— Recycled aggregates (RA) from construction and demolition waste (CDW) instead of natural aggregates (NA) were analysed in the manufacture of new eco-friendly concrete. Fine (FRA) and coarse (CRA) recycled aggregates were used in different percentages as substitutes of natural sand and gravel, respectively. The results revealed …
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Substitutes for natural sand and aggregate. According to the UNEP Sand and Sustainability Report of 2022, the global population is projected to increase by an average of 1.9 billion …
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— For instance, [115] showed that using glass waste as a substitute for natural sand aggregate in concrete affected the splitting tensile strength as shown in Fig. 12 [115].
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— The use of M-sand in place of natural sand improves the compressive strength of concrete. It showed that there was a decrease in strength of concrete with 75% replacement of natural sand with M-sand in concrete than in 50% replacement. The tensile strength of concrete is increased by the insertion of steel fibers.
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— The study examined the potential use of washed recycled sand (RS) in pavement construction, as a substitution for natural sand. The feasibility of the application was evaluated from both engineering and environmental aspects, through the conduction of a series of laboratory tests. Dissimilar to the commonly adopted crushed recycled C&D …
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— The sand utilized is river sand that is readily available in the area and complies with Indian zone III standards. The density of sand is 2.67 on the specific gravity scale. The bulk densities of fine aggregate in both its loose and rodded states are 1520 kg/m 3 and 1590 kg/m 3, respectively. Fine aggregate is defined as fractions between …
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— Natural sand was replaced at 10%, 20% and 30% with the crushed window waste glass. Compressive strength of the designed glass-concrete was examined at 1, 3, 7 and 28 days while flexural and splitting tensile strengths were …
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— in the amount of superplasticizer was required to keep the same slump when only 10% of natural sand was substituted by crushed waste glass aggregate. Increasing the replacement level of natural sand by the crushed glass aggregate required further increase of the superplasticizer content to keep the same slump value of 55 ± 5 mm.
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DOI: 10.1016/J.JCLEPRO.2015.07.120 Corpus ID: 153074891; Performance based evaluation of ISF slag as a substitute of natural sand in concrete @article{Tripathi2016PerformanceBE, title={Performance based evaluation of ISF slag as a substitute of natural sand in concrete}, author={Bhavna Tripathi and Sandeep …
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Use of waste window glass as substitute of natural sand in concrete production. / Seddik Meddah, Mohammed. In: IOP Conference Series: Materials Science and Engineering, Vol. 603, No. 3, 032011, 18.09.2019. Research output: Contribution to journal › Conference article › peer-review
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— The primary aim of this experimental investigation is to substitute the natural sand with industrial waste and copper slag so that the attributes of the concrete should remain least affected. The experiments were carried out using 15 different concrete mixes. The mix CC (control concrete) was made with natural sand, whereas the Type A ...
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River sand is usually used in foundations, while concrete sand is used to make concrete and mortar. M-sand is an artificial version of natural sand and can make stronger structures, while fill sand and utility sand have …
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Materials Natural river sand and ISF slag as fine aggregates; crushed stone with nominal size of 20 mm and 10 mm as coarse aggregates; Ordinary Portland cement from a single batch confirming to Indian standards (BIS 8112, 1989); and modified polycarboxylic ether based, ASTM Type F superplasticizer were used to prepare concrete Please cite ...
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— Due to the environmental concerns associated with river sand mining, alternative materials such as manufactured sand (M-sand), crushed stone dust, and recycled aggregates are being explored and promoted as substitutes for river sand.
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— Urbanization processes in Asia are still ongoing; thus, aggregate demand is expected to increase in following years. Even though construction and demolition waste is a source for secondary building materials in industrialized countries, it is not yet an alternative construction material source in Vietnam as the urbanization process is still ongoing. …
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Sand with Quarry Dust in Concrete. Carried out an investigation on the reduction in the sources of natural sand and the requirement for reduction in the cost of concrete production has resulted in the increased need to identify substitute material to sand as fine aggregates in the production of concretes especially in Concrete.
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Recycled glass sand is an eco-friendly and cost-effective alternative to natural sand, commonly used in landscaping, building applications, and as an additive in paving and …
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Substitutes for natural sand and aggregate. According to the UNEP Sand and Sustainability Report of 2022, the global population is projected to increase by an average of 1.9 billion people annually from 2020 to 2050, as reported by the US Geological Survey . Africa is expected to account for 60% of this growth, while Asia will contribute 33%.
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alternative material to natural sand. Some alternatives materials have already been used as a replacement of natural sand such as fly-ash, quarry dust or limestone and siliceous …
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sources of natural sand and the requirement for reduction in the cost of concrete production has resulted in the increased need to find new alternative materials to replace river sand so that excess river erosion is prevented and high strength concrete is obtained at lower cost. Partial or full replacement of natural sand by the other
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— The only parameter varied was the sand, meaning that for each mixture, several mass percentages of substitution of natural sand with glass sand (0%, 10%, 20%, 30%, and 40%) were tested (Table 3). All mixtures were designed with a water-cement ratio (W/C) of 0.56, corresponding to a constant binder content of 10.62 kg and a water …
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— The conservation of natural resources is essential, and finding alternative materials that can partially or completely replace natural sand in construction is the only way to address this issue [7 ...
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— Since it is basically fine aggregate so it can be expected to be used in many applications as substitute of natural sand [10]. However, WFS is too fine to be used as complete replacement of regular sand. Fineness modulus of WFS has been found in the range of 0.9–1.6 compared to 2.3–3.1 for normal sand.
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— The increasing scarcity of natural sands has led to a growing preference for manufactured sand in the production of construction materials in response to ... the feasibility of ecological utilization of recycling stone powder (SP), a by-product from manufactured sand industry, as partial substitutes for cementitious materials was ...
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This study was motivated by the need for the development of eco-friendly concrete, and the use of large quantities of steel slag as an industrial waste which is generated from the steel manufacturers. This eco-friendly concrete was developed with steel slag as a substitute for natural sand. Properties of concrete which used waste slag as the fine aggregate with …
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— Ince (2019) found that at 30% substitution of GMT with natural sand, the CO2 emission is reduced at 9% and this contributes to environmental clean-up. Ramalinga Reddy et al. (2016) showed that substitution of natural sand with GMT is an alternative solution to be explored in a context where it is difficult to meet the demand of natural sand.
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— The extra granules of clay and coal in the mixture caused WFS to replace natural sand, which decreased the mixture's' followability and compressive resistance. The compressive resistance of the material was unaffected due to the substitution of WFS for natural sand in mixture of concretes up to 20 N/mm 2 compressive strengths. •
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increased need to find new alternative materials to replace river sand so that excess river erosion is prevented and high strength concrete is obtained at lower cost. Partial or full …
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— 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 ...
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4. Walnut shells. Walnut shells are often used in sandblasting and may sand a surface in the same way sand can. The shells need to be ground into a coarse powder before using a leather cloth to rub the surface. …
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