Considering the consumption of raw materials due to concrete manufacturing, the use of mine tailings as a substitute can support the conservation of resources for 4 to 5 years. ..., an enhancement of the mechanical properties of gold mine tailings-based geopolymer bricks was obtained by introducing 10% palm oil fuel …
To date, the use of Uis tailings for brick manufacturing supports the local economy, aids building development and removes silica-rich mine wastes prone to dust dispersion in a remote part of Namibia.
Gangue and tailings are both solid wastes produced by mining processing. In this study, permeable bricks were prepared by partial sintering of aggregates method, using gangue and tailings as ...
Another way of recycling waste of ore production is the use of high-magnesium and low-silicon iron ore beneficiation waste as a clay substitute for the production of cement clinker [14][15][16].
To date, the use of Uis tailings for brick manufacturing supports the local economy, aids building development and removes silica-rich mine wastes prone to dust dispersion in a remote part of Namibia.
This paper presents the preparation techniques of sintered bricks that utilize gold mine tailings as the raw materials and clay as an additive. The effects of clay …
DOI: 10.1016/J.CONBUILDMAT.2021.122655 Corpus ID: 233544454; Utilizing gold mine tailings to produce sintered bricks @article{Wei2021UtilizingGM, title={Utilizing gold mine tailings to produce sintered bricks}, author={Zuoan Wei and Junkang Zhao and Wensong Wang and Yonghao Yang and Sunning Zhuang and Ting …
The GMT used in this study are the tailings from the artisanal sector of eastern DR Congo in the Province of South Kivu in the Misisi mining area (Fig. 1 a).The Misisi antenna is one of eight mining antennas in South Kivu Province where artisanal gold mining is more developed in terms of annual gold production.
Different mixing ratios of gold tailings, cement, and water were used. The resulting bricks were then cured in three different environments – sun dried, oven dried at 360°C, and cured in water ...
It was observed that the addition of gold ore tailings that would replace the fine material at particular proportion has displayed an enhancing effect on mechanical properties of concrete. This investigation proves that gold ore tailings can be used as a partial substitute for river sand in preparing concrete.
PDF | s: This work aimed to manufacture ecological bricks using mining tailings, by-products of mining activity, to contribute to sustainable housing... | Find, read and cite all the research you ...
This indicates that the tailings could be used as aggregates in brick manufacturing [14], [15]. Numerous researchers have studied the feasibility of using tailings to prepare sintered bricks. ... This paper presents the preparation techniques of sintered bricks that utilize gold mine tailings as the raw materials and clay as an …
This study presents a methodology for making bricks, in a cost-effective and environmentally friendly manner, using the tailings produced from iron ore mines in Western Australia (WA). The study was based on the geopolymerisation process, which is known to conserve energy by reducing the emission of greenhouse gases. The …
The use of gold mine tailings for brickmaking also constitutes an additional source of revenue for the gold mining companies and in the process creates jobs. Conclusions and recommendations. This laboratory-scale study was aimed at utilizing Witwatersrand gold mine tailings in making bricks.
One of the solutions to these problems is to use the mill tailings for some useful purpose. This study examined the possibility of making bricks from the mill …
This work therefore examines the use of gold mine tailings in the production of bricks. Different mixing ratios of gold tailings, cement, and water were used. The resulting …
7 Roy S, Adhikari G R & Gupta R N, Use of gold mill tailings in making bricks: a feasibility st udy, Waste management & research, 25 (2007) 475 – 482.
The bricks were termed as cement-tailings bricks or soil-tailings bricks, depending on the additives used. The cement-tailings bricks were cured for different periods and their corresponding compressive strengths were determined. The bricks with 20% of cement and 14 days of curing were found to be suitable.
Fabrication of Baking-Free Bricks Using Gold Tailings and Cemented Materials with Low Alkalinity. Jiamao Li 1,2,*, Tao Si 1, Lin Li 1, Chuangang Fan 1,*, Zhaofang He 3, Yuandi Qian 3. 1 School of Materials Science and Engineering, Anhui University of Technology, Maanshan, 243032, China 2 Key Laboratory of Green Fabrication and Surface …
The tailings are used instead of fine aggregate or cement substitution. • The particle size distribution, porosity, and chemical contents of the tailings affect the properties of the concrete. • The use of tailings in concrete can be reduced production costs and CO 2 emissions. • The environmental risks limit the use of tailings in concrete.
The quality of bricks was assessed in terms of linear shrinkage, water absorption and compressive strength, and the cost analysis revealed that cement— …
Mill tailings dumps at Kolar Gold Fields, Karnataka, are creating environmental problems. One of the solutions to these problems is to use the mill tailings for some useful …
The gold tailings activated by mechano-chemical-thermal coupling can be used as supplementary cementitious materials for cement, and the practical …
The bricks were termed as cement— tailings bricks or soil—tailings bricks, depending on the additives used. The cement—tailings bricks were cured for different periods and their corresponding compressive strengths were determined. The bricks with 20% of cement and 14 days of curing were found to be suitable.
The foundry is an industrial sector where various iron, scrap steel, and ferroalloys are melted down in arc furnaces or cupolas, shaped in sand, ceramic, or metal moulds, and the cast, steel, nodular, and tempered foundry products needed in industry are produced as raw or processed materials. Especially in establishments such as factories …
the landscape. This work therefore examines the use of gold mine tailings in the production of bricks. Different mixing ratios of gold tailings, cement, and water were used. The resulting bricks were then cured in three different environments – sun dried, oven dried at 360°C, and cured in water for 24 hours. The bricks were
Mixing iron ore tailings with clay for manufacturing bricks was investigated with the objective of converting the hazardous solid waste into useful products. ... Use of gold mill tailings in making bricks: a feasibility study. Surendra Roy G. R. Adhikari Rama N. Gupta.
Standard- and laboratory-size bricks made from various mill tailings are shown in figure 1. Economics of Brick Production and Marketing. A production cost estimate prepared by the Coal Research Bureau of West ia University showed the estimated cost of producing 1,000 bricks from mill tailings to be $33.64.
The report of [84] reveals that CaO-activated raw crystalline gold ore tailings (GTC1 paste) have no compressive strength, while the sample milled for 80 min (GTC3 paste) attained 2.59 MPa, about 25% higher than the sample milled for 40 min (GTC2 paste). Therefore, the reactivity of tailings increases with increasing milling time.
This work aimed to manufacture ecological bricks using mining tailings, by-products of mining activity, to contribute to sustainable housing development.
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نشانی: شماره 1688، جاده شرقی گاوک، منطقه جدید پودونگ، شانگهای، چین.
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