Alternative fine aggregates in production of sustainable concrete
Crushed rock sand, industrial by-products and recycled fine aggregates are used as replacement of river sand. LCA shows reduction in terms of climate change and resource depletion over river sand. Standardization is needed for gainful utilization.One of the solutions is to use crushed sand to replace natural sand as aggregate in concrete, especially the study of using (PDF) A Study on Using Crushed Sand to Replace
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Natural sand substitution by copper mine waste rocks for concrete
The CMWR sample was used to replace natural sand in concrete by The use of sludge as a substitute for sand or recycled concrete Metallurgical Sludge as Sand Replacement and Constituent of Crushed
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A review on alternatives to sand replacement and its effect on concrete
According to the literature review, the maximum substitute rate of sand In this project, the behaviour of concrete with different proportions of M Experimental Investigation on Concrete by Partial
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PAPER OPEN ACCESS Use of Waste Window Glass as
applications was collected from local workshop, screened and crushed The utilization of electronic plastic waste (EPW) as a substitute for Performance of recycled waste glass sand as partial replacement of sand
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Exploring the Effects of the Substitution of Freshly
This work provides further details on the advantages of using crushed waste glass as a substitute for riverbed sands in concrete mix design. This adds value of environmental sustainability to concrete as a Aggregates are one of the easiest components to substitute in mix design. The classification on fine and coarse aggregates strictly depends on the diameter of the component: the most common fine aggregates in RC are sand or crushed stone. Coarse aggregates play a role in determining the final strength of concrete composite.The Production of Sustainable Concrete with the Use of
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Utilization of recycled crumb rubber as fine aggregates in concrete
Highlights Good compressive strength results were recorded at rubber contents lower than 25% in replacement of crushed sand. Lower density → lower weight. Up to 8% reduction in density was recorded at 25% rubber in substitution of crushed sand. Enhanced ductility of concrete advantageous for usage in highway barriers or other Qadir (2015) investigated the workability of SCC containing ceramic crushed tiles as substitution of CA (0, 15, 25, and 35%). The workability of SCC reduced with an increase in percentage of ceramic crushed tiles. For phase B, ceramic sand and ceramic aggregate concrete had more vacuum water absorption than conventional aggregate Use of waste ceramics to produce sustainable concrete: A
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Sustainable Alternate Materials for Concrete Production
Natural resources are being continuously extracted for the production of concrete which leads to degradation of the ecosystem. This is also a challenge for sustainability to save Nature. This study seeks to identify a suitable replacement material for river sand and stone aggregate for the sustainable utilization of renewable sources. River sand is a non-renewable resource that is becoming more and more scarce. For concrete industry, it is important to use alternatives like manufactured crushed sand or recycled sand. This article deals with the effect of manufactured crushed sand variability on the consistency of mortars. Two basic formulations are tested: the first Manufactured crushed sand: packing fraction prediction and
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Exploring the Effects of the Substitution of Freshly Mined Sands
Although many works have reported on the effects of using waste materials on the functional properties of concrete, the results are generally diverse. In this work, the effects of substitution of fresh sands with crushed waste glass (CWG) for a concrete mix design of 32 MPa concrete is explored. The mechanical properties were A typical concrete mix prepared for the construction of buildings, bridges, highways, water tanks, etc. requires 15% of cement, 30% of natural sand and 50–55% of coarse aggregates. Usually, crushed stones are used as coarse aggregates and during the extraction, hauling, crushing and screening of the coarse aggregates, a significant Experimental Analysis on Partial Replacement of Fine Aggregate
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The use of seashells as a fine aggregate (by sand substitution
Also, the crushed shells used in concrete have low porosity data therefore low permeability concrete [29]. According to this literature review, it is noted that no studies have been performed on the use of seashells as a fine aggregate (sand) in the formulation of fluid concretes such the case of self-compacting concrete.The crushed glass was varied from 0, 5, 10, 15, and 20% by weight to replace both sea sand and road side sand in a concrete mix of grade 40 using a water-cement ratio of 0.5.(PDF) THE ECONOMIC BENEFIT OF USING WASTE CRUSHED
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Use of Waste Window Glass as Substitute of Natural Sand in Concrete
The substitution of these materials in small quantities (fine aggregate 10-20%; cement 5-10%) enhances compressive strength throughout all stages of hardness development; while in largerThe materials used in this study were as follows: cement: type CEM II/A-M (P-LL) 42,5 R (EN 197-1) was used in all types of concrete mixtures. The chemical and physical properties of the cement are presented in Table 1. Aggregate: both fine and coarse aggregates were natural crushed limestone and supplied from the Gumushane city in Use of polyvinyl chloride (PVC) powder and granules as aggregate
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Effects of different industrial waste materials as
The conventional concrete is made up of cement, fine aggregate, coarse aggregate and water, and the effect of aggregate in concrete properties are very important [2]. The widely used fine aggregate in most country is the river sand and due to high demand, this natural material is dwindling with time and its cost is increasing by day [[2], Global consumption of nonrenewable natural aggregate for construction activities is now becoming a significant concern. Reusing agricultural or marine-based wastes could offer a promising alternative to Recycling of Periwinkle Shell Waste as Partial
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Aggregates SpringerLink
Considering the most important applications of aggregates, aggregate related to concrete (ASTM C125 standard) is “a granular material, such as sand, gravel, crushed stone, or iron blast-furnace slag, used with a cementing medium to form hydraulic-cement concrete or mortar.”2 Experimental set-up. Over 250 tests with five different mixes of shotcrete with waste glass aggregates replacing sand at proportions of 0%, 10%, 20%, 50% and 100% under constant water to binder ratio of 0.45, were carried out. The raw materials used in this research and their properties are summarised in Table 2.Sustainable shotcrete production with waste glass aggregates
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Application of Granite Fines to Substitute Sand in Concrete
The technical feasibility is conducted for three classes of concrete, i.e., C32/40, C40/50, and C50/60 produced with GF with varying fines content which is defined as the percentage of particle size finer than 62.5 μm (10%, 16%, and 22%) and percentage substitution (0%, 30%, 50%, 75%, and 100%). The technical feasibility of producing the requirements to be used in concrete mixture. The sand was fine sand taken from Palu River. The coa rse aggregate that was crushed aggregate and stone dust were taken from Stone Crushed Manufacture of PT Beton Jaya Palu. The nominal sizes of coarse aggregate were ranged from 5 to 20 mm.Sustainable development: Using stone dust to replace a
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Structural Performance and Characteristics of Concrete with Crushed
Hence, full replacement of sand could cause the concrete to lose the binding effect it gets from sand. This statement can be incorporated with the very high slump of concrete attained at 100% replacement of sand by crushed glass (Table 4). However, in the long term, the pozzolanic reaction between glass particles and cement could modify Use of recycled concrete aggregates containing sludge also deteriorated the consistency and increased the air content, but at the same time slightly reduced the density of the concrete mix. The use of sludge as a substitute for sand or recycled concrete aggregate as a replacement of natural aggregate affected the absorption of concrete.Metallurgical Sludge as Sand Replacement and Constituent of Crushed
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Partial Replacement of Steel Slag Aggregates in Concrete as
For so many years, river sand is being used as fine aggregates in the making of concrete in the construction industry. Nowadays, due to an increasing demand for river sand, and the rising issues related to the mining of the same, several construction projects are getting a hit in their timely completion and in an economic aspect as well.
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