0183;The use of tailings sand for CO 2 mineralization and utilization (CMU) has been emerging globally, offering a sustainable solution for repurposing tailings sand while establishing a stable carbon sink. Despite several reports that evaluated process performance and project benefits, existing research has not delved into the project layout focusing on the tailings pond[
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0183;Tailings have been widely used in engineering construction in the form of tailings sand [19], [20], which is due to the following characteristics: 1) the fineness modulus of tailings sand (mainly in the range of 0.7–2.2) is similar to fine and ultra-fine natural sand [21]; 2) the apparent density of tailings sand ranging from 2600 to 3200 kg[سؤال
0183;Types of Tailing Materials in Construction. Tailing materials in construction can vary widely depending on the nature of the project. Below are some common types of tailing found in different construction activities: 1. Excavation Tailing. Excavation tailing includes materials such as soil, gravel, sand, and rock. These materials are often[سؤال
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induced pore pressures arising from dam construction and tailings deposition as well as other variables can make tailings dams both complex and sensitive structures to manage (Morgenstern, Fair
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0183;Potential use of mine tailings and fly ash in concrete Concrete mix with 35% TM and 65% natural sand (TM35/S65) has shown superior performance in strength as against (TM0/S100, TM30/S70, TM40/S60, TM50/S50, and Shakthinagar, Karnataka, in concrete so as to derive their beneficial use in construction industries. 2. Materials and methods[سؤال
0183;The specific composition of mine tailings sand can vary widely depending on the type of ore being processed and the extraction techniques employed. Generally, mine tailings sand has a higher mineral content compared to natural sand, making tailings sand potentially useful as construction materials (Ikotun et al., 2022).[سؤال
0183;• Sand-rich tailings mixed with cement used as backfill in underground mines • Clay-rich tailings as an amendment to sandy soils and for the manufacturing of bricks, cement, floor tiles, sanitary ware and porcelains • Mn-rich tailings[سؤال
0183;Limestone tailings sand was prepared by a small jaw crusher in the laboratory, and the fineness modulus of the limestone tailings sand was adjusted by the crusher outlet size. Limestone tailings sand was sieved according to GB/T 14684–2011 Sand for Construction to determine the fineness modulus.[سؤال
0183;using the standard methods to assess the suitability of the bricks for use as construction material. Three types of qualified bricks with different tailings compositions (30%, 40% and 50%), along with the other materials in bulk quantities, were produced and used in the model house to evaluate the associated in situ radiological hazards.[سؤال
0183;The combined material and transportation cost of UHPC can be reduced by up to 33.1% replacing quartz sand by the tailings, for construction near the mine site. The CO 2 emission can be reduced by up to 12.1%. In the area near the mine site, utilization of the tailings can economically and environmentally, as well as in terms of durability, be a[سؤال
0183;For the applications of waste rocks and tailings, many people know that they can be used to produce recycled sand and gravel aggregate, but other applications are not particularly well understood. Today, Fote Heavy Machinery will share with you the 13 applications and usages of waste rocks and tailings. 1. Sand and gravel aggregate[سؤال
0183;According to the technical specifications for whole tailings paste backfill production technology in domestic metal mines, which stipulate that the slump of the whole tailings paste backfill should be within the range of 18.0–26.0 cm [54], it can be deduced that the flowability of the slag-based backfill cementing material, as determined by[سؤال0183;IOT sand was first used by Huang et al. [12] as a mortar fine aggregate to make iron ore tailings cement mortar (IOTC), and researchers compared its performance with natural sand cement mortar[سؤال
0183;Studies [7,11,12,13] have shown that iron tailings sand could be used in concrete as sand replacement, and in order to maximize the effect of iron tailings sand in reducing environmental problems, cost and natural resources depletion, a 100% replacement ratio was used in this study. A polycarboxylate superplasticizer of 1% was used as admixture[سؤال
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River sand was replaced with 10%, 20% and 30% gold mine tailings and the resulting fine aggregates were used in concrete mix. Mix proportions for M25 concrete were obtained for five mixes as per guidelines given in IS: 10262-2009.
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0183;Existing research has shown that many types of tailings can be used as substitutes for roadbase materials, such as magnesite tailings [21,22], iron tailings [23–25], lead-zinc tailings [26]. However, no studies have yet been conducted on the potential use of MoT sand in road construction. Show abstract. The large accumulation of molybdenum[سؤال
0183;concluded that by limiting IOT to 20% (optimum) tailings can be used in concrete. Mangalpady Aruna[3] used the tailings as the partial replacement to the sand and quarry dust in the manufacture of paving blocks. The blocks that manufactured using quarry dust and Tailings resulted in higher compressive strength at 28[سؤال
0183;Replacing natural sand with IOT as fine aggregates in concrete could potentially be a promising option. Typical sizes of IOT with a diameter below 0.6 mm can be used as fine aggregates for application in concrete. Compared to natural sand, using IOTS as a substitute can improve the particle gradation of aggregates within UHPC.[سؤال
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One of such method is the application of tailings in sustainable concrete production. It is shown that physical and chemical characteristics of tailings are comparable to crusher sand used in engineering construction and therefore, tailings can be used to partially replace sand in bituminous and concrete mixtures.
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We can reduce their use, recycle from construction and demolition waste, and substitute by other materials. Ore -sand is one of the possibilities but given the amount of such material (in the order of several billion tonnes per year), it is the option showing the largest potential to have a significant impact. If ore-sand can be used
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0183;Ore-sand: A potential new solution to the mine tailings and global sand sustainability crises-Final Report. CROSSING 'THE CHASM' IN INNOVATION ADOPTION. AN OVERVIEW OF ELEMENTS NEEDED TO 'CROSS[سؤال
0183;This study presents the various properties of concrete with sand and its alternatives such as physical and mechanical characteristics of concrete. it is concluded that the highest substitute rate of sand replacement in concrete can help to resolve a variety of disposal-related difficulties, save the natural resources used in aggregate mining[سؤال
0183;The processing of low-grade sulphide gold ores generates a significant volume of tailings which impacts the environment. The reuse of sulphide mine tailings as a substitute for sand in construction mortar offers the advantages of reducing costly tailings management whilst promoting sustainable construction.However, the acceptance of mine tailings as alternative[سؤال
0183;Iron tailings (IT) is a kind of solid waste, which is usually divided into iron tailings powder (ITP) and iron tailings sand (ITS). It has been reported that IT has potentials to be used in ultra high performance concrete (UHPC). However, the recovery rate of IT is relatively low, and rare research mentioned the co-utilization of ITP and ITS to get full-scale use of IT.[سؤال
0183;The search for alternatives that can replace conventional materials extracted from nature is crucial for environmental sustainability. This is especially the case for construction and geotechnical engineering, as this sector is a major consumer of the planet’s natural resources. This paper explores the use of ore sand (OS) tailings with fine aggregate[سؤال
0183;to solve the sand scarcity and maximize industrial waste utilization. The workability and mechanical properties of concrete specimens with varying percentages of iron ore tailings as replacement. The ndings indicate that concrete with 35% iron ore tailings replacement performs similarly to natural sand concrete and it can be used in engineering.[سؤال
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Hydro-cycloning of plant tailings is an often used tool to produce relatively coarse free draining sand (cyclone underflow) for Tailing Storage Facility (TSF) embankment construction. This paper outlines the available choices and design considerations involved for the minimizat
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Studies [7,[11][12] [13] have shown that iron tailings sand could be used in concrete as sand replacement, and in order to maximize the effect of iron tailings sand in reducing environmental
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0183;Regarding particle sizes, there are three types of IOT categories: iron tailings rock, produced by mechanical crushing of low-grade ore and wall rock, with a granulometry above 4.75 mm and used as coarse aggregates; iron tailings sand, produced by grinding and filtering iron ore, with a particle size between 0.16 mm and 4.75 mm and used as fine&سؤال
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Our work has demonstrated that by-products of metal mining can be used as a viable and sustainable ore-sand for construction (aggregate) or other industries (silica sand), displacing the need for sand extracted from the natural environment. Vale’s Sustainable Sand to impact tailings generation plans Sustainable Minerals Institute, 15
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