Coarse aggregate ratios for different Zones of Fine aggregates are given in Table 3 of IS10262. These are ratios are valid for 0.5 Water-cement ratio. Table 3 Volume of coarse aggregate to total aggregate ratio for Mix Design of M20 concrete – IS10262. For aggregate = 20mm, Fine aggregate= Zone II, Water-cement ratio = 0.50.
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For all type of coarse aggregate, 75 cubes (150 x 150 mm) were cast to permit the compressive strength to be observed at 3, 7, 14, 21, compressive strength of concrete mixes is m15 and m20. From the literature review, it is observed that researches have been attempted on various aspects
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M10 and M20 grade of concrete is used in mass concrete work. M15 is generally used for all purpose of general nature such as RCC slabs, and flooring. M20 and M25 is used for thin RCC members such as precast members, shed roofs, thin shell etc. M35 and M40 are used in pre-stressed concrete structures i.e. for post-tensioned and pre-tensioned
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Grade of concrete is denoted by prefixing M to the desired strength in MPa. For example, for a grade of concrete with 20 MPa strength, it will be denoted by M20, where M stands for Mix. These grade of concrete is converted into various mix proportions. For example, for M20 concrete, mix proportion will be 1:1.5:3 for cement:sand:coarse aggregates.
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The strength of M20 grade concrete cast using crushed sand was observed to be 43.38% more than that of cast using natural sand, whereas the percentage increase in the cement consumption per cubic meter of concrete was observed to be 16.03%. The workability of grade M20 concrete in both the cases was approximately the same. •
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🕑 Reading time: 1 minute The selection of good quality coarse aggregate is essential for the production of concrete that meets the desired strength and durability requirements. Ideal construction aggregate should have a rough surface texture and should be clean, strong, and free from coating and other dirt particles. Coarse aggregates with a size of […]
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Dry volume of concrete is equal to 1× 1.54 = 1.54 m3 ( cubic meter) step 2 :-m20 nominal mix ratio is 1:1.5:3,in which one part is cement, 1.5 part is sand & 3 part is aggregate, then total mix proportion is equal to 1+1.5+3 = 5.5, and part of cement is equal to 1/5.5, part of sand is equal to 1.5/5.5 & part of aggregate is equal to 3/5.5 How much cement required for M20 concrete
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The strength of M20 grade concrete cast using crushed sand was observed to be 43.38% more than that of cast using natural sand, whereas the percentage increase in the cement consumption per cubic meter of concrete was observed to be 16.03%. The workability of grade M20 concrete in both the cases was approximately the same. •
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concrete strength of M20 Grade by partial replacement of cement from 0% to 2.0% with artificial fiber (polypropylene fiber) and from 0% to 2.5% natural fiber (coconut fiber). The mix design of M20 grade concrete was designed as per the method specified in IS 10262-1982. Abhijeet.R.Agrawal[1] observes while decreasing
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Concrete Mix Design Data Required for Concrete Mix Design (i) Concrete Mix Design Stipulation (a) Characteristic compressive strength required in the field at 28 days grade designation — M 25 (b) Nominal maximum size of aggregate — 20 mm (c) Shape of CA — Angular (d) Degree of workability required at site — 50-75 mm (slump) (e) Degree of quality control available at site — As per IS
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For example, for a grade of concrete with 20 MPa strength, it will be denoted by M20, where M stands for Mix. These grade of concrete is converted into various mix proportions. For example, for M20 concrete, mix proportion will be 1:1.5:3 for cement:sand:coarse aggregates.
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3. From Graph 2, for M50 grade concrete cubes with 30% replacement of CS aggregates had given requisite strength of 51 Mpa at 28 days. Further we can replace CS up to 40% which gives M20 grade concrete strength so; we can use it as M20 grade concrete up to 40% CS replaced for low cost housing & the places where it is easily available.
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Ans. :-19 cft (0.42 m3, 680 kgs) sand are required for 1 cubic metre of M20 concrete. How much aggregate required for M20 concrete. We have given dry volume of concrete is equal to 1.54 cubic metre and part of aggregate in concrete mix is equal to 3/5.5, density of aggregate is equal to 1550 Kg/m3 and one cubic metre is equal to 35.3147 cu ft
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The mix design for M20 grade concrete was done according to IS 10262-2019; Fig 3.1 shows the methodology adopted for assessment of compressive strength of concrete. Aggregate Cement Water Plastic chips Cement concrete mix M20 Partial replacement of coarse aggregate with 10% plastic chips Partial replacement of coarse aggregate with 20% plastic
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The strength of M20 grade concrete cast using crushed sand was observed to be 43.38% more than that of cast using natural sand, whereas the percentage increase in the cement consumption per cubic meter of concrete was observed to be 16.03%. The workability of grade M20 concrete in both the cases was approximately the same. •
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In this paper shows analysis of compressive strength of M20 and M25 grade of concrete by replacing coarse aggregate by adding non metallic e-waste in 0% to20% and it is observed that some percent non metallic e-waste can be use as a coarse aggregate in concrete. Keywords: Compressive strength, E-waste, Pollution.
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Selecting the correct proportion of ingredients of concrete like cement, fine aggregates, coarse aggregate and water is very essential during mix design, to produce the concrete of desired properties. The grade of cement, type of aggregates being used may vary but the strength is to be achieved as required.
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coarse aggregate with coconut shell aggregate is determined from the study. Coarse aggregate made from coconut shells were used in proportions of 5%, 10%, 15%, 20%, 25%, 30% and 35% to replace coarse aggregate in conventional concrete. A constant water to cement ratio of 0.5 was used throughout the study.
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The suitability of recycled plastics as coarse aggregate in concrete and its advantages are discussed here. The initial questions arising of the bond strength and the heat of hydration regarding plastic aggregate were solved. Tests were conducted to determine the properties of plastic aggregate such as density, specific gravity and aggregate
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crushing strength of course aggrgate for m10 concret. crushing strength of course aggrgate for m20 concret. M10, M15 etc., where M stands for Mix and the following number stands for characteristic compressive strength(fck) of concrete in 28 days in the Direct Compression test.For example, If the ratio of M20 concrete is 1:1.5:3, then 1 part of cement, 1.5 parts of sand and 3
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crushing strength of course aggrgate for m10 concret. crushing strength of course aggrgate for m20 concret. M10, M15 etc., where M stands for Mix and the following number stands for characteristic compressive strength(fck) of concrete in 28 days in the Direct Compression test.For example, If the ratio of M20 concrete is 1:1.5:3, then 1 part of cement, 1.5 parts of sand and 3
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For all type of coarse aggregate, 75 cubes (150 x 150 mm) were cast to permit the compressive strength to be observed at 3, 7, 14, 21, compressive strength of concrete mixes is m15 and m20. From the literature review, it is observed that researches have been attempted on various aspects
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Compressive strength of M20 concrete at 14 days: Making of at least 3 concrete cube size each 150mm×150mm×150mm in mould by cement sand and aggregate ratio 1:1.5:3, use tamping rod for levelling the surface of mould, it is kept for 24 hours setting after water mix in concrete, after 24 hours it is kept in water for curing for 14 days. And taken out just before test 14 days to find out
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To obtain high strength concrete, coarse aggregate size is usually held to a maximum size of 19 mm, but additional cement is required for the additional surface area. The fine aggregate can generally contain less material passing 300 um and 150 um sieve because of the higher cement content.
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As shown in Figure 15, LECA concrete showed minimum thermal conductivity when used as a whole in place of coarse aggregate while control concrete showed maximum k value, i.e., 2.3 W/mK.
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Answer (1 of 3): Quantity of coarse aggregates depends on type of concrete, say normal, self compacting etc. Amount of coarse aggregate in 1m³ of concrete for M20 grade is, Normal concrete - 900-1050 kg. Self compacting Concrete - 800 - 950kg. This values are as per industrial practise and ca...
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crushing strength of course aggrgate for m10 concret. crushing strength of course aggrgate for m20 concret. M10, M15 etc., where M stands for Mix and the following number stands for characteristic compressive strength(fck) of concrete in 28 days in the Direct Compression test.For example, If the ratio of M20 concrete is 1:1.5:3, then 1 part of cement, 1.5 parts of sand and 3
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Selecting the correct proportion of ingredients of concrete like cement, fine aggregates, coarse aggregate and water is very essential during mix design, to produce the concrete of desired properties. The grade of cement, type of aggregates being used may vary but the strength is to be achieved as required.
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Concrete Mix Design Data Required for Concrete Mix Design (i) Concrete Mix Design Stipulation (a) Characteristic compressive strength required in the field at 28 days grade designation — M 25 (b) Nominal maximum size of aggregate — 20 mm (c) Shape of CA — Angular (d) Degree of workability required at site — 50-75 mm (slump) (e) Degree of quality control available at site — As per IS
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The mix design for M20 grade concrete was done according to IS 10262-2019; Fig 3.1 shows the methodology adopted for assessment of compressive strength of concrete. Aggregate Cement Water Plastic chips Cement concrete mix M20 Partial replacement of coarse aggregate with 10% plastic chips Partial replacement of coarse aggregate with 20% plastic
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