0086-21-58386256

Reuse of mining waste as aggregates in fly ash-based geopolymers

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.

WhatsApp: +86 18221755073

Substitution of Aggregates in Concrete and Mortar with Coltan Mining

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.

WhatsApp: +86 18221755073

Reuse of mining waste as aggregates in fly ash-based geopolymers

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 ...

WhatsApp: +86 18221755073

Utilization of iron tailings as aggregates in paving asphalt mixture: …

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 ...

WhatsApp: +86 18221755073

An experimental study on the mechanical properties of …

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 ...

WhatsApp: +86 18221755073

Study on Waste Marble as Partial Replacement of Coarse …

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

WhatsApp: +86 18221755073

Study of the Mining Waste in the Production of Calcined Aggregate …

The aim of the present study was to evaluate the technical feasibility of using a calcined aggregate with mining residue in different pavement layers, including the base, subbase, and wearing ...

WhatsApp: +86 18221755073

Artificial aggregates: preliminary studies, engineered shape and

Download scientific diagram | Artificial aggregates: preliminary studies, engineered shape and surfaces. from publication: Reuse of mining waste into innovative alkali-activated-based materials ...

WhatsApp: +86 18221755073

Recycled Construction and Demolition Waste as Aggregates: A Study

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 …

WhatsApp: +86 18221755073

(PDF) Quartz Mining Waste for Concrete Production: …

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 ...

WhatsApp: +86 18221755073

Study of the Mining Waste in the Production of …

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 …

WhatsApp: +86 18221755073

Mining wastes as aggregates for concrete | Request PDF

Therefore, this study explores the technical and economic feasibility of using mining waste mate-rial or tailings sands as substitute fine aggregate in the design of conventional concrete (i.e ...

WhatsApp: +86 18221755073

Quartzite Mining Waste: Diagnosis of ASR Alkali-Silica Reaction …

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 …

WhatsApp: +86 18221755073

Use of dimensional limestone mining waste as flexible pavement …

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% ...

WhatsApp: +86 18221755073

Lightweight aggregate and concrete production from waste of mining

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.

WhatsApp: +86 18221755073

Towards Sustainable Shotcrete in Mining: A Literature Review on …

Shotcrete, due to its wide use in the mining industry, can be a solution to address the problem of tailings accumulation. In various mining deposits around the world, large volumes of shotcrete are used, as is the case with the El Teniente and Chuquicamata mines, which consume approximately 80,000 m 3 and 150,000 m 3 per year, respectively [].This situation …

WhatsApp: +86 18221755073

Environmental behavior of construction and demolition waste as …

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 ...

WhatsApp: +86 18221755073

Manufacturing Artificial Aggregates from Overburden Coal Mine Waste …

Owing to a severe shortage of natural aggregates in terms of quantity and quality, alternative aggregate resources must be utilized in civil engineering construction to meet significant increase in aggregate demand. This study focuses on manufacturing artificial aggregates for pavement applications using two waste materials- mine overburden ...

WhatsApp: +86 18221755073

A brief review on sustainable utilisation of marble …

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 …

WhatsApp: +86 18221755073

Concrete containing low-sulphide waste rocks as fine and coarse

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 …

WhatsApp: +86 18221755073

Reimagining resources policy: Synergizing mining waste …

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.

WhatsApp: +86 18221755073

Mining wastes as aggregates for concrete | Request PDF

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 …

WhatsApp: +86 18221755073

Laboratory investigations on hot mix asphalt containing mining waste …

In the present study, limestone (famous as Kota stone) mining waste reformed into aggregates of size between 19 mm and 0.075 mm were used to make bituminous concrete (BC) and dense bituminous macadam (DBM) by replacing conventional (Basalt) aggregates. ... The quarry waste used in this study was obtained from mining areas of Jhalawar and ...

WhatsApp: +86 18221755073

Innovative Approach to Transform Mining Waste into Value

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 …

WhatsApp: +86 18221755073

(PDF) Mining Wastes as Road Construction Material: A Review

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 ...

WhatsApp: +86 18221755073

(PDF) Sandstone Waste as Fine Aggregate Replacement in …

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.

WhatsApp: +86 18221755073

Low-sulfide mining waste rock as aggregates for concrete: …

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 ...

WhatsApp: +86 18221755073

Understanding the mining waste as resources in self-compacting …

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.

WhatsApp: +86 18221755073

Recycling of Mine Wastes in the Concrete Industry: A …

Mining waste, with its physical characteristics and chemical composition, can function as diverse components in concrete, such as sand, aggregates, and binders.

WhatsApp: +86 18221755073

From Mine Waste to Construction Materials: A Bibliometric

This article presents a comprehensive scientometric analysis of mining waste valorization, focusing on tailings utilization in construction materials from 2010 to 2024. Through examination of 1096 Web of Science publications and utilizing CiteSpace mapping and network analyses, we analyze the intellectual structure of this field. Subject category analysis reveals …

WhatsApp: +86 18221755073

Solutions