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1. Introduction. The construction sector experiences a growing demand for concrete due to rapid infrastructure development. This development accelerates concrete production upwards of 25 million cubic meters each year in Australia [1] as well as leads to massive extraction of natural resources such as natural aggregate. Sand and gravel are …
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Utilization of this slag in concrete is therefore expected to address the problem of waste disposal in addition to providing a substitute to natural sand. The mechanical properties and permeability of ISF slag concrete containing volumetric sand replacements up to 70% have been reported by the authors during their preliminary work …
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Concrete made with dredged offshore sand with partial replacement of river sand had compressive and flexural strengths equivalent to the concrete made with river sand.
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In the last decades, past research has investigated plastic waste as a substitute for the natural sand aggregate (NSG) in concrete mixtures with a partial or complete replacement.
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products and local concrete production (Saritha, Haripriya, Harshini, & Reddy, 2018). Crushed and screened waste glass is a strong, reliable, and cost-effective substitute for sand in concrete. When processed right, crushed glass can mimic gravel or sand properties. For construction, glass needs crushing
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According to a 2022 United Nations report, this escalating demand for sand, coupled with population growth and urban expansion, could soon trigger a "sand crisis." Applying its signature Joule-heating technique to metallurgical coke, the Tour lab has created a type of graphene that could serve as a substitute for sand in concrete.
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The viability of coal mine overburden (CMOB) as a sustainable substitute for natural sand (NS) in concrete production is investigated in this study, with a specific focus on the critical aspects of strength and durability. The reliability of select nondestructive testing (NDT) methods for evaluating the mechanical and durability properties of CMOB …
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Concrete, a mixture of aggregates like sand and gravel bonded with cement and water, is essential for urban development. With 68% of the global population expected to live in urban areas by 2050, demand for concrete and hence sand mining is …
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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 ...
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Research highlights Quarry dust (QD) used as partial substitute of sand, and RHA as cement replacement. QD obtained as a by-product from the crushing process of granites. RHA enhanced the hardened mechanical properties of concrete. Minor decline in mechanical properties were observed due to QD inclusion. QD can be a viable …
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DOI: 10.1080/19648189.2020.1763476 Corpus ID: 219426268; Effect of graphite tailings as substitute sand on mechanical properties of concrete @article{Liu2020EffectOG, title={Effect of graphite tailings as substitute sand on mechanical properties of concrete}, author={Hongbo Liu and Jing Xue and Ben Li and Junfeng Wang and Xuetao Lv and …
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In glasscrete, glass substitutes fine aggregates in the concrete mixture, and the glass is broken into small pieces. The concrete mix of glasscrete includes cement, coarse aggregate, and glass aggregate components. ... and glass aggregate components. Concrete with broken glass has better workability than concrete with natural sand. …
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Traditional concrete is made by mixing sand, water, gravel, cement, and various other aggregates. Cement is the binding agent in concrete mixtures. ... Originally, hemp fibers were combined with lime …
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Here are four promising alternatives to concrete with the potential to transform the future of construction: 1. Hempcrete. Hempcrete is a bio-composite …
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ASSESSMENT OF M-SAND AS POTENTIAL SUBSTITUTE FOR NATURAL SAND IN CONCRETE Shivang Jayswal1, Mahesh Mungule2 1Research Scholar, Deptt. of Civil Engg., IITRAM, Ahmedabad, jayswalshivang@gmail
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Desert Sand: Sourced from desert areas and not suitable for construction uses due to grains being too fine and overly smoothed at present, although some are developing concrete substitutes using desert sand; Biogenic/ Bio-organic Sand: Sand who's makeup is largely from coral, shells and the skeletons of marine life
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There are interesting review papers [24], [30] on the use of bottom ash as sand substitute in concrete. Some appraisals present its effect on plain concrete properties [24], [31], [32], [33], blended cement concrete [34], and other special concrete [35]. Continuous discoveries on performance of this material in fresh, mechanical and …
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This study extensively explored the impact of integrating waste tire rubber into high-performance concrete (HPC) by substituting natural sand. Different fractions of rubber particles—5%, 10% ...
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Here are six sustainable substitutes for traditional concrete and how to use them. 1. Hempcrete. Hemp has become a sustainable alternative in numerous …
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Effect of graphite tailings as substitute sand on mechanical properties of concrete Hongbo Liu a School of Civil Engineering, HeilongJiang University, Harbin, Heilongjiang, China;b Ministry of Education of People's Republic of China, Key Laboratory of Functional Inorganic Material Chemistry, Harbin, Heilongjiang, P.R. China View further ...
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Hemp concrete or hempcrete uses hemp hurds and binds them with lime, water and additives like sand to make the concrete alternative. Hempcrete uses much less water than typical concrete and is much lighter, making it easier for construction crews to handle. In construction, contractors often use hempcrete for insulation.
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To varying degrees, cement substitutes work in two ways: • First, they hydrate and cure like portland cement. • Second they are "pozzolans," providing silica that reacts with hydrated lime, an unwanted by-product of concrete curing. Pulverised Fuel Ash (PFA), aka 'Fly ash' as a cement substitute.
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For the purposes of this research, M30 concrete was mixed in accordance with IS 10262:2019 [16] ata ratio of 1:1.45:2.89, with wood ash serving as a 0–20 % partial substitution of cement and foundry sand serving as a 0–20 % partial substitution of fine sand, as indicated in Fig. 2. Table 5 lists the proportions of concrete mixed with foundry …
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1. Introduction. As one of the most energy-intensive industries, the construction industry consumes approximately 33 % of the world's energy annually and produces one-third of global carbon emissions to the environment [1, 2].Concrete is the most widespread material in construction industries, the production of which also consumes massive natural …
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The paper presents results of study on concrete using quarry dust to replace sand at levels of 0%, 25%, and by weight. Design mixes were prepared to achieve concrete grades C25, C30, C35, C40 ...
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"We compared concrete made using the graphene aggregate substitute with concrete made using suitable sand aggregates, and we found our concrete is 25% lighter but …
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On any given day, Central Concrete, in San Jose, Calif., does what concrete companies have been doing for centuries: combining sand, gravel, water and cement to create the slurry that is used in ...
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"We compared concrete made using the graphene aggregate substitute with concrete made using suitable sand aggregates, and we found our concrete is 25% lighter but just as tough."
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Coffee could serve as a green substitute for some of the sand in concrete. DepositPhotos. Share. Humans are predicted to go through nearly 175 million bags of coffee over the next year, ...
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