology proposed could be utilised by government bodies, policymakers and researchers to generate reliable estimates of construction and demolition waste in other developing countries facing similar challenges of limited data availability.

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Myneni, Kranti kumar, et Rajan D. « IMPACT OF CIRCULAR CONSTRUCTION ON DEMOLITION WASTE MANAGEMENT IN THE INDIAN CONSTRUCTION INDUSTRY ». International Journal of Engineering Technologies and Management Research 8, n^o 1 (1 février 2021) : 12–24. http://dx.doi.org/10.29121/ijetmr.v8.i1.2021.846.

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In recent times due to the Indian economic growth, there is a surge in construction activities. This surge has led to an excess amount of demolition waste that is produced. According to the Building Material Promotion Council, India generates an estimated 150 million tons of C and D waste every year. Some existing initiatives and the significant stakeholders' involvement have created the demolition waste management systems essential in the building’s demolition phase. The research in the C and D and Awareness program for C and D waste that initiated has led to the implementation of some waste management systems in the building's demolition phase. In India, the amount of demolition waste produced is higher than the construction waste produced while constructing buildings. So, it is essential for the demolition waste mitigation plan in the building's demolition phase. The study aims to know circular construction and current demolition waste management performance in the Indian construction industry. Through literature review, demolition waste management systems that are carried out all around the world are collected. The current practices carried out by diﬀerent stakeholders practicing in India are known through a questionnaire survey. Data interpretation is made using the data collected in the literature review and the questionnaire survey. This research identified the signiﬁcant beneﬁts, barriers, and motivation factors to implement the waste management system, and proposing any necessary changes. Designer innovation and BIM deconstruction is considered as one of the barrier-breaking innovation in adopting the circular construction.

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Mália, Miguel, Jorge de Brito, Manuel Duarte Pinheiro et Miguel Bravo. « Construction and demolition waste indicators ». Waste Management & ; Research 31, n^o 3 (11 janvier 2013) : 241–55. http://dx.doi.org/10.1177/0734242x12471707.

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del Río Merino, Mercedes, Pilar Izquierdo Gracia et Isabel Salto Weis Azevedo. « Sustainable construction : construction and demolition waste reconsidered ». Waste Management & ; Research 28, n^o 2 (septembre 2009) : 118–29. http://dx.doi.org/10.1177/0734242x09103841.

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Nunes, KRA, et CF Mahler. « Comparison of construction and demolition waste management between Brazil, European Union and USA ». Waste Management & ; Research : The Journal for a Sustainable Circular Economy 38, n^o 4 (11 février 2020) : 415–22. http://dx.doi.org/10.1177/0734242x20902814.

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Construction and demolition waste represents a significant waste flow, both in Brazil and in other countries. According to specific Brazilian legislation, since 2004 construction and demolition waste can no longer be disposed of in open dumps, municipal solid waste landfills, slopes, waterways and environmental protected areas. Construction and demolition waste should preferably be recycled, but just a small amount of it returns to the construction industry production chain in Brazil. This work aims both to present diagnoses of the construction and demolition waste management in Brazil, the European Union and the United States and to compare their results. It is concluded that Brazil presents performance indicators in relation to construction and demolition waste management well below those found for the other analysed countries. Furthermore, differences and similarities are identified and potentials for improvement in the current situation of construction and demolition waste in Brazil are discussed.

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Poon, C. S. « Management of construction and demolition waste ». Waste Management 27, n^o 2 (janvier 2007) : 159–60. http://dx.doi.org/10.1016/j.wasman.2006.10.012.

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Barbudo, Auxi, Jesús Ayuso, Angélica Lozano, Manuel Cabrera et Antonio López-Uceda. « Recommendations for the Management of Construction and Demolition Waste in Treatment Plants ». Proceedings 2, n^o 20 (18 octobre 2018) : 1278. http://dx.doi.org/10.3390/proceedings2201278.

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Construction and demolition waste consists approximately of one third waste generated in the European Union. The recycling of this stream waste will provide ecological and sustainable benefits. Recycled aggregates from construction and demolition waste are clearing a path into civil constructions, as substitutes for natural aggregates. The possible applications of recycled aggregates on infrastructure construction projects will depend on the quality of the recycled aggregates mainly. This will be determined by the nature and the origin of the construction and demolition waste, and the treatment system undergone. Hence, this work proposes recommendations for the handling of construction and demolition waste in treatment plants.

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Guo, Dongming, et Lizhen Huang. « The State of the Art of Material Flow Analysis Research Based on Construction and Demolition Waste Recycling and Disposal ». Buildings 9, n^o 10 (21 septembre 2019) : 207. http://dx.doi.org/10.3390/buildings9100207.

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Construction and demolition waste (C&D waste) are widely recognized as the main form municipal solid waste, and its recycling and reuse are an important issue in sustainable city development. Material flow analysis (MFA) can quantify materials flows and stocks, and is a useful tool for the analysis of construction and demolition waste management. In recent years, material flow analysis has been continually researched in construction and demolition waste processing considering both single waste material and mixed wastes, and at regional, national, and global scales. Moreover, material flow analysis has had some new research extensions and new combined methods that provide dynamic, robust, and multifaceted assessments of construction and demolition waste. In this paper, we summarize and discuss the state of the art of material flow analysis research in the context of construction and demolition waste recycling and disposal. Furthermore, we also identify the current research gaps and future research directions that are expected to promote the development of MFA for construction and demolition waste processing in the field of sustainable city development.

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Marek, Martin, et Jana Korytárová. « Construction Waste Production in Macroeconomic Context ». IOP Conference Series : Materials Science and Engineering 1203, n^o 2 (1 novembre 2021) : 022080. http://dx.doi.org/10.1088/1757-899x/1203/2/022080.

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Abstract This article aims at presenting the economic impacts of implementing the basic principles of construction demolition waste management in terms of saving construction costs. Emphasis is placed on fulfilling the 3R principle, i.e. reducing waste, reusing it, and recycling resources and products. Construction and demolition waste represents the largest mass waste flow in the EU, e.g. in 2018, it represented 36% of the total waste production in the whole EU- 27. The European Union is gradually introducing measures to reduce the production of construction waste compared to the Czech Republic, where the share of construction demolition waste on the total production was up to 42% in 2018. This value exceeds the EU-27 average. The article analyses available statistical data from the national CZSO and the European statistical office EUROSTAT on the waste production classified according to EWC-STAT, which is a classification of waste according to Directive No. 2150/2002. Items monitoring the waste produced by the construction industry are listed on the 41st to 43rd place of the EWC-STAT list of all monitored waste. The data obtained allows comparing three branches of construction production, the 41st Building construction, 42nd Civil engineering, and 43rd Specialized construction activities. Another possibility to obtain data is to use a division according to the waste producer economic activity (CZ NACE). The data obtained in this way is compared with the performance indicators of the national economy. By comparing the size of the construction demolition waste production with the performance of the national economy (especially the GDP indicator), the degree of their interdependence was determined. The aim of the analysis is to assess the relation between the country’s economic performance and the production of construction and demolition waste. The next step was to perform an analysis from the point of view of the 3R principle in order to examine the impact of measures to reduce the construction demolition waste production in connection with the already initiated processes of its possible recycling or reuse.

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Shivaprasad, H., et Suresh Kommu. « Geo technical Laboratory Evaluation of Construction Demolition Recycled Material for Road Embankments ». IOP Conference Series : Earth and Environmental Science 982, n^o 1 (1 mars 2022) : 012064. http://dx.doi.org/10.1088/1755-1315/982/1/012064.

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Abstract The recycling of construction demolition waste material has already become a prime focus under sustainable technologies and innovations across the globe. A report announced by the Centre for Science and Environment (CSE), Delhi, in August 2020 stated, India generates approximately 150 million tons of construction demolition waste every year and recycles only 1%. The rest remains strewn across, in landfills causing air contamination and water tainting. Whereas “The United States Environment Protection Agency (USEPA)” approximated that 600 million tons of construction waste had been generated in 2016 in the USA, around 75% of the waste was recycled and also used effectively. The present paper focuses on predicting the suitability of recycled construction demolition waste material for road embankment and comparing its characteristics with conventional embankment materials. The Guidelines given by IRC and BIS were following to predict the feasibility of recycled construction demolition waste as fill material for road embankment. Laboratory results indicated the suitability of recycled construction demolition waste material for road embankments. This study probed a single source of construction demolition waste with one particular gradation as it can significantly alter the properties and suitability requirements.

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Zhang, Xiao Jing. « The Ways of Recycling of Solid Inorganic Construction Waste ». Advanced Materials Research 230-232 (mai 2011) : 834–36. http://dx.doi.org/10.4028/www.scientific.net/amr.230-232.834.

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The origin and constitutes of construction waste and demolition are expounded, and the bane of construction waste and demolition to environment is also introduced in this paper. The ways of recycling of concrete and tile in the construction waste and demolition, which was emphasized, not only mitigate destruction of the waste to the environment , but benefit the development of society.

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Noskova, E. V. « On the issue of construction and demolition waste recycling ». Вестник гражданских инженеров 17, n^o 1 (2020) : 224–27. http://dx.doi.org/10.23968/1999-5571-2020-17-1-224-227.

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The paper discusses the prospects for recycling of construction and demolition waste. The dynamics of waste volume resulting from various fields of activities in the Russian Federation is given. The author studies morphology of construction waste, as well as the prerequisites, barriers and possibilities for construction and demolition waste treatment for further use. The proposed recommendations for recycling of construction and demolition waste can be used by commercial and state organizations engaged in the field of construction and waste treatment, as well as by legislative bodies working in the field of regulation of waste collection, elimination of waste, and waste treatment.

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Spišáková, Marcela, Peter Mésároš et Tomáš Mandičák. « Construction Waste Audit in the Framework of Sustainable Waste Management in Construction Projects—Case Study ». Buildings 11, n^o 2 (11 février 2021) : 61. http://dx.doi.org/10.3390/buildings11020061.

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The issue of sustainability has long been the subject of interest in architecture engineering and the construction sector. All three aspects of sustainability—economic, environmental, and social—can be affected through appropriate construction waste management. Construction and demolition waste (CDW) is one of the largest worldwide waste streams, therefore, it is given great attention by all stakeholders (investors, contractors, authorities, etc.). Research studies show that one of the main barriers to insufficient CDW recovery is inadequate policies and legal frameworks to manage CDW. It is also one of European Union’s (EU) environmental priorities. The aim of the article was to confirm the economic potential of construction and demolition waste audit processing through a case study. A pre-demolition waste audit was processed for an unused shopping center building in the town Snina in Slovakia. Subsequently, a comparison of economic parameters (waste disposal costs and transport costs) of the recommended CDW management was performed. This comparison confirmed the economic benefits of environmentally friendly construction waste management methods according to the waste audit results, which would also increase the sustainability of construction projects. Additionally, the cost parameters of selected waste disposal methods could be another dimension of building information modeling.

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Gautam, Abhinav Singh, et S. K. Jaiswal. « Integrated Approach to Construction and Demolition Waste Management ». YMER Digital 21, n^o 05 (27 mai 2022) : 1189–93. http://dx.doi.org/10.37896/ymer21.05/d4.

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Management of construction and demolition waste is a major problem in Bhilai Charoda city due to the growing urban population, urbanization and lack of awareness of the people and carelessness of the governing bodies. This article highlights the actions taken for renewable construction and demolition waste management in Bhilai-Charoda city by analyzing the waste generation, collection, disposal scenario and steps taken to improve the condition of BhilaiCharoda city along with the integrated frame work. It advocates an integrated approach for the proper disposal and usage of construction and demolished waste. Keywords- Integrated, Construction, demolition, Waste management, Renewable, Disposal

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Bandeira, Sandy Rebelo, Jasminne Belentani Souza Maciel, João Carlos Silva de Oliveira et Antonio Estanislau Sanches. « Construction and Demolition Waste Management Practices at Construction Sites ». International Journal of Advanced Engineering Research and Science 6, n^o 10 (2019) : 35–45. http://dx.doi.org/10.22161/ijaers.610.7.

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Aleksanin, Aleksandr. « Development of construction waste management ». E3S Web of Conferences 97 (2019) : 06040. http://dx.doi.org/10.1051/e3sconf/20199706040.

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Improvement of building materials, optimization and development of technological processes of construction production require the development of promising areas of research to improve the efficiency of management of construction waste, which will provide economic and environmental benefits. The article provides statistical data on the volumes of formation and processing of construction and demolition waste, confirming the relevance and need for attention to the area of construction waste disposal. To improve the efficiency of construction and demolition waste management processes, it is proposed to create specialized centers that perform specific functions of coordinating material and information resources, which will track and coordinate the entire life cycle of waste from the source of education to the place of disposal or recycling. To improve the efficiency of processes for optimizing the management of construction waste, it is proposed to attract to them the organizational, economic and technological capabilities of private business.

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Bokarde, Kaushik. « Sustainable Management of Construction and Demolition Waste ». International Journal for Research in Applied Science and Engineering Technology 9, n^o 12 (31 décembre 2021) : 250–57. http://dx.doi.org/10.22214/ijraset.2021.39247.

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Abstract: Construction activity in India has magnified well within the past decade. Likewise, there has conjointly been a proportion to rise within the generation of construction and demolition waste (C&DW). This, alongside the fact that in India the speed of recycling and reuse of C&DW continues to be quite low and has engendered a heavy environmental downside and a motivation to develop ways and management plans to resolve it. Almost every time the construction and demolition waste end up settling in landfills disrupting the environmental, economic, and social life cycle. Its composition has a significant potential to reuse or recycle C&DW, and thereby, contribute to enhancing the sustainability of construction, however, practical procedures don’t seem to be widely known or practiced within the construction industry. Elements of construction and demolition waste generally embrace concrete, asphalt, wood, metals, roofing, paper, plastic, drywall, and glass. Sustainable development defines as accomplishing the current requirements without compromising the ability of future generations to satisfy their own needs and can be thought of as one of the concrete solutions to resolve construction and demolition waste downside. Sustainable development in construction can facilitate plenty to cut back the issues associated with the environment and natural resources as the construction industry is among the major user of the world’s resources. Sustainable design, correct use, and reuse of the resources/construction materials can create the construction industry a lot more economical and greener. There’s conjointly a large demand for natural aggregates within the construction sector with a big gap in its demand and supply, which may even be reduced marginally by the employment of recycling and reuse of construction and demolition waste. Correct handling, storage, and treatment of C&D waste not only solely forestall degradation of Mother Earth but even have an important impact on sustainability using reducing the usage of natural resources. The paper covers various issues associated with the reusing and recycling of C&D waste, which needs restrictive mechanisms and procedures to be followed for achieving the aim of sustainability in the construction industry.

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Duan, Huabo, et Jinhui Li. « Construction and demolition waste management : China’s lessons ». Waste Management & ; Research 34, n^o 5 (mai 2016) : 397–98. http://dx.doi.org/10.1177/0734242x16647603.

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Ragossnig, Arne M. « Construction and demolition waste – Major challenges ahead ! » Waste Management & ; Research : The Journal for a Sustainable Circular Economy 38, n^o 4 (11 mars 2020) : 345–46. http://dx.doi.org/10.1177/0734242x20910309.

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Ponnada, Markandeya Raju, et Kameswari P. « Construction and Demolition Waste Management – A Review ». International Journal of Advanced Science and Technology 84 (30 novembre 2015) : 19–46. http://dx.doi.org/10.14257/ijast.2015.84.03.

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Townsend, T. G., Y. Jang et L. G. Thurn. « Simulation of Construction and Demolition Waste Leachate ». Journal of Environmental Engineering 125, n^o 11 (novembre 1999) : 1071–81. http://dx.doi.org/10.1061/(asce)0733-9372(1999)125:11(1071).

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Vilventhan, Aneetha, VG Ram et S. Sugumaran. « Value stream mapping for identification and assessment of material waste in construction : A case study ». Waste Management & ; Research 37, n^o 8 (19 juin 2019) : 815–25. http://dx.doi.org/10.1177/0734242x19855429.

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Construction sites are plagued with numerous problems, such as improper planning and management, high amounts of waste generation and low awareness of waste reduction. Construction and demolition waste literature provides several best practises and prescriptive strategies that help minimise waste during construction. However, it lacks in the systematic identification and minimisation approach of all possibilities of waste. Therefore, studies focusing on principles and tools that help systematically analyse the inefficiencies of on-site processes leading to waste generation and philosophies addressing waste minimisation are necessary. As eliminating waste is one of the key lean principles, this article discusses the need and importance of integrating the lean construction with the construction and demolition waste management. This article aims to estimate and assess the causes of waste generation in a high-rise building construction through a case study in Chennai city (India) using value stream mapping, a key lean construction tool. Onsite monitoring and measurement were performed to quantify the amount of waste generated. A waste generation rate of 66.26 kg m−2 was identified, of which concrete, cement mortar and brick waste represented almost 90% of the total construction waste. Direct observation and interviews of site personnel were conducted to understand the causes of waste generation. A strategic framework has been proposed to improve construction and demolition waste minimisation depicting the synergy of combining lean construction principles with construction and demolition waste management strategies. The proposed framework helps in the systematic identification, assessment and minimisation of on-site construction waste generation.

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Paz, Diogo Henrique Fernandes da, Kalinny Patrícia Vaz Lafayette et Maria do Carmo Sobral. « GIS-based planning system for managing the flow of construction and demolition waste in Brazil ». Waste Management & ; Research : The Journal for a Sustainable Circular Economy 36, n^o 6 (18 mai 2018) : 541–49. http://dx.doi.org/10.1177/0734242x18772096.

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The objective of this article was to plan a network for municipal management of construction and demolition waste in Brazil with the assistance of a geographic information system, using the city of Recife as a case study. The methodology was carried out in three stages. The first was to map the illegal construction and demolition of waste disposal points across Recife and classify the waste according to its recyclability. In sequence, a method for indicating suitable areas for installation of voluntary delivery points, for small waste generators, are presented. Finally, a method for indicating suitable areas for the installation of trans-shipment and waste sorting areas, developed for large generators, is presented. The results show that a geographic information system is an essential tool in the planning of municipal construction and demolition waste management, in order to facilitate the spatial analysis and control the generation, sorting, collection, transportation, and final destination of construction and demolition waste, increasing the rate of recovery and recycling of materials.

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Angjusheva, Biljana, Vilma Ducman, Monika Fidancevska et Vojo Jovanov. « Optimizing process parameters of clay-based ceramics with addition of construction and demolition waste ». Advanced Technologies 10, n^o 2 (2021) : 61–65. http://dx.doi.org/10.5937/savteh2102061a.

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Construction and demolition waste produced in the Republic of North Macedonia remains a major economic and environmental problem because all construction and demolition waste ends up in local dumps or is disposed of in a landfill. The objective of this study was to investigate the influence of the process parameters on the physical and mechanical properties of clay-based ceramics with partial replacement of clay with construction and demolition waste. Determination of the chemical composition of the waste demolition brick using X-ray fluorescence showed that it consisted of different oxides such as SiO2, Al2O3, Fe2O3 and CaO and minor contents of alkaline and earth alkaline oxides. Production of these ceramics was conducted through the consolidation of clay and waste demolition brick with the evaluation of the main process parameters such as sintering temperature [ST], the content of waste demolition brick [WDB] and isothermal period at the final temperature [IP]. The final model equations for density and bending strength dependence of the main process parameters were obtained and presented. The microstructure of the ceramics determined by SEM shows that the waste material is homogeneously dispersed in the clay matrix.

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Dadhich, Itika, Kartika Panwar, Yagya Sharma et Mayank Dave. « Analysis of Construction and Demolition Waste and its Applications Based on Recent Studies ». International Journal of Advances in Agricultural Science and Technology 9, n^o 7 (30 juillet 2022) : 1–9. http://dx.doi.org/10.47856/ijaast.2022.v09i07.001.

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Construction and Demolition Waste C & D waste is becoming a havoc each coming day. According to government agencies like Building Material Promotion Council (BMPTC) and Centre for Fly Ash Research and Management (C-FARM) estimated 165 million tonnes from construction. Out of municipal solid waste approximately 15% to 20% of solid waste comes from construction and demolition projects. Centre of Science and Environment (CSE) says in their latest release analysis of the C&D waste management sector, titled Another Brick off the Wall, India manages to recover and recycle only about 1% of its construction and demolition (C&D) waste), as the official recycling capacity is a mere 6,500 tons per day (TPD)- just about 1%. In this paper, we will analyze the C & D waste management to maintain the sustainable approach.

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Almusawi, Mohammed Baqer Hasan, Ahmad Tarmizi Bin Abd Karim et Saleem Ethaib. « Evaluation of Construction and Demolition Waste Management in Kuwait ». Recycling 7, n^o 6 (24 novembre 2022) : 88. http://dx.doi.org/10.3390/recycling7060088.

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This research aimed to evaluate Kuwait’s current construction and demolition waste (C&D waste) situation by focusing on C&D waste generation and management issues. This work also investigated the causes and factors affecting C&D waste to understand the actual waste management activities and proposed strategies to minimize the waste generated at the local level. This study estimated C&D waste generation rates based on data collected from five construction projects and two demolition projects in Kuwait. In addition, a questionnaire survey was conducted to evaluate the causes of C&D waste generation. The results showed that the average C&D waste quantities generated by construction activities were 49.5 kg/m2 for public/commercial building projects and 35 kg/m2 for residential projects. At the same time, public/commercial construction, residential construction, and demolition works generated 1.480 ton/m2, 0.0495 ton/m2, and 0.035 ton/m2, respectively. The average composition of C&D waste from the construction sector was 35.4% concrete waste, followed by 19.2% tiles/blocks, and 14.2% metals, with the remainder being other materials. Meanwhile, the demolition waste was composed of 70% concrete and cement waste and 20% metals. The results showed that 54% of the projects disposed of their C&D waste directly in the landfills. The leading causes of C&D waste generation were reworks due to changes in specifications, poor material quality, improper material handling, and improper site management. Strategic C&D waste management practices are necessary for sustainable natural resource management and conservation of the environment.

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Sangiorgi, Cesare, Claudio Lantieri et Giulio Dondi. « Construction and demolition waste recycling : an application for road construction ». International Journal of Pavement Engineering 16, n^o 6 (30 juillet 2014) : 530–37. http://dx.doi.org/10.1080/10298436.2014.943134.

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Abdulnafaa, Mohammed, Ayman W. Aldabag et Hanan H. Alghyat. « Evaluation of Reuse of Demolition and Construction Waste in Geotechnical Engineering Works with A Case Study : Mosul City (Review)‎ ». Diyala Journal of Engineering Sciences 14, n^o 3 (1 septembre 2021) : 108–18. http://dx.doi.org/10.24237/djes.2021.14309.

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Demolition and construction waste are among the topics that focus by many researchers. The ‎methods of reuse of waste materials must reduce the economic and environmental pressure of their ‎presence in various regions. Before 2014, the city of Mosul contained relatively small quantities of ‎demolition and construction debris, especially concrete rubble, asphalt materials, and bricks (they formed ‎approximately 80% of the construction and demolition debris). These materials increased very greatly ‎after the liberation operations and the widespread destruction of large parts of the city and became a great ‎problem in the reconstruction operations. There is no clear plan yet in the city to deal with this debris, and it ‎is disposed of by moving them to another place or burying them randomly when rebuilding the destroyed ‎parts. This study shows to deal with demolition and construction debris in Mosul after liberation and during ‎reconstruction operations. Also, many sources and data dealing with the re-use of demolition and ‎construction debris in the field of geotechnical engineering for operations to improve the engineering ‎properties of soils are presented. Many papers show the possibility of using construction and demolition waste as an alternative base or sub-base materials, fill for embankments, or increase durability and reduce the swelling ‎and plasticity ‎of clay. The study concludes that the researches and data can be used to deal with ‎the rubble of demolition and construction in Mosul in a way that enables to benefit from it economically ‎and environmentally.‎

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Devlieger, Lionel, Maarten Gielen, Samuel Little, Arvind Roy et Aude Line Dulière. « Building and demolition waste in the UK ». Architectural Research Quarterly 23, n^o 1 (mars 2019) : 90–96. http://dx.doi.org/10.1017/s135913551900006x.

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Construction is by far the largest material-consuming activity in the UK. In 2016, the territory produced more than 800 kg of construction and demolition (C&D) waste per person.1 Most of these building materials are energy intensive to produce and environmentally costly to transport. Their premature replacement therefore contributes significantly to the increasing levels of greenhouse gases in the atmosphere.

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Kawamoto, Ken. « Environmentally-sound Management of Construction and Demolition Waste ». Material Cycles and Waste Management Research 31, n^o 1 (31 janvier 2020) : 44–50. http://dx.doi.org/10.3985/mcwmr.31.44.

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Ostyakova, A. V., et D. M. Mazurin. « Management of the waste of construction and demolition ». IOP Conference Series : Materials Science and Engineering 1030 (15 janvier 2021) : 012103. http://dx.doi.org/10.1088/1757-899x/1030/1/012103.

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Rigamonti, Lucia, Mohd Reza Esa et Anthony Halog. « Construction and Demolition Waste Management : A Conceptual Framework ». International Journal of Environment and Waste Management 1, n^o 1 (2023) : 1. http://dx.doi.org/10.1504/ijewm.2023.10050949.

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Rocha, Sabina, et Joana Sousa-Coutinho. « Construction and demolition waste as partial cement replacement ». Advances in Cement Research 31, n^o 9 (octobre 2019) : 411–22. http://dx.doi.org/10.1680/jadcr.16.00132.

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Coelho, André, et Jorge de Brito. « Generation of construction and demolition waste in Portugal ». Waste Management & ; Research 29, n^o 7 (27 juin 2011) : 739–50. http://dx.doi.org/10.1177/0734242x11402253.

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Paz, Diogo HF, et Kalinny PV Lafayette. « Forecasting of construction and demolition waste in Brazil ». Waste Management & ; Research 34, n^o 8 (11 juillet 2016) : 708–16. http://dx.doi.org/10.1177/0734242x16644680.

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Rouhi Broujeni, B., G. A. Omrani, R. Naghavi et S. S. Afraseyabi. « Construction and Demolition Waste Management (Tehran Case Study) ». Engineering, Technology & ; Applied Science Research 6, n^o 6 (18 décembre 2016) : 1249–52. http://dx.doi.org/10.48084/etasr.812.

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Increasing building construction raises concerns about construction and demolition (C&D) waste management. To assess this issue the building components, the collection schemes, their recycling and disposal should be investigated. In order to manage C&D wastes, paying attention to how this kind of wastes is disposed is imperative for their correct identification. Inattention, lack of organization and proper transport and sanitary disposal of construction and demolition waste lead to problems such as accumulation of construction waste in the streets. However, more than 90 percent of the potential for recycling and re-using as raw materials is provided. Environmental Protection Agency (EPA) has classified C&D wastes into three categories: non-dangerous waste, hazardous wastes and semi-hazardous wastes. Currently in Tehran, an average of about 50,000 tons per day of construction and demolition wastes are produced from which over 30,000 tons per day are dumped in landfills. According to this research more than 57% of these wastes are placed in the first category (non-dangerous waste) and have the potential for being recycled and reused. On the other hand, items that are placed in the second category shall be managed based on the existing laws. This article provides some management solutions including proposing methods for collecting and reusing construction waste in accordance with current market needs in Iran.

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