The main difference between precast concrete and site-cast concrete is that precast concrete is poured off-site, usually at a plant, using a mold. Site cast concrete, in comparison, is poured on the construction site itself, subjecting it to environmental factors, weather, unstable schedules, and much wasted excess material.
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A total number of 96 specimens were cast compression, tensile and flexural strength were founded. There by we conclude that the waste tiles and crusher dust could be used as alternative materials for sand and gravel in concrete.
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Bulking of Sand – If the moisture is present in the sand, then it makes the sand look bulkier, which could result in inadequate sand proportion in the concrete ratio. If we need to add 1m 3 sand in the concrete mix ratio, we take 1.3 m 3 (30% more). The reason for that is the moisture content present in the sand makes it a little bulkier. The
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The reason concrete cannot be made simply by mixing sand with cement is that it is a composite material that needs a coarse aggregate to achieve this strength. In essence, concrete is a mixture of Portland cement, water, sand, and rocks. The cement or paste coats and binds the sand and rocks. Then, a chemical reaction called hydration, which is
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Therefore, this study intends to use ceramic tile aggregate in concrete production. The paper reports on the performance of 3 different concrete mixes containing different ratios of crushed tiles having 20 mm maximum size as coarse aggregate. Ordinary Portland Cement 53 grade and coarse sand were used to produce standard concrete
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A concrete mix of 1 part cement: 2 parts sand: 4 parts coarse aggregate should be used for a concrete slab. Concrete must be placed within half an hour of mixing. Place your concrete into your formwork; work the concrete into awkward places and corners using a shovel or trowel.
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material is concrete in terms of tonnage. 1.2 TILE AGGREGATE CONCRETE: Crushed tiles are replaced in place of coarse aggregate and rebutted tyre powder in place of fine aggregate by the percentage of 10%. The fine and coarse aggregates were replaced individually by these crushed tiles and rebutted tyre powder and also in
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Why Should I Sand My Concrete Floor? There are many reasons to want to sand a concrete floor or surface. Maybe you want to cure, finish, or paint the exterior. Perhaps it’s part of a more significant finishing project, such as completing a basement floor. Or maybe there’s a bigger problem you are trying to fix.
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Why Should I Sand My Concrete Floor? There are many reasons to want to sand a concrete floor or surface. Maybe you want to cure, finish, or paint the exterior. Perhaps it’s part of a more significant finishing project, such as completing a basement floor. Or maybe there’s a bigger problem you are trying to fix.
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material is concrete in terms of tonnage. 1.2 TILE AGGREGATE CONCRETE: Crushed tiles are replaced in place of coarse aggregate and rebutted tyre powder in place of fine aggregate by the percentage of 10%. The fine and coarse aggregates were replaced individually by these crushed tiles and rebutted tyre powder and also in
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Bulking of Sand – If the moisture is present in the sand, then it makes the sand look bulkier, which could result in inadequate sand proportion in the concrete ratio. If we need to add 1m 3 sand in the concrete mix ratio, we take 1.3 m 3 (30% more). The reason for that is the moisture content present in the sand makes it a little bulkier. The
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According to several paver manufacturers, paving blocks can be installed on top of concrete without mortar if you first lay down a 1/2″ to 1” bed of coarse sand. Drainage: The biggest problem with laying pavers over a concrete slab is the inability for water to drain through the blocks and down into the earth.
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The basic properties of concrete are fine and coarse aggregates (like sand and rocks or pebbles), Portland cement, and water. These three raw materials each play a different chemical role in the formation of concrete, as Portland cement is a hydraulic cement meaning it gets its strength from its chemical reaction with water.
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The workability of roof tile waste concrete was in the range of medium. The replacement of tiles in concrete is satisfactory for light constructions. [16] said the amount of tile waste generation is enough to use in concrete as a replacement to coarse aggregate. The use of ceramic tile waste has a positive effect on environment and
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material is concrete in terms of tonnage. 1.2 TILE AGGREGATE CONCRETE: Crushed tiles are replaced in place of coarse aggregate and rebutted tyre powder in place of fine aggregate by the percentage of 10%. The fine and coarse aggregates were replaced individually by these crushed tiles and rebutted tyre powder and also in
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Hence, the crushed waste ceramic tiles were used in concrete as a replacement for natural coarse aggregates with 0%, 5%, 10%, 15% 20% and 25% of substitution. After analyzing results, the optimum value of waste ceramic tile to be used within the concrete mix with a water/cement ratio of 0.5 was determined as about 20%.
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Lightweight concrete is a mixture made with lightweight coarse aggregates such as shale, clay, or slate, which give it its characteristic low density.Structural lightweight concrete has an in-place density of 90 to 115 lb/ft³, whereas the density of regular weight concrete ranges from 140 to 150 lb/ft³.
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M-20 = 1 : 1.5 : 3 = 5.5, (Cement : Sand : Aggregate) Some of Mix is – 5.5. Where, M = Mix 20 = Characteristic Compressive strength. Consider volume of concrete = 1m3. Dry Volume of Concrete = 1 x 1.54 = 1.54 m3 (For Dry Volume Multiply By 1.54) Now we start calculation to find Cement, Sand and Aggregate quality in 1 cubic meter concrete
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OPC 33, class F fly ash, M sand, coarse aggregate of 6mm size and alkali-activator solutions of sodium silicate and sodium hydroxide designed at 12M and prepared one day prior to casting of geopolymer concrete tile specimens is used to produce the geopolymer concrete [1][2]. B. Preparation of alkali-activator solution
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We find out the volume of concrete in wet condition 1m3 (After the consolidation of Cement + sand + water). So in dry conditions, we have to add 30 to 35% sand bulkage and add 20% for wastage.
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Bulking of Sand – If the moisture is present in the sand, then it makes the sand look bulkier, which could result in inadequate sand proportion in the concrete ratio. If we need to add 1m 3 sand in the concrete mix ratio, we take 1.3 m 3 (30% more). The reason for that is the moisture content present in the sand makes it a little bulkier. The
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material is concrete in terms of tonnage. 1.2 TILE AGGREGATE CONCRETE: Crushed tiles are replaced in place of coarse aggregate and rebutted tyre powder in place of fine aggregate by the percentage of 10%. The fine and coarse aggregates were replaced individually by these crushed tiles and rebutted tyre powder and also in
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Lightweight concrete is a mixture made with lightweight coarse aggregates such as shale, clay, or slate, which give it its characteristic low density.Structural lightweight concrete has an in-place density of 90 to 115 lb/ft³, whereas the density of regular weight concrete ranges from 140 to 150 lb/ft³.
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concrete made with 100% crushed tile as the coarse aggregate had a lower density and higher compressive (+2%), tensile (+70%) and flexural (+29%) strengths. D. Tavakoli (2012) Using ceramic wastage in concrete pro-duction causes no remarkable negative effect in the properties of concrete. The optimal case of using tile wastage as sand are
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ceramic tile aggregate in the concrete, the workability of the concrete is also increased. 5) The compressive strength of the concrete is increased when the water cement ratio of the concrete is decreased. 6. REFERENCES 1) Parmimder singh, Dr. Rakesh kumar Singla, Utilization Of Waste Ceramic Tiles As Coarse Aggregate In Concrete,
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Over this compacted earth filling, uniformly spread a layer of clean coarse sand about 10 to 15 cm thick. A base concrete of grade M10 (1 cement : 3 sand : 6 coarse aggregate) is then laid over the sand layer in the required slope and tamped properly. The thickness of base concrete is generally 100 mm. Level the top of the base concrete and
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Concrete Ingredients Calculation. For Cement, Sand and Coarse Aggregate. This is a Volumetric Calculation. Assuming we need 2 m 3 of concrete for M20 Concrete Mix, (Mix Ratio, M20 = 1 : 1.5 : 3) Total Part of the Concrete = 1+1.5+3 = 5.5 Parts. Therefore, Cement Quantity = (Cement Part / Concrete Parts ) * Concrete Volume
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Refer to Sections 90-4.01C(3), “Precast Concrete Quality Control Plan,” and 90-4.01D(2), “Quality Control,” of the Standard Specifications for additional information as they pertain to tiers 1 and 2 precast concrete members. For tiers 3 and 4 precast concrete members, a project-specific quality control plan is not required.
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According to several paver manufacturers, paving blocks can be installed on top of concrete without mortar if you first lay down a 1/2″ to 1” bed of coarse sand. Drainage: The biggest problem with laying pavers over a concrete slab is the inability for water to drain through the blocks and down into the earth.
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Concrete Ingredients Calculation. For Cement, Sand and Coarse Aggregate. This is a Volumetric Calculation. Assuming we need 2 m 3 of concrete for M20 Concrete Mix, (Mix Ratio, M20 = 1 : 1.5 : 3) Total Part of the Concrete = 1+1.5+3 = 5.5 Parts. Therefore, Cement Quantity = (Cement Part / Concrete Parts ) * Concrete Volume
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