The three (3) phases of the study were: (1) characterization of the project under study and evaluation of the impacts generated; (2) evaluation of the economic feasibility of using the waste as a ...
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Phase 1: The materials are tested to understand their properties to obtain an appropriate mix to reach the design requirements. This study focuses on the basic properties of the natural and recycled aggregates and cement types for the mix designing purpose. The standard values were considered to evaluate the aggregates feasibility, workability, durability …
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The production of artificial aggregates from mining and metallurgical waste contributes to the preservation of non-renewable natural rock resources. Additionally, the use of artificial aggregates in construction, …
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Download scientific diagram | Artificial aggregates: preliminary studies, engineered shape and surfaces. from publication: Reuse of mining waste into innovative alkali-activated-based materials ...
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The reuse of mining waste-rocks as construction material constitutes an innovative management approach consistent with the principles of sustainable development.Nevertheless, the implementation of this approach is still limited by most guidelines due principally to insufficient knowledge of these materials performances and to unjustified presumptions related to their …
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The scope of the study is to research about sustainable concrete by incorporating waste marble as coarse aggregate. Using waste marble as aggregate will reduce the amount of natural aggregate required. It will displace the mining process of natural aggregate. It will utilize the marble waste which is usually dumped in
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This paper discusses the possibility of utilizing the construction and demolition waste (CDW) as cemented recycled aggregate backfill (CRAB) materials in the underground mining industry. In this regard, several samples were prepared by mixing the recycled aggregates of CDW components and Portland cement and various tests were performed to ...
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Natural aggregate quarrying significantly impacts the environment while phosphate mine waste rock (PMWR) offers alternative aggregates for use in high-added value …
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Capasso et al. in their study found that the compressive strength did not increase significantly on the addition of aggregate and when the mining waste content was added whose aggregate size was ...
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Thus, there is an urgent need to look for an alternate source of aggregates. This waste causes severe environmental and health hazards after being dumped in landfills and open land. There is a need to comprehensively study sandstone cutting wastes in concrete from strength and durability considerations.
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More recently an assessment of potential of gold mining waste rocks reuse as construction aggregates according to the Quebec (Canada) recycling guidelines has been carried out by Benarchid et al. (2018). They showed that the studied waste rocks with 0.31 wt% of total sulfur, were classified as non-acid generating material and able to meet the ...
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This study proposes an eco-friendly approach by exploring the extraction of sand from phosphate waste rocks (PWR) to mitigate the environmental impact associated with the disposal of mine wastes. ... Laboratory investigations on hot mix asphalt containing mining waste as aggregates. Construction and Building Materials, Volume 168, 2018, pp. 143 ...
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The grain size distribution of the raw materials was compared in Figure 2. The mining waste rock can be classified according to the Unified Soil Classification System (ASTM -D2487) as a sand with fine grains SM and have a specific gravity γs equal to 3.08. Table 1, confirmed the silico-aluminate nature of the mining waste rock.
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Recent studies have shown that incorporating up to 15% mine tailings powder (MTP) results in an 8–12% compressive strength increase, as the pozzolanic reactions improve the bond between the ...
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Utilization of mine waste rocks and tailings in concrete as aggregates will help in sustainable and greener development. The literature shows the potential use of iron ore tailings as a ...
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The aggregate produced from the marble mining waste were used as coarse aggregate in concrete mixes (Silva, Gameiro, and de Brito Citation 2014). ... Most of the studies have used calcite based marble waste for their …
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This study examines the feasibility of bone-china ceramic powder waste (BCPW) and granite waste (GW) as a cement and fine aggregate (river sand) in the production of self …
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In the present study, use of mining waste, generated during mining of dimensional limestone is recycled, and used in different layers of flexible pavement. The waste was generated in the form of slurry and boulders. ... Here, waste aggregate was added in interval of 5% as replacement to conventional aggregates and replacement was done till 20% ...
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The use of mining waste is the key to the development of more self-sustainable and less-polluting constructions, since it is possible to manufacture mortars and concrete with …
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Environmental behavior of construction and demolition waste in cemented backfilling mining technology (CW-CBMT) is studied, with the aim of expanding the scope of construction and demolition waste (CDW) utilization, as well as developing strategies to release coal resources. ... Leaching toxicity and surface subsidence studies J Hazard Mater ...
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The mining industry manages large volumes of tailings, sludge, and residues that represent a huge environmental issue. This fact has prompted research into valorization of these wastes as ...
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In this study, a sustainable concrete was proposed by the synergetic valorization of recycled concrete aggregates and waste glass powder. The microstructure, mechanical strength, and bonding properties of this sustainable concrete were systematically investigated, along with the economic and ecological benefits using life cycle assessment method.
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The phosphate extraction and processing has followed a traditional linear consumption model, where wastes are continuously produced and surface land is filled in rock piles. Thus, to promote a circular economy in a mining …
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India possesses a rich endowment of mineral resources, encompassing a total of 95 minerals. These can be categorized into 4 fuel minerals, 10 metallic minerals, 23non-metallic minerals, 3 atomic and 55 minor minerals (including building and other materials) highlighting the country's abundant and diverse mineral wealth [].To meet the escalating needs of a growing …
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In this context, several geotechnical studies have been conducted with the aim of making quartzite mining tailings an alternative source of raw material for different purposes in engineering works or civil construction, for example, aiming to use this waste as aggregate in concrete [12,13,14].Most studies involved the production of structural concrete, with the need to carry …
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This paper reviews previous scientific studies on using mining waste as substitutes for traditional concrete materials. The main goal of this review is to identify the possible challenges and limitations related to the use of mine wastes in concrete. ... Carvalho et al. 2022 studied the use of quartz mining waste was used as aggregates in ...
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Marble industry produces large amount of waste during mining and processing stages. ... campaign to review and develop the results of studies already carried out [6,7] by our team. In this paper, we study the marble waste of Fil-Fila …
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Some studies focused on mining waste rocks as major constituents of construction material under the principles of sustainable development. Benarchid et al. ... Concrete containing low-sulphide waste rocks as fine and coarse aggregates: preliminary assessment of materials. J. Clean. Prod., 221 (2019), pp. 419-429.
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Natural aggregate quarrying significantly impacts the environment while phosphate mine waste rock (PMWR) offers alternative aggregates for use in high-added value construction materials.
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The mining process involves drilling and excavation, resulting in the production of waste rock and tailings. The waste materials are then removed and stored in designated areas. This study aims to evaluate the mechanical strength and the environmental and economic impact of using Coltan Mining Waste (CMW) as a substitute for aggregates in concrete and mortar production.
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