Статті в журналах: "Marble mining"

1

Khan, Majid Ali, Safi Ur Rehman, and Abdur Rahman. "Sustainability Analysis of Marble Sector in Buner." International Journal of Economic and Environmental Geology 10, no. 3 (November 13, 2019): 94–101. http://dx.doi.org/10.46660/ijeeg.vol10.iss3.2019.315.

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Marble is an ornamental stone, extremely popular for use as architectural and sculptural purposes. Nonrenewable marble resources in Khyber Pakhtunkhwa (KP), Pakistan are mostly mined by conventional mining methods(producing irregular shaped blocks) instead of using mechanized mining producing regular shaped blocks.Conventional mining methods are more economical but are less environment friendly due to more quantity of wasteproduced. While, mechanized marble mining has a better recovery, reduces mining cost (processing and transportation)and is less environmentally hazardous. In this study a situation and sustainability analysis of marble mining operationsat Buner, the most productive marble mining cluster in KP, Pakistan, is carried out. Buner has about 1.4 billion tons ofmarble resources and contributes around 51 percent of total country’s marble production. Analytical Hierarchy Process(AHP) is used on the basis of key sustainability factors (economic, technical, social, environmental and safety) forselection of most sustainable mining methods. The analysis revealed that conventional mining is least sustainable andproduces maximum waste, cracks, irregular shaped blocks, high working faces, back break, rock falls and accidents. Itwas concluded and recommended that these conventional mining methods should be replaced with the more sustainablemining methods i.e. semi-mechanized (controlled blasting / expansion material) at sunny grey and get black marbledeposits and mechanized mining (rope cutting) at Bampokha No.1 and Chagharzai white marble deposits.

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Khan, Majid Ali, Safi Ur Rehman, and Abdur Rahman. "Sustainability Analysis of Marble Sector in Buner." International Journal of Economic and Environmental Geology 10, no. 3 (November 13, 2019): 94–101. http://dx.doi.org/10.46660/ojs.v10i3.315.

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Marble is an ornamental stone, extremely popular for use as architectural and sculptural purposes. Nonrenewable marble resources in Khyber Pakhtunkhwa (KP), Pakistan are mostly mined by conventional mining methods(producing irregular shaped blocks) instead of using mechanized mining producing regular shaped blocks.Conventional mining methods are more economical but are less environment friendly due to more quantity of wasteproduced. While, mechanized marble mining has a better recovery, reduces mining cost (processing and transportation)and is less environmentally hazardous. In this study a situation and sustainability analysis of marble mining operationsat Buner, the most productive marble mining cluster in KP, Pakistan, is carried out. Buner has about 1.4 billion tons ofmarble resources and contributes around 51 percent of total country’s marble production. Analytical Hierarchy Process(AHP) is used on the basis of key sustainability factors (economic, technical, social, environmental and safety) forselection of most sustainable mining methods. The analysis revealed that conventional mining is least sustainable andproduces maximum waste, cracks, irregular shaped blocks, high working faces, back break, rock falls and accidents. Itwas concluded and recommended that these conventional mining methods should be replaced with the more sustainablemining methods i.e. semi-mechanized (controlled blasting / expansion material) at sunny grey and get black marbledeposits and mechanized mining (rope cutting) at Bampokha No.1 and Chagharzai white marble deposits.

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Koch-Moeck, Matthias, and Klaus Germann. "Geoscientific optimization of underground marble mining." Zeitschrift der Deutschen Gesellschaft für Geowissenschaften 158, no. 3 (September 1, 2007): 491–500. http://dx.doi.org/10.1127/1860-1804/2007/0158-0491.

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Khoiroh, Ummul. "Marble Dust Exposure Relationship to Workers‘ Lung Conditions in Marble Industries." JURNAL KESEHATAN LINGKUNGAN 12, no. 4 (October 30, 2020): 285. http://dx.doi.org/10.20473/jkl.v12i4.2020.285-291.

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Introduction: Marbel mining in Tulungagung caused air quality pollution of dust. The level of air pollution in the marble industrial mining area in Besole village, Tulungagung, was a high category. Air pollutions from dust cause fibrosis in the lungs if continuously inhaled. This marble dust belongs to the group of differentiative dust—pulmonary disorders due to dust in the form of restriction, obstruction, or mixture of the two. The study aims to analyze the internal factors related to lung conditions in one of the Besole Village industries, Tulungagung. Method: research that has been done using cross-sectional design through a quantitative approach. Determination of the sample size by simple random sampling. Twenty-four workers consisting of 12 exposed and 12 were not exposed to dust. Result and Discussion: The results of measurements of marble dust levels in the study area were 20,000 mg/m3, which exceeds the specified threshold value. Meanwhile, the statistical test value p= 0.000 means a relationship between dust levels and the condition of workers’ lungs in the exposed area. Most workers’ lung conditions in one of the Besole village industries are quite good. Conclusion: The condition of the lungs is closely related to dust levels that exceed the threshold value. The lungs’ condition is also influenced by work time and poor behavior, namely the habit of not wearing PPE and smoking habits, causing decreased lung function.

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Kore, Sudarshan Dattatraya, and Ashok Kumar Vyas. "Durability of concrete using marble mining waste." Journal of Building Materials and Structures 3, no. 2 (November 6, 2016): 55–67. http://dx.doi.org/10.34118/jbms.v3i2.24.

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The aim of the study was to study behavior of concrete containing marble mining waste under aggressive environment. Waste from marble mining and processing industries was used in concrete as coarse aggregate in combination with conventional coarse aggregate. The particle packing density approach was followed to design the concrete mix and 75% conventional coarse aggregate was replaced by aggregate obtained by crushing waste from marble mining waste. The water-cement ratio was fixed 0.45 for all the mixes. Properties of concrete under aggressive environment such as chloride ion penetration, resistance to sulphates were evaluated. The test results revealed that, resistance to chloride ion penetration and sulphate attack increased as compared to control concrete. Overall the results supported by microstructure analysis indicate that there is no significant adverse effect on the use of marble waste as a coarse aggregate on the durability properties of concrete. The results of fire study reveal that, concrete with marble waste performs better than control concrete up to a temperature of 800 ºC.

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Kore, Sudarshan Dattatraya, and A. K. Vyas. "Performance Evaluation of Concrete using Marble Mining Waste." Selected Scientific Papers - Journal of Civil Engineering 11, no. 2 (December 1, 2016): 53–66. http://dx.doi.org/10.1515/sspjce-2016-0018.

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Abstract A huge amount waste (approximately 60%) is generated during mining and processing in marble industries. Such waste can be best utilized in infrastructure development works. Coarse aggregate 75% by weight was replaced by aggregate obtained from marble mining waste. The impact of marble waste as a partial replacement for conventional coarse aggregate on the properties of concrete mixes such as workability, compressive strength, permeability, abrasion, etc. was evaluated. The test results revealed that the compressive strength was comparable to that of control concrete. Other properties such as workability of concrete increased, water absorption reduced by 17%, and resistance to abrasion was marginally increased by 2% as compared to that of control concrete. Ultrasonic pulse velocity and FTIR results show improvement in quality of concrete with crushed marble waste. From the TGA analysis it was confirmed that, aggregate produced from marble waste shows better performance under elevated temperature than that of conventional aggregates.

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VALIEV, N. G., I. N. SANDRIGAILO, S. A. AREFIEV, and S. I. CHEBOTAREV. "EVAL UA TION OF THE POSSIBILITY OF USING AND OPERA TING MODES OF SURFACE MINERS IN THE DEVELOPMENT OF MARBLE DEPOSITS." News of the Tula state university. Sciences of Earth 2, no. 1 (2020): 88–99. http://dx.doi.org/10.46689/2218-5194-2020-2-1-88-99.

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The results of evaluating the possibility of using surface miners for marble mining are presented. The operating experience of the surface miner Wirtgen 2500SM at the Koelginsky field is described. The main factors affecting the performance of the miner are established. Rational modes of operation of the surface miner during marble mining are determined. Dependencies are obtained for determining the performance of miners of different models for different schemes and modes of operation. It is proposed to use the miner Wirtgen 2500Vario with increased capacity and operating weight for marble mining.

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Meng, Xian Ce, Chen Li, Zhi Hong Wang, Xian Zheng Gong, Yu Liu, and Bo Xue Sun. "A Life Cycle Inventory Case Study for Marble Mining in China." Materials Science Forum 787 (April 2014): 171–75. http://dx.doi.org/10.4028/www.scientific.net/msf.787.171.

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The goal of this paper is to conduct a life cycle inventory (LCI) case study for marble mining in China. The scope focuses on the whole life of marble mining. The functional unit is “per cubic meter of marble block”. The LCI data, including the input of energy and natural resources and the output of pollutant emissions, were collected on-site. The LCI results show that if the waste quarries could be recovered after the exploration, the environmental damages from the marble decorative materials would be much less. The environmental impacts of fresh water consumptions are also discussed. Some suggestions and recommendations on how to improve the environmental performance, at the same time the marble materials can be produced to support the increasing sales, are made. In the future, the land use and the mine recovery should be discussed.

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Qanit, Prof Abdul Bari, Prof Khairuddin, Ziarahman Alem, Hamid Zaheer, Abdulhaq salih, Ahmad Faham Bawry, Safi Ullah, Sohaib Nadir, and UlfatUllah Noori. "Petrological, Geochemical and Mechanical Characteristics of Afghan White Marble." Scandic Journal Of Advanced Research And Reviews 3, no. 2 (October 20, 2022): 001–15. http://dx.doi.org/10.55966/sjarr.2022.3.2.0050.

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The aim of this article is to examine the Geological, Geochemical, Mineralogical, and Physical-Mechanical characteristic of Afghan White Marble deposit in Nangahar province Afghanistan. The objective of the article includes information about the value, quantity & quality of the marble mine. In addition, this study summarizes information related to the marble mining methods, Processing and production tools technologies used for extracting of Marble in Afghanistan. To achieve, the aim of the research, library, field and Laboratory methods have been used. The library result shows the general information related to Geology, Tectonic and Magmatic of the study areas. A fieldwork was conducted in the study area and appropriate measurements i.e. Geographical location and reserve estimation were taken and also 10 sample of marble were collected from the mine of Ghondy n Mamakhail for lab analyses. The collected samples were analyzed by using different analytical methods such as XRF, Electron polarizing microscope and mechanical tests such as compressive strength, specific gravity, absorption, and unit weight. ASTM standard is used to interpret and compare the results from the above mechanical analyses. The XRF and microscopic analyses show that the marble from Nangrhar Province Shirzad district Kodikhel have dolomite composition. The results from different mechanical and physical tests showed that these marbles have high consistency against any types of applied pressure, and have high value, which can be used in various construction’s affairs. In Summary, you need to focus on the results and interpretation of those analyses.

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Kun, Mete, Şeyda Topaloğlu, and Tahir Malli. "Evaluation of Wheel Loaders in Open Pit Marble Quarrying by Using the AHP and Topsis Approaches / Ocena pracy ładowarki na podwoziu kołowym w odkrywkowej kopalni marmuru w oparciu o metody AHP i topsis." Archives of Mining Sciences 58, no. 1 (March 1, 2013): 255–67. http://dx.doi.org/10.2478/amsc-2013-0018.

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The marble mining in Turkey has been rising since the early 80’s. In relation to that, the marble income has become noticeably bigger than those of other mining sectors. In recent years, marble and natural stone export composes half of the total mine export with a value of two billion dollars. This rapid development observed in marble operation has increased the importance of mining economics, income-expenditure balance and cost analysis. The most important cost elements observed in marble quarrying are machinery and equipment, labor costs and geological structures of the field. The aim of this study is to is to propose a multi-criteria decision making (MCDM) approach to evaluate the wheel loader alternatives and select the best loader under multiple criteria. A two-step methodology based on two MCDM methods, which are namely the Analytic Hierarchy Process (AHP) and the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS), are used in the evaluation procedure. More precisely, AHP is applied to determine the relative weights of evaluation criteria and TOPSIS is applied to rank the wheel loader alternatives. The proposed approach also provides a relatively simple and very well suited decision making tool for this type of decision making problems.

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11

Pine, R. J., E. Berger, R. D. Hammett, and E. Artigiani. "Vipiteno mine, Italy – underground mining for marble." Mining Technology 113, no. 3 (September 2004): 142–52. http://dx.doi.org/10.1179/037178404225006146.

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12

Hu, Gaojian, and Tianhong Yang. "Optimum Selection of Mining Plans for Pillars Containing Interlayers Based on Numerical Simulation." Mathematical Problems in Engineering 2022 (March 22, 2022): 1–15. http://dx.doi.org/10.1155/2022/7440941.

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A reasonable selection of the pillar mining plan is the key to ensure smooth mining in the goaf group, which plays an important part in safe production. In formulating and optimizing the pillar mining plan, the influence of the ground pressure evolution law should be fully considered. This paper first introduces two mining plans for pillars, and then, numerical simulations were used to analyze the two mining plans from four perspectives such as stress evolution law, stress concentration degree, force state of pillars, and weak marble layers. The results show that the mining plan 1 that retreats from the middle of the ore body to the two wings is the optimal as it can realize sequential mining in high-stress concentration areas at the middle section. This effectively alleviates the stress on the surrounding rock during mining and will not aggravate the collapse of the marble-interbedded area.

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Lopes, Luís, Ruben Martins, Patrícia Falé, João Passos, Francisco Bilou, Manuel Branco, and Manuel Francisco Pereira. "Development of a Tourist Route around the Mining Heritage of the Estremoz Anticline." Key Engineering Materials 548 (April 2013): 348–62. http://dx.doi.org/10.4028/www.scientific.net/kem.548.348.

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The areas of the counties of Estremoz, Borba and Vila Viçosa, traditionally and since ancient times, have been a major region for extraction of marbles for use as a dimension stone in Portugal. The geological evolution of the Iberian Peninsula allowed the formation, in Alto Alentejo, of one of the World’s most important and famous marble deposits. The Estremoz Anticline, about 42 km long and 8 km in maximum width, is an impressive place where the strength and ingenuity of Man has been used for decades to turn the “land upside down”. The 27 km2 where the marble is concentrated is a place with a high density of quarries that have an unavoidable environmental impact, leaving stone exposed or accumulated in large tips, side-by-side with the Alentejo plains of wheat fields and olive trees. It is impossible to fully rehabilitate this area either for economic or strategic reasons, but it can be considered as resource for the promotion and development of industrial and scientific tourism and artistic and cultural events. A survey of the assets of the region has been undertaken and a wide variety of organizations and the industry are collaborating in planning a route and activities for the region.

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ÇINAR, Nihat Çağıl, and Ebru Vesile ÖCALIR AKÜNAL. "A Reclamation Model for Post-Mining Marble Quarries." GAZI UNIVERSITY JOURNAL OF SCIENCE 32, no. 3 (September 1, 2019): 757–74. http://dx.doi.org/10.35378/gujs.475391.

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Setiyabudi, Erick, Agus Trihascaryo, Tutik Koesbarditi, Rusyad Adi Suriyanto, and Delta Bayu Murti. "Geoconservation of Vertebrate and Human Ancient Fossils Site, The South TulungagungArea East Java." Jurnal Geologi dan Sumberdaya Mineral 20, no. 4 (November 5, 2019): 187. http://dx.doi.org/10.33332/jgsm.geologi.v20i4.453.

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The paleontology and archeology sites in southern Tulungagung, East Java are part of the geodiversity and geological heritage that has significance for the process of evolution and migration of early modern humans. The sites are Wajak Cave, Song Gentong, and Tenggar Cave (Late Pleistocene to Early Holocene) located in the marble and limestone ornaments mining area of the Campurdarat Formation. Geoconservation of the geological heritage continues to be carried out by research or excavation in these fossil sites to reveal the past life and paleoenvironment, where the fossil site is susceptible to the threat of damage due to surrounded mining activities.Keyword: Wajak Cave, Song Gentong, Tenggar Cave, limestone, marble, Campurdarat Formation.

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Rathore, Kamod Kanwar, and Suraj Kumar Singh. "Ground Water Quality Assessment of Marble Mining Areas in Rajsamand District, Rajasthan, India." Current World Environment 16, no. 2 (August 30, 2021): 551–62. http://dx.doi.org/10.12944/cwe.16.2.20.

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The present study represents the impact of marble mining and processing units on the quality of ground water in the Rajasamand district of Rajasthan state. For this work various water sampleswere collected from surrounding areas of the mining hub covering all the tehsil namely- Rajasmand, Amet, Bhim, Deogarh, Khamnor,Kumbhalgarh, and RailmangraofRajasamd district. The sample were analysed for various Physio- chemical parameters like-Electrical Conductivity(EC), pH, Total Hardness (TH), Dissolved Solids-Total (TDS), Sodium (Na+1) Potassium(K+1), Calcium (Ca+2), Magnesium (Mg+2), Chloride (Cl-1), Sulphate (SO4-2), Carbonate (CO3-2 ), Bicarbonate (HCO32), Nitrate(NO3-1) , Fluoride (F), the result of water quality parameters was compared with IS:10500-2012 drinking water specification. The finding of results indicates that the level of the certain parameters like TDS, TH, Ca, Mg, Na, K, Cl, NO3, andF exceed the limits of ground water stipulated by Bureau of Indian Standards (BIS). As per the observations, we must say that it may be possible that one of the egregious sourcesto polluting ground water in the region is marble mining and its allied activities. The present study is based on the sample collected and tested in the laboratory and it is an attempt to determine the physio- chemical characteristics of ground water in the marble mining area of the Rajasamand district in Rajasthan state of India.

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D Kore, Sudarshan. "Performance of Concrete Mixes Using Marble Waste and ISF Slag." Open Access Journal of Waste Management & Xenobiotics 3, no. 2 (2020): 1–5. http://dx.doi.org/10.23880/oajwx-16000139.

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A high volume of marble production generate a considerable amount of waste in the form of odd sizes of stones and slurry during the mining, processing and polishing stages that has a serious impact on the environment. Imperial Smelting Furnace (ISF) slag is a waste generated in the primary extraction of zinc by a pyro metallurgical process with a granular texture. The main goal of this study is utilization of marble mining waste as a partial replacement for conventional coarse aggregate and ISF slag as a partial replacement for sand in concrete mixes. The concrete mixes were designed by using particle packing density approach with a constant water/cement ratio 0.5. In this study the natural coarse aggregate was replaced by 75% marble aggregate and natural sand was replaced by 40% ISF slag by weight. The results of the study show that, the mechanical and durability properties of concrete mixes using these wastes did not have significant adverse impact on properties of concrete.

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Shekov, Vitali Alexandrovich. "Natural risks and monitoring systems: Case study of the mining-industrial heritage objects of Karelia (Ruskeala Mining Park), Russia." Vestnik MGTU 24, no. 2 (June 30, 2021): 214–27. http://dx.doi.org/10.21443/1560-9278-2021-24-2-214-227.

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Mine workings (open and underground) abandoned during the production process become part of the environment. These objects begin to degrade in accordance with ordinary processes occurring in nature. However, such developments are often of historical value and therefore become tourist sites. They pose a serious threat to the health and life of people visiting these tourist sites, if such workings were not initially processed to safe conditions. The paper considers an example of such an object - a marble quarry with elements of underground caves - the Ruskeala marble deposit, located in Karelia. In the middle of the XX century, it was abandoned, today the "Main" quarry is a monument of the historical and cultural (mining-industrial) heritage of the Republic of Karelia. Ruskeala Mining Park has collected all the risks of degradation inherent in such a natural site. The paper has proposed solutions for monitoring the sustainability of underground objects used as museum exhibits to ensure the safety of tourists visiting them.

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Margueron, Claudio, and Cristiane Mendes Coelho. "Diagnóstico técnico-económico e plano de ação para o setor de rochas ornamentais no estado do Rio de Janeiro." Anuário do Instituto de Geociências 20 (January 1, 1997): 181–200. http://dx.doi.org/10.11137/1997_0_181-200.

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This article initially undertakes a diagnostic study of the Marble and Granite Industry in Brazil and in Rio de Janeiro State. It shows the main uses for marble and granite and describes the key problems faced by this mining-mineral bencficiation sector in Brazil and Rio de Janeiro: production, institutional, roads and ports infrastructure, low value of exports, Italian Cartel, knowledge of distribution channels, market requirements and technology. It also describes in detail the geographic location, reserves and production of marble and granite in the state of Rio de Janeiro and the export-import situation for Brazil and for Rio de Janeiro State. Finally in its conclusions this article presents an ACTION PLAN for the Marble and Granite Sector of the state of Rio dc Janeiro economy.

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Quagliati, Noemi. "Beyond the Whiteness." Sophia Journal 7, no. 1 (December 15, 2022): 25. http://dx.doi.org/10.24840/2183-8976_2022-0007_0001_4.

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Saverio Salvioni, Cava di Ravaccione, 1810–1813 (Source: Archivio di Stato Massa e Pontremoli) Marble extraction in the Italian Apuan Alps has been known since Roman times, and its historical importance is symbolized by masterpieces of Western art history. However, the Carrara marble industry has recently received harsh criticism for operating in the protected area of the Apuan Alps Regional Park, recognized by UNESCO since 2015. Environmental and social concerns about mining have arisen from the extreme acceleration of all the productive phases of the extractive industry. From the mid-twentieth century, the exploitation of geological deposits of marble grew exponentially thanks to the development of powerful extraction technologies and a global export economy that creates only relatively few occupations in Carrara. Within this context, photographic and cinematographic projects have increasingly focused on the environmental risks created by the marble mining industry. This article shows how visual representations of Carrara have changed in recent years via an analysis of three case studies: the internationally acclaimed documentary Anthropocene: The Human Epoch (2018), the climbing project and Italian short film Carie (Cavity 2019), and Lorenzo Shoubridge’s naturalistic photographs in Apuane: terre selvagge (Apuan Wildlands 2018). These case studies offer an innovative perspective on the landscapes of marble extraction. Previously, these landscapes were represented following other visual trends emphasizing the technological sublime found in the geometric shapes of the white quarries, the working conditions of marble laborers, and the myth of the purity of marble used in artistic sculptures. The three examples analyzed in this paper attempt to go ‘beyond the whiteness’ by focusing on the scale of environmental destruction (Anthropocene: The Human Epoch), the more-thanhuman perspective (Apuane terre selvagge), and the social struggle for preserving a mountain region through creative solutions (Carie). In other words, new aesthetic and ethical sensibilities are challenging established twentieth-century narratives of the Carrara marble quarries by focusing on a new element: the environment.

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Chaanda, Mohammed Suleiman, Ovie Izeze, and Igbinosa Temple Osaze. "Environmental Geochemistry of Igarra Marble Mining District, Southwestern Nigeria." Journal of Environmental Protection 10, no. 06 (2019): 722–37. http://dx.doi.org/10.4236/jep.2019.106043.

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Sonwane, Rajiv, Pushpendra Kumar Kushwaha, and Jiji M. Thomas. "Study of the Compressive Strength of Concrete Using Marble, Granite and Recycled Aggregates with Polypropylene Fiber." SMART MOVES JOURNAL IJOSCIENCE 5, no. 12 (December 12, 2019): 7–11. http://dx.doi.org/10.24113/ijoscience.v5i12.242.

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Marble Industry produces large amount of waste during mining and processing stages. This waste is dumped on to open land which creates a lot of environmental problems We get recycle aggregate from the old dumped structures and buildings. The main objective of this study was utilization of marble, granite and recycled aggregate waste with polypropylene fiber as a replacement for conventional natural coarse aggregates in concrete. Experimental investigations were carried out to examine the feasibility of use of marble, granite and recycled aggregates waste as coarse aggregates in concrete. Conventional natural coarse aggregates was fully replacement by marble in different percentages 0-60% , granite 0-30% and recycle aggregates 0-40% with polypropylene fiber less than 1% by weight. The concrete formulations were prepared with a constant water.

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Sonwane, Rajiv, Pushpendra Kumar Kushwaha, and Jiji M. Thomas. "Study of the Compressive Strength of Concrete Using Marble, Granite and Recycled Aggregates with Polypropylene Fiber." SMART MOVES JOURNAL IJOSCIENCE 5, no. 6 (December 12, 2019): 6. http://dx.doi.org/10.24113/ijo-science.v5i6.242.

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Marble Industry produces large amount of waste during mining and processing stages. This waste is dumped on to open land which creates a lot of environmental problems We get recycle aggregate from the old dumped structures and buildings. The main objective of this study was utilization of marble, granite and recycled aggregate waste with polypropylene fiber as a replacement for conventional natural coarse aggregates in concrete. Experimental investigations were carried out to examine the feasibility of use of marble, granite and recycled aggregates waste as coarse aggregates in concrete. Conventional natural coarse aggregates was fully replacement by marble in different percentages 0-60% , granite 0-30% and recycle aggregates 0-40% with polypropylene fiber less than 1% by weight. The concrete formulations were prepared with a constant water.

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Sonwane, Rajiv, Pushpendra Kumar Kushwaha, and Jiji M. Thomas. "Study of the Compressive Strength of Concrete Using Marble, Granite and Recycled Aggregates with Polypropylene Fiber." SMART MOVES JOURNAL IJOSCIENCE 5, no. 12 (December 12, 2019): 7–11. http://dx.doi.org/10.24113/ijoscience.v5i6.242.

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Marble Industry produces large amount of waste during mining and processing stages. This waste is dumped on to open land which creates a lot of environmental problems We get recycle aggregate from the old dumped structures and buildings. The main objective of this study was utilization of marble, granite and recycled aggregate waste with polypropylene fiber as a replacement for conventional natural coarse aggregates in concrete. Experimental investigations were carried out to examine the feasibility of use of marble, granite and recycled aggregates waste as coarse aggregates in concrete. Conventional natural coarse aggregates was fully replacement by marble in different percentages 0-60% , granite 0-30% and recycle aggregates 0-40% with polypropylene fiber less than 1% by weight. The concrete formulations were prepared with a constant water.

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Jeengar, Rohit. "Experimental Study on Partial Replacement of Natural Coarse Aggregate with Marble Waste Aggregate in Concrete." International Journal for Research in Applied Science and Engineering Technology 10, no. 10 (October 31, 2022): 1155–60. http://dx.doi.org/10.22214/ijraset.2022.47144.

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Abstract: Marble waste is produced from marble industries as a result of production. More production equals more waste, more waste creates environmental contamination. A high volume of marble production has generated a considerable amount of waste materials; almost 70% of the minerals gets wasted in the mining, processing and polishing stages which have a serious impact on the environment. Also, a large amount of marble is accumulating in the environment due to demolition of old structures having marble. This causes environmental pollution. An economically viable solution to this problem should include utilization of these waste materials for new products especially in construction applications which in turn minimizes the heavy burden on the nation’s landfills, saves natural resources, energy and reduces environmental pollution. Present study work is concerned with studying the feasibility of partial replacement of coarse aggregates with marble waste. Varying percentages of replacement is considered 0%, 10%, 20%, 30%, 40% and 50% by natural aggregate, From the results of current experimental study, it is concluded that Compressive strength of the concrete cubes at 7 and 28 days shows 29.87 and 41.89 N/mm2 till 40% marble waste coarse aggregate used as replacement of coarse aggregate in concrete. Hence the marble waste coarse aggregates can be used in concrete works up to as 40 % replacement.

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Uhlemann, Sebastian, Jonathan Chambers, W. Falck, Avelino Tirado Alonso, José Fernández González, and Antonio Espín de Gea. "Applying Electrical Resistivity Tomography in Ornamental Stone Mining: Challenges and Solutions." Minerals 8, no. 11 (October 27, 2018): 491. http://dx.doi.org/10.3390/min8110491.

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In this study, the use of electrical resistivity tomography (ERT) as a tool to guide ornamental stone extraction is investigated. ERT is not conventionally used in highly resistive environments, such as on rock faces, due to the high contact resistances that can impede current injection. Here, the challenges of conducting ERT in such environments are discussed and possible solutions suggested. For this, an example of the application of ERT in a deep and narrow marble quarry is used. The marble deposit is affected by fracturing and karstification. Due to the nature of these features, they present a significant resistivity contrast to the background resistivity of the marble and thus excellent targets to test the application of ERT. Their location was mapped using field observations and complementary ground penetrating radar data. By using an appropriate sensor deployment, a suitable resistivity meter, and advanced data processing routines, the derived 3D resistivity model is in good agreement with the independent observations. This shows that despite the challenges, ERT can be used as a non-invasive tool to obtain information on the stone properties prior to extraction. This will help in guiding quarry operations and will allow for a targeted, safe and efficient extraction of high quality stone, thereby increasing sustainability and economical competitiveness.

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Sonwane, Rajiv, Pushpendra Kumar Kushwaha, and Jiji M. Thomas. "Review on The Production Of Concrete By Using Waste Coarse Material." IJOSTHE 6, no. 6 (December 11, 2019): 3. http://dx.doi.org/10.24113/ojssports.v6i6.111.

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Marble Industry produces large amount of waste during mining and processing stages. This waste is dumped on to open land which creates a lot of environmental problems. Similarly granite is also produced in the same manner in great amount. We get recycle aggregate from the old dumped structures and buildings. the main objective of this study was utilization of marble, granite and recycled aggregate waste with polypropylene fiber as a replacement for conventional natural coarse aggregates in concrete.

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Yavuz, Mahmut, and Secil Ozer Colpan. "Plant Location Selection in Natural Stone Industry." Key Engineering Materials 548 (April 2013): 371–78. http://dx.doi.org/10.4028/www.scientific.net/kem.548.371.

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Determining the most convenient plant location is one of the commonly encountered problems in engineering applications. This paper presents an Analytic Hierarchy Process (AHP) model, which is developed for selecting the optimum plant location for marble/travertine factories in natural stones processing industry. The whole criteria which affect the decision making process in marble industry were determined to solve plant location problem in the AHP model. To determine optimum marble plant location for a new marble factory, which is planned to install by a mining firm located in the Eskisehir region in Turkey, an analysis was carried out by introducing the AHP method which is one of the well-known classical Multiple Attribute Decision Making (MADM) methods. This analysis shows that the AHP method can successfully be applied for the selection of plant location as well as any decision making process in natural stone industry.

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Purwanto, Purwanto. "Peningkatan Kestabilan Pilar Tambang Bawah Tanah Marmer di PT Gunung Marmer Raya." JURNAL TEPAT : Applied Technology Journal for Community Engagement and Services 3, no. 1 (June 30, 2020): 27–38. http://dx.doi.org/10.25042/jurnal_tepat.v3i1.79.

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PT Gunung Marmer Raya (PT GMR), a room and pillar underground marble mining is located about 73 km to the north from Makassar, in Desa Tabo-Tabo, Kecamatan Bungoro, Kabupaten Pangkep. In the mining location, discontinuities are found as joint structure across the production area. The purpose of this service is to make pillar redesign that can improve the stability of underground mine. These activities start with field observation, determining the rock characteristic through sample testing in the laboratory, classifying the rock mass using Q-system method, up to redesigning a form of implementation to increase the stability of the marble underground mine. According to calculation of rock mass classification using Q-System, the recommended buffering is systematic bolting and fiber reinforced sprayed concrete as thick as 5-6 cm with spacing between bolts of 2.2 meters, or systematic bolting without concrete layering with spacing between-bolt 1.8 meter. Joint monitoring, especially on pillars, need to be done routinely so joint movement could be anticipated for progressive movement. The existing dimensions of pillar 5 m x 5 m in length and width is not recommended due to the safety factor is under 1,0 (unstable condition). Based on observation and analytic calculation, for each pillar height of up to 11 meters the pillar is recommended to redesign with length and width 5 m x 9 m for the chain pillar (safety factor around 1.35-1.49); and 5 m x 12 m for barrier pillars (safety factor around 1.58-1.74). Key Words: Underground mining; room and pillar method; Q-system classification system; pillar stability; marble mining.

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Kosolapov, A. I., and M. Yu Kaderov. "APPLICATION OF HYBRID MINING TECHNOLOGY AT MARBLE DEPOSITS IN RUSSIA." MINING INFORMATIONAL AND ANALYTICAL BULLETIN 2 (2018): 27–33. http://dx.doi.org/10.25018/0236-1493-2018-2-0-27-33.

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Iqbal, Qaiser, Muhammad Ali Musarat, Najeeb Ullah, Wesam Salah Alaloul, Muhammad Babar Ali Rabbani, Wesam Al Madhoun, and Shahid Iqbal. "Marble Dust Effect on the Air Quality: An Environmental Assessment Approach." Sustainability 14, no. 7 (March 24, 2022): 3831. http://dx.doi.org/10.3390/su14073831.

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All over the world, increasing anthropogenic activities, industrialization, and urbanization have intensified the emissions of various pollutants that cause air pollution. Marble quarries in Pakistan are abundant and there is a plethora of small- and large-scale industries, including mining and marble-based industries. The air pollution caused by the dust generated in the process of crushing and extracting marble can cause serious problems to the general physiological functions of plants and it affects human life as well. Therefore, the objectives of this study were to assess the air quality of areas with marble factories and areas without marble factories, where the concentration of particulate matter in terms of total suspended particles (TSP) was determined. For this purpose, EPAM-5000 equipment was used to measure the particulate levels. Besides this, a spectrophotometer was used to analyze the presence of PM2.5 and PM10 in the chemical composition of marble dust. It was observed that the TSP concentrations in Darmangi and Malagori areas of Peshawar, Pakistan—having marble factories—were 626 µg/m3 and 5321 µg/m3 respectively. The (PM2.5, PM10) concentration in Darmangi was (189 µg/m3, 520 µg/m3) and in Malagori, it was recorded as (195 µg/m3, 631 µg/m3), which was significantly higher than the non-marble dust areas and also exceeded WHO recommended standards. It was concluded that the areas with the marble factories were more susceptible to air pollution as the concentration of TSP was significantly higher than the recommended TSP levels. It is recommended that marble factories should be shifted away from residential areas along with strict enforcement. People should be instructed to use protective equipment and waste management should be ensured along with control mechanisms to monitor particulate levels.

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Wang, Jianguo, Lugang Lei, Yang Liu, Yang Yang, and Yonghui Huang. "Fracture Fractal and Energy Transfer Characteristics of Deep-Mine Marble under an Impact Load." Minerals 13, no. 2 (February 15, 2023): 275. http://dx.doi.org/10.3390/min13020275.

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With changes in mining depth, the dynamic mechanical characteristics of the same type of rock also change, so that the blasting excavation process must be constantly adjusted and optimized to meet the requirements of safe and efficient mining. To study the energy evolution law and fractal characteristics of deep marble during the destruction process, dynamic impact tests under different strain rates were carried out on a deep marble sample using the three-axis dynamic combination Hopkinson pressure bar system. The experimental results show that the larger the incident energy is, the more energy is transmitted. The proportion of absorbed energy does not increase with the increase in the incident energy. Only 30%–38% of the incident energy is absorbed by the impacted rock. With an increase in the strain rate, the energy consumption density gradually increases, the fragmentation degree is intensified, the fractal dimension gradually increases, and the failure mode changes from compression–shear failure to crushing failure.

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Martins, Ruben Varela, Luís Lopes, Luís Brito da Luz, David Germano, and José Patrício. "Marble Museum of Vila Viçosa, Portugal - A Mirror of Geological and Mining Heritage." Key Engineering Materials 848 (June 2020): 87–100. http://dx.doi.org/10.4028/www.scientific.net/kem.848.87.

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Raquel de Castro Marble’s Museum was built in an old quarry of ornamental marble located in one of the entrances of Vila Viçosa, Alto Alentejo – Portugal. It’s a space intended to preserve all the knowledge acquired over decades of exploitation and processing of the Worldwide know stone Estremoz Marble, regionally called "White Gold”. The name of the museum, Raquel de Castro is due to the former owner of the quarry that donated in life the space to the Town Hall of Vila Viçosa. The importance of this industry to the region's economy has profoundly affected the lives of its people and is always strongly linked to the natural stone sector. The contents arranged logically and sequentially, guide the visitor in the most varied aspects, from the geological, historical, technological, environmental and social framework. All the themes are approached in a scientific and practical way, making the museum an area of knowledge and culture constituting a portrait where the populations and industrialists of the region can be reviewed.

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Pérez-Castillo, Ricardo, José A. Cruz-Lemus, Ignacio García-Rodríguez de Guzmán, and Mario Piattini. "A family of case studies on business process mining using MARBLE." Journal of Systems and Software 85, no. 6 (June 2012): 1370–85. http://dx.doi.org/10.1016/j.jss.2012.01.022.

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Salvini, Riccardo, Andrea Ermini, Vivien De Lucia, Luisa Beltramone, Daniele Silvestri, Andrea Rindinella, Stefano Guido, Daria Marchetti, and Domenico Gullì. "Stress–Strain Investigation of the Rock Mass Based on Overcoring with CSIRO HI Cell Test and Numerical Modeling: A Case Study from an Italian Underground Marble Quarry." Geosciences 12, no. 12 (November 30, 2022): 441. http://dx.doi.org/10.3390/geosciences12120441.

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The present research illustrates the application of a methodological approach to studying the stress–strain distribution in a marble quarry of the Apuan Alps mining area (Italy). This study has been carried out in the framework of a project involving the University of Siena and the UOC Ingegneria Mineraria—USL Toscana Nord-Ovest, Tuscany Region. This stress–strain analysis aims foremost to monitor the slope stability conditions to guarantee a safe workplace for the personnel involved in mining activities, and to enable more sustainable long-term planning for excavation and production. The involved survey activities are as follows: (i) terrestrial laser scanning; (ii) engineering–geological data mapping; and (iii) in situ marble stress measuring through four CSIRO-type cell tests executed in different locations and at various depths within the underground excavation walls. The gathered data converged into numerical models of the quarry, both in 2D (DEM) and 3D (FEM), calibrated by in situ stress results through a rigorous back analysis assessment using least squares procedures. The created models represent a valuable tool for the identification and securing of risk areas and for future excavation planning in respect of the site efficiency and safety.

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Voudouris, Panagiotis, Vasilios Melfos, Constantinos Mavrogonatos, Adonis Photiades, Eugenia Moraiti, Branko Rieck, Uwe Kolitsch, et al. "The Lavrion Mines: A Unique Site of Geological and Mineralogical Heritage." Minerals 11, no. 1 (January 14, 2021): 76. http://dx.doi.org/10.3390/min11010076.

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The Lavrion area corresponds to the western part of the Attic-Cycladic metamorphic belt, in the back-arc region of the active Hellenic subduction zone. Between the Eocene and the Miocene, metamorphic rocks (mainly marbles and schists) underwent several stages of metamorphism and deformation due to collision and collapse of the Cycladic belt. Exhumation during the Miocene was accommodated by the movement of a large-scale detachment fault system, which also enhanced emplacement of magmatic rocks, leading to the formation of the famous Lavrion silver deposits. The area around the mines shows the stacking of nappes, with ore deposition mainly localized within the marbles, at marble-schist contacts, below, within, or above the detachment. The Lavrion deposit comprises five genetically-related but different styles of mineralization, a feature never observed in another ore deposit elsewhere, containing the highest number of different elements of any known mining district. The local geology, tectonic, and magmatic activity were fundamental factors in determining how and when the mineralization formed. Other key factors, such as the rise and the fall of sea level, which resulted from climate change over the last million years, were also of major importance for the subsequent surface oxidation at Lavrion that created an unmatched diversity of secondary minerals. As a result, the Lavrion deposit contains 638 minerals of which Lavrion is type-locality for 23 of them, which is nearly 12% of all known species. Apart from being famous for its silver exploitation, this mining district contains more minerals than any other district on Earth. The unique geological, mineralogical, and educational (mining, archaeological, and environmental) features suggest that it is highly suitable to be developed as a future UNESCO Global Geopark.

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Koster, Benjamin, and Frigga Kruse. "The use of ground penetrating radar (GPR) in the investigation of historical quarry abandonment in Svalbard." Polar Record 52, no. 3 (January 20, 2016): 330–44. http://dx.doi.org/10.1017/s0032247415000844.

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ABSTRACTThis paper investigates historical quarry abandonment in Spitsbergen, Svalbard. A short-lived British marble quarry in Kongsfjorden lay deserted after 1920. We ask why this attempt at the large-scale development of Arctic marble was unproductive; whether there are structural features that affected the known historical trenches and boreholes; and whether the reason for abandonment was primarily geological. During interdisciplinary fieldwork rooted in industrial archaeology and structural geology, we employed medium-resolution ground penetration radar (GPR) to discern subsurface disturbances near the workings. Seven survey grids gave rise to both areas of fracturing and folding as well as areas of sound marble. Using complementary historical documents, we are able to dispel the myths that permafrost or shattered surface rock affected workability and profitability. Although structural disturbances were present, bedrock geology was, in fact, less important than the proportion of waste rock to marketable product. Whether a product was marketable depended on a multitude of other factors. This paper moves away from oversimplified reasoning in mining history and promotes the bridging of geological and historical scales in order to understand the full suite of local and global driving forces in the historical process.

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Salvini, Riccardo, Giovanni Mastrorocco, Giuseppe Esposito, Silvia Di Bartolo, John Coggan, and Claudio Vanneschi. "Use of a remotely piloted aircraft system for hazard assessment in a rocky mining area (Lucca, Italy)." Natural Hazards and Earth System Sciences 18, no. 1 (January 19, 2018): 287–302. http://dx.doi.org/10.5194/nhess-18-287-2018.

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Abstract. The use of remote sensing techniques is now common practice in different working environments, including engineering geology. Moreover, in recent years the development of structure from motion (SfM) methods, together with rapid technological improvement, has allowed the widespread use of cost-effective remotely piloted aircraft systems (RPAS) for acquiring detailed and accurate geometrical information even in evolving environments, such as mining contexts. Indeed, the acquisition of remotely sensed data from hazardous areas provides accurate 3-D models and high-resolution orthophotos minimizing the risk for operators. The quality and quantity of the data obtainable from RPAS surveys can then be used for inspection of mining areas, audit of mining design, rock mass characterizations, stability analysis investigations and monitoring activities. Despite the widespread use of RPAS, its potential and limitations still have to be fully understood.In this paper a case study is shown where a RPAS was used for the engineering geological investigation of a closed marble mine area in Italy; direct ground-based techniques could not be applied for safety reasons. In view of the re-activation of mining operations, high-resolution images taken from different positions and heights were acquired and processed using SfM techniques to obtain an accurate and detailed 3-D model of the area. The geometrical and radiometrical information was subsequently used for a deterministic rock mass characterization, which led to the identification of two large marble blocks that pose a potential significant hazard issue for the future workforce. A preliminary stability analysis, with a focus on investigating the contribution of potential rock bridges, was then performed in order to demonstrate the potential use of RPAS information in engineering geological contexts for geohazard identification, awareness and reduction.

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Haslindah, Andi, Ilham Idrus, Try Agung Basuki, and Sultan Saiful. "PROSES PENGELOLAAN LIMBAH MARMER MENJADI PRODUK PAVING BLOCK." Journal Industrial Engineering and Management (JUST-ME) 1, no. 01 (June 22, 2020): 1–5. http://dx.doi.org/10.47398/justme.v1i01.1.

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Kabupaten Pangkep merupakan salah satu daerah penghasil marmer di Indonesia, pada proses penambangannya marmer digunakan untuk kebutuhan furniture dan lain sebagainya sehingga pada prosesnya menghasilkan limbah. Pemanfaatan limbah potongan marmer dapat meminimalisir jumlah tumpukan limbah yang dapat mencemari kesuburan tanah dan lingkungan. Tujuan penelitian ini Untuk mengetahui pembuatan produk paving block dan hasil uji kuat tekan dengan memanfaatkan limbah marmer. Dengan menggunakan rumus uji kuat tekan untuk mengetahui nilai MPanya apakah produk memenuhi standar SNI 03-0691-1996 pada uji kuat tekannya. Hasil dari penelitian ini Paving block yang memanfaatkan limbah marmer dari bentuk fisiknya mempunyai tampilan yang lebih menarik dengan adanya tambahan aksen marmer pada permukaannya dan juga sebagai tulangan, dalam proses pengujian ini paving yang memanfaatkan limbah memiliki nilai tertingginya 30,36 MPa masuk dalam standar SNI 03-0691-1996 mutu B. Kesimpulannya pemanfaatan limbah marmer menjadi produk paving block memiliki pengaruh besar terhadap hasil penguji kuat tekannya dikarenakan limbah marmer yang diletakan pada paving menjadi tulangan, sehingga produk paving block memiliki nilai uji kuat tekan yang tinggi yang dapat digunakan baik, ditaman, trotoar, maupun digarasi kendaraan pribadi. Pangkep district is one of the marble-producing areas in Indonesia, in the mining process, marble is used for furniture and so on so in the process it produces waste. utilization of marble slices waste can minimize the number of piles of waste that can pollute soil fertility and the environment. This study aimed to determine the manufacture of paving block products and the results of the compressive strength test using marble waste. by using the compressive strength test formula to determine the MPanya value and whether the product meets the SNI 03-0691-1996 standard on the compressive strength test. The results of this study showed that paving blocks that utilize marble waste from their physical form has a more attractive appearance with the addition of marble accents on their surface and also as reinforcement, in this testing process paving that utilizes waste has the highest value of 30.36 MPa which is included in the standard. SNI 03-0691-1996 quality B. In conclusion, the use of marble waste to become a paving block product has a big influence on the results of the pressure test because marble waste is placed on the paving as reinforcement, so the paving block product has a high compressive strength test value and can be used well, in the garden, sidewalks, or in the garage of private vehicles.

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zarova, S. V., E. E. Lyapina, N. A. sipova, and E. G. Yazikov. "Hg in waste from mining and processing enterprises in the Republic of Khakassia." Limnology and Freshwater Biology, no. 3 (2022): 1266–68. http://dx.doi.org/10.31951/2658-3518-2022-a-3-1266.

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Abstract. The article presents the original data on the total Hg concentration in the waste of enterprises for the extraction of iron ore, coal and marble located in the Republic of Khakassia. Hg concentrations in the rocks of the dumps and the material of the tailings depend on the electrical conductivity and magnetic susceptibility. The concentration of this element increases in more acidic environmental conditions, and its higher concentrations are associated with particles having a size of 0.04 mm. Geoecological indicators demonstrate the enrichment of Hg waste from all enterprises studied, as confirmed by the calculation data of the enrichment factor.

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Bria, Emilia Juliyanti, and Remigius Binsasi. "Kajian Vegetasi Kawasan Pasca Tambang Marmer di Kabupaten Timor Tengah Utara." SAINTEKBU 10, no. 2 (June 2, 2018): 10–16. http://dx.doi.org/10.32764/saintekbu.v10i2.196.

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Marble is one of the industrial materials of high economic value and very beneficial to people's lives. Therefore, many explorations are done by mining companies. Exploitation of natural resources on a large scale without regard to the carrying capacity of the environment, can lead to drastic decline in the quality of the ecosystem. This is what happened in the post-mine forest area of Oenbit Village, North Central Timor District. This study aims to identify and calculate the abundance of plants and environmental factors that affect the plants in the post-marble area of Oenbit village. The method used is quadratic / plot method. The results showed that plant species with significant values above 80.00% were Anacardium occidentale L. (125.69%), Tamarindus indica L. (122.17%), Tectona grandis L.f (87.32%), and Schleichera oleosa (Lour .) Oken (82.67%). Abiotic environmental factors measured at the study sites are soil pH, soil moisture, air temperature, air humidity and light intensity. The results of these measurements showed no significant difference.

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Vanneschi, Claudio, Giovanni Mastrorocco, and Riccardo Salvini. "Assessment of a Rock Pillar Failure by Using Change Detection Analysis and FEM Modelling." ISPRS International Journal of Geo-Information 10, no. 11 (November 13, 2021): 774. http://dx.doi.org/10.3390/ijgi10110774.

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In this paper, various methods have been used to control and evaluate engineering difficulties in mining accurately. Different unstable scenarios occurring at the surfaces of underground mine walls, have been identified by comparing 3D terrestrial laser scanning surveys and subsequent point cloud 3D analysis. These techniques, combined with a change detection analysis approach and the integration of rock mechanics’ modelling, represent an asset for the assessment and management of the risk in mining. The change detection analysis can be used as control of mining and industrial processes as well as to identify valid model scenarios for establishing possible failure causes. A pillar spalling failure has been identified in an Italian underground marble quarry and this topic represents the basis of the present paper. A Finite-Element Method was used to verify the occurrence of relatively high-stress concentrations in the pillar. The FEM modelling revealed that stresses in the proximity of the pillar may have sufficient magnitude to induce cracks growth and spalling failure.

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Adhyaksa, Fajar Mahesa, Agus Sugiarto, and Akhmad Suryadi. "ANALISIS PERFORMA BETON NORMAL DENGAN PEMANFAATAN LIMBAH BATU MARMER TERHADAP SUBSTITUSI PASIR." Jurnal JOS-MRK 2, no. 1 (March 21, 2021): 58–62. http://dx.doi.org/10.55404/jos-mrk.2021.02.01.58-62.

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Marble stones are one of the famous mining products in Tulungagung Regency and have quite a large amount. This matter makes the marble stones produce quite a lot of waste and pollutes the environment. That, necessary wastes treatment process to reduce environmental pollution by making sands substitution in normal concrete. This research aims to know the effect of substitution marble stones to value of compressive strength and split tensile strength at variations of 0%, 10%, 20%, 30% & 40% and calculate the number of costs needed with the purpose to obtain more economical cost. The mix design of normal concrete use SNI 03-2834-2000 with quality 20 MPa. Then, to know the effect of compressive strength and tensile strength use the Anova test. Based on the result obtained the biggest average compressive strength value at 28 days old is a variation 40% by 54,07 MPa and the smallest is a variation 10% by 19,29 MPa and compressive strength that meets the margin value of the mix design is a variation of 0% of 24.37 MPa; 30% of 25.82 MPa; & 40% in the amount of 42.07 MPa. While the result for the biggest average tensile strength value at 28 days old is a variation of 40% by 3,07 MPa and the smallest is a variation of 20% by 1,49 MPa. Based on the result Anova test for compressive strength and split tensile strength can't be done. So that, used the Kruskal Wallis test and obtained results for compressive strength that marble stone wastes to affect compressive strength. While for split tensile strength declare that marble stone wastes can't affect split tensile strength. In the cost of the calculations on each variation tends to decrease with the lowest cost which is obtained in variation 40% is amount Rp 1.366.696 and save 4,30% from the cost in concrete variation 0%. Then, for financially feasible study for value NPV worth Rp 2.233.637.768 and BCR worth 1,03. So, this business stated feasible for implementation.

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Burgert, Pavel, Antonín Přichystal, and Tereza Davidová. "Nový výzkum pravěkých těžebních polí na Bílém kameni u Sázavy, okr. Benešov New excavation of the prehistoric mining fields at Bílý kámen near Sázava, Central Bohemia." Archeologické rozhledy 72, no. 3 (December 17, 2020): 349–78. http://dx.doi.org/10.35686/ar.2020.12.

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The article presents a current view of the issue of the Neolithic mining site of Bílý kámen near Sázava (Czech Republic, Benešov district). The results are based both on an analysis of earlier finds and on the finds from a new archaeological excavation. The findings show that the traditional idea of one of the most important monuments of prehistoric mining activities of non-silicate rock in Central Europe will need to be substantially revised. The fact that it is not the main source of the raw material of marble bracelets during the period of the Stroked Pottery culture (5100/5000–4500/4400 cal BC) opens new space in a seemingly long-resolved discussion. Radiocarbon data enrich our knowledge of the activities taking place at Bílý kámen in the Late Middle Ages and Early Modern period.

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Ez-zaki, H., A. Diouri, A. Bouregba, F. Amor, S. Chhaiba, O. Sassi, and Y. El Rhaffari. "Ecofriendly bricks elaborated from coal waste of Moroccan Jerrada Mining." MATEC Web of Conferences 149 (2018): 01043. http://dx.doi.org/10.1051/matecconf/201814901043.

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Solid waste generated during mining is one of the major environmental problems associated with this industrial activity. The best solution to overcome the environmental impact of this waste is to find recycling facilities in mass-produced products that can absorb the large quantities of these available byproducts. The present study shows the feasibility of using the coal waste of Moroccan Jerrada mining in the production of ecological brick. The first step consists of consecutive stages of crushing, grinding and heating at 650°C of the coal waste with a small amount of lime in order to promote the reactive products of elaborated binders. The second step of the process consists of mixing treated coal waste with a small amount of marble dust, sand, gravel, and water, then pressed and dried at room temperature to manufacture a laboratory ecofriendly bricks. The mechanical strength and thermal conductivity are investigated.

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Arocena, J. M., J. M. van Mourik, and A. Faz Cano. "Granular soil structure indicates reclamation of degraded to productive soils: A case study in southeast Spain." Canadian Journal of Soil Science 92, no. 1 (January 2012): 243–51. http://dx.doi.org/10.4141/cjss2011-017.

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Arocena, J. M., van Mourik, J. M. and Faz Cano, A. 2012. Granular soil structure indicates reclamation of degraded to productive soils: A case study in southeast Spain. Can. J. Soil Sci. 92: 243–251. Accelerated conversion of degraded landscapes in mining areas to productive ecosystems requires stimulation of soil formation. The evolution in microstructure and changes to chemical properties in metal mine wastes 5 yr after amendments with pig manure, sewage sludge and marble waste is reported. Mine wastes had <1% organic carbon, <0.05% total nitrogen, pH∼2.0, electrical conductivity up to 20 dS m−1and high concentrations of metals such as 22000 mg zinc kg−1and 7000 mg lead kg−1. After 5 yr, one time amendment increased total carbon (g kg−1) from 1.4 (control) to 5.6 (marble waste +sewage sludge) to 8.3 (marble waste+pig manure). Soil pH in amended plots was 6.0 compared with 2.8 in controls. Micromorphological characteristics clearly showed that primary and secondary calcite serve as active sorption sites for organic matter. These calcitic zones were areas conducive to root growth. Soil microstructure in amended mine wastes was dominantly granular, resulting from activities of soil organisms such as fungi and enchytraeds. Results suggest organic matter can be effectively enriched in mine waste deposits through simultaneous additions of pig manure, sewage sludge and calcite. Soil amendments promoting formation of granular structure can accelerate establishment of productive landscapes in degraded mine sites.

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Pytalev, I. A., D. V. Domozhirov, N. V. Ugolnikov, and A. A. Prochorov. "Application of hydrohammers of heavy class in the development of marble deposits in mining operations." IOP Conference Series: Materials Science and Engineering 966 (November 14, 2020): 012020. http://dx.doi.org/10.1088/1757-899x/966/1/012020.

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Licciardello, C., A. Di Marco, S. Biagini, D. Palazzuoli, and K. Tayeh. "2D/3D SOIL CONSUMPTION TRACKING IN A MARBLE QUARRY DISTRICT." International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLVIII-4/W1-2022 (August 5, 2022): 259–64. http://dx.doi.org/10.5194/isprs-archives-xlviii-4-w1-2022-259-2022.

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Abstract. Complex extractive districts, such as the marble quarries in the Apuan Alps (northern Italy), require soil consumption monitoring over the years that could be achieved through high-resolution remotely sensed data. To derive 2D and 3D indicators with appropriate resolution for annual monitoring of high-resolution changes in soil consumption, aerial images, LiDAR acquisitions, satellite data, and Remotely Piloted Aircraft Systems (RPAS) acquisitions were used. In particular, open-access Sentinel-2 multispectral satellite imagery with a spatial resolution of 10 m was used to assess cover changes (2D), and then refined by manual interpretation for 5 years (2016-2021). 3D changes were detected by comparing free aerial LiDAR data from 2009 and 2017, integrated with two stereo models obtained from Pléiades high-resolution satellite images from 2020 and 2022. 3D changes observed over the years by algebraic elevation comparison, performed in QGIS 3.x environment, highlight quarries characterized by intense mining activities (extracted marble blocks, characterized by positive elevation differences) and quarry area management (debris disposal and service infrastructure construction, characterized by negative elevation differences). The combined use of 2D and 3D change indicators can be challenging in order to correctly represent soil consumption over the years. A dual 2D/3D webgis client have been developed for proper representation of 2D/3D spatial indicators of ongoing extraction activities in the Carrara marble basin: high-resolution images have been served as tiled data, while 2D/3D spatial indicators are served as static and/or tiled vector data. Open-Source libraries have used in data processing, serving and representation inside a map interface.

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Gupta, Kalika, Mitin Parmar, Pranav Bhavsar, and Milan Chaudhary. "An Analytical Study Carried Out to Identify Symptoms of Occupational Lung Diseases and Preventive Measures among Workers Involved in Marble Industries in Rajsamand District of Rajasthan." Journal of Evidence Based Medicine and Healthcare 8, no. 02 (January 11, 2021): 53–57. http://dx.doi.org/10.18410/jebmh/2021/11.

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BACKGROUND Occupational lung diseases are diseases affecting the respiratory system, including occupational asthma, black lung disease and many more. Workers exposed to marble dust stand an increased risk of suffering from asthma symptoms, chronic bronchitis, nasal inflammation and impairment of lung functions. The recognition of occupational causes can be made difficult by years of latency between exposure in the workplace and the occurrence of disease. Through this study, authors have established the importance of early identification of symptoms of occupational lung diseases and the importance of preventive measures that can be applied to reduce incidence of such diseases. METHODS This was a cross sectional community-based study conducted on 340 marble mining or cutting workers of Rajnagar [Morwar], Rajsamand district of Rajasthan, for a duration of three months. Workers were clinically examined and asked about environmental conditions and use of preventive measures through a questionnaire designed by the investigators and with the help of pamphlets and videos, educational interventions were provided. RESULTS Almost 90 % of the workers didn’t use protective measure like mask or shield. Among the 10 % workers who were using safety measures, 60 % were using face mask and 20 % were using apron at the work place. After the educational intervention given by investigators, around 63 % had started using various safety measures. CONCLUSIONS Early interventions after development of symptoms are important as they can decrease chances of further worsening of the condition. Health education, periodic health check-ups and use of protective measures are the essence in preventing occupational lung diseases. KEYWORDS Occupational Lung Disease, Cough, Marble Workers, Silicosis

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Kuai, Ji Cai. "Experiments of Rock Cutting with Nano-Cemented Carbide." Applied Mechanics and Materials 423-426 (September 2013): 962–65. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.962.

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Nano cemented carbide is a new style cutter material. Because its grain size is very small, it is superior to common cemented carbide in properties, such as high hardness, fracture toughness, flexural strength and higher abrasion resistance. It is proposed to have wide application prospect to tools and mould manufacturing, machinery manufacturing, geological drilling, mining, oil field development, etc. In this paper, nanocemented carbide tool was ground with ELID technology, and the marble were cut with nanocemented carbide, and the cutting properties of nanocemented carbide were studied. Results imply that the tool life of nanocemented carbide is 0.5-1 times longer than that of common cemented carbide at low cutting speed. Which means the nanocemented carbide is more suitable for machining hard and brittle material than common cemented carbides at low cutting speed. And the microscopic analysis showed, the mechanism of tool wear is the abrasive wear as well as the shedding of WC hard phase within Co phase caused by the hard spots shed from the marble embedding in the internal part of binder phase Co which is located in the hard phase WC.

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