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how do we calculate the quantity cement,sand, & aggregate
for M20,M15 for 10cum.
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Answer Posted / piyush singh
according to the IS method of design mix
1. select the grade of concrete
2. select the target strength using the equation
f(target) = Fck (selected grade) + 1.65 * sd
3. a) using the table given in IS select the maximum cement
. content
b) selecct the nominal size of the aggregate
c) water cement ration
4. then procced as code says.. and u will get actual amount
of cement , fa ,ca ,water needed for 1 M^3
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