How many cement bags and sand is required for M20 grade of concrete?
Well, pre-pack concrete is not exactly the correct term. Either you're talking about pre-mixed (prepackaged) concrete or preplaced aggregate concrete. Both of them are often confused as pre-pack concrete. Pre-mixed or prepackaged concrete is a mixture of the exact amount of materials, including coarRead more
Well, pre-pack concrete is not exactly the correct term. Either you’re talking about pre-mixed (prepackaged) concrete or preplaced aggregate concrete. Both of them are often confused as pre-pack concrete.
Pre-mixed or prepackaged concrete is a mixture of the exact amount of materials, including coarse and fine aggregates, cement, and dry admixtures with a specific mix design ready and packed in a bag. You open the bag, empty the contents, add the specified volume of water, mix it, and apply.
Preplaced aggregate concreting is a method where reinforcement and coarse aggregates are already put in the formwork. The formwork is filled with grout (mortar) with the use of pipes or tremies.
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nikeetasharma
Mostly the ratio of 1:1.5:3 is used for M20 grade of concrete So, Volume of dry concrete = 1.54 to 1.57 times volume of wet concrete Assume, 1cum of concrete work ratio sum = 1+1.5+3 = 5.5 shrinkage or safety factor = 1.57 Total volume of wet concrete required is = 1.57cum Volume of broken stone reqRead more
Mostly the ratio of 1:1.5:3 is used for M20 grade of concrete
So, Volume of dry concrete = 1.54 to 1.57 times volume of wet concrete
Assume, 1cum of concrete work ratio sum = 1+1.5+3 = 5.5
shrinkage or safety factor = 1.57
Total volume of wet concrete required is = 1.57cum
Volume of broken stone require = (3/5.5) * 1.57 = 0.856 m3
Volume of sand require = (1.5/5.5) * 1.57 = 0.471 m3
Volume of cement = (1/5.5) * 1.57 = 0.285 m3
=0.285*1440 =411 kg
For 1 m3 of M20 (1:1.5:3)
Broken stone = 0.856 m3
Sand = 0.472 m3
Cement = 8.22 bag
Therefore,
See less8 bag of cement is required for 1cum of concrete work in M20