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It advocates repurposing mining waste into concrete aggregate, promoting eco-friendly practices. The paper conducts a thorough review of recent developments, …
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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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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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It delves into the innovative repurposing of mining waste as aggregate in concrete production, advocating for a shift towards sustainable and eco-friendly practices. ... Overall, red mud is the preeminent focus in mining waste studies, holding a substantial share in the analysed literature with 95 of the surveyed articles spotlighting its reuse.
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This study proposed stone mining waste as one of the potential alternative for fine aggregate in Bituminous courses. The performance of the proposed concrete mix has been …
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The aim and objective of this paper is to study the suitability of mining waste i.e. dolomitic - limestone as an aggregate for the ready mixed concrete and road construction by focusing …
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The expansion of aggregates due to alkali-aggregates reaction or internal sulfate attack in waste rock-based concrete which mix design is given in Table 1.3. The parameter was measured in triplicate according to the procedure length change of concrete prisms 75 × 75 × 275 mm as indicated in CSA A23.2–14A standard method, which is equivalent ...
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In most industries, including coal mining, concrete is regarded as one of the most commonly used building materials (Aslani et al., 2018).Concrete consists of natural resources such as gravel and river sand, and a burden is placed on the limited available and environmental resources by increasing concrete production (Li et al., 2015, Meng et al., 2018).
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Therefore, the aim of the present study is to evaluate the utilization of calcined aggregates produced from fine mining waste (sludge) as an alternative material for pavement construction that meets the criteria for selecting …
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Therefore, further development of technologies to produce LWAs from mine tailings will significantly benefit several advanced industries such as "infrastructure engineering" by production of sustainable and valuable construction materials and "energy and natural resources" by utilization of mining waste and reduction of waste deposition.
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The development of artificial aggregates through alkali-activation of mining waste presents itself as a viable technical solution to compete with other commonly adopted materials and may lead to ...
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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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Yash Pande and others have carried out study for replacing natural aggregates by thermal power station coal rejects in granular sub-base and bituminous layers in road construction. The study has confirmed coal rejects as an alternative to natural aggregate in road construction works (11). 3.5 Iron Ore Tailings(IOT)
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Purpose. Due to the high demand of concrete, significant volume of natural resources is required, including aggregates. Many studies have shown that the production of concrete has one of the highest CO 2 levels. Although efforts are in place to recycle, enormous effects on landfill and the wider environment remain.
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Liu et al. (2020) used construction and demolition waste as recycled aggregates for backfill in mines, carried out toxicity leaching, scanning electron microscopy, mechanical property test, and ...
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and industrial perspectives. This study will lead to a better understanding of the deter-mining factors that can influence the SWR behavior under real loading conditions. In ad-dition, the official use of these aggregates outside the mine site would be of great im-portance for Morocco, both in economic terms and in reducing the ecological burden on
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The particle size of the recycled aggregates in the region of study ranged from 0 to 1 cm. The mean particle size of the recycled aggregates reached a maximum Φ m = 0.5 cm at position sx, followed by a value of 0.49 cm at position zx, and a …
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Based in Calgary, Alberta, Calgary Aggregate Recycling (CAR) is an enterprise focused on developing aggregate materials from the innovative reuse and repurposing of leftover or discarded construction & demolition waste and excavation waste. As Alberta's population growth continues, the demand for infrastructure has never been greater.
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Mineral waste can be defined as a material leftover from exploration, mining and quarrying operation that cannot find a productive use. It is the high-volume material that originates from the excavation and physical and chemical processing of a wide range of metalliferous and non-metalliferous minerals by opencast and deep shaft methods [].The mine waste is the …
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The current situation seeks to identify sustainable and economic alternatives for natural aggregate such as mining wastes (OB), processing wastes (tailings), and industrial wastes (fly ash, bottom ash, cement kiln dust, steel slag, etc.), to be used on roads. ... It can be concluded from the above study that the utilization of coal waste in ...
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The utilization of waste rock aggregates from a phosphate mine in the construction field provides an alternative strategy for sustainable waste management and enhances environmental protection. This study investigates the feasibility of replacing the natural limestone aggregates in concrete mixes with waste rocks from phosphate mining in Jordan.
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Download Citation | On Jan 1, 2023, Liyuan Wu and others published Mining waste utilization: case studies and good practices | Find, read and cite all the research you need on ResearchGate
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Compared to existing studies with an average bulk density of about 250 kg/m 3 [25] to 1970 kg/m 3 [21] (Table 1) for the aggregates prepared using various other mining waste, the density of overburden soil aggregates was higher, starting from 877 to 1178 kg/m 3, 891 to 1194 kg/m 3, 989 to 1096 kg/m 3 for red clay, ball clay and alluvial clay ...
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Copper Mining Solid Waste as Replacement Aggregate of River Sand in Cement Mortar to Investigate the Effect on Fresh, Durability and Microstructural Properties: A Walkthrough to Sustainability ... The study ranges from 0% to 50% by volume replacement levels of sand by CT with an interval of 10% in 1:3 (rich Mortar) mortars. The quantity of ...
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To minimize its impacts, this study proposes the production of synthetic coarse aggregates (SCA) from this residue, aiming for its application in Portland cement structural concrete.
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Effect of untreated coal waste as fine and coarse aggregates replacement on the properties of steel and polypropylene fibres reinforced concrete. Mech. Mater. (2020) ... In this direction, this study has been prepared by reviewing studies published on mining waste legislation. This study discusses mine waste legislation in Türkiye by referring ...
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Mineral waste represents the largest group of industrial waste, which constitutes a serious environmental and economic problem. This paper presents the phase and chemical susceptibility to leaching of coal mining wastes, steel and iron production slags, and non-ferrous metallurgical slags. These wastes, because of their properties, are used for the production of …
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Environmental behavior of construction and demolition waste as recycled aggregates for backfilling in mines: Leaching toxicity and surface subsidence studies ... should be carried out to improve our knowledge of environmental consequences of CDW when used in cemented backfilling mining. The main purpose of the present study is to improve ...
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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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Phosphate mining provides the vital phosphorus element but it also generates an enormous quantity of waste rock [27].A quantity of 15 Mm 3 of phosphate mine waste rock (PMWR) is stored in the mine of Ben Guerir in Morocco. These waste rock contain three potential alternative aggregate for concrete: Flint (F), Phosflint (PF), and Dolomite (D) that were …
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