Concrete Mix designs for M15,M20,M25,M30 and M35

Answer Posted / jebus dura. m.e.,civil

M 15 =1:2:4(ONE CEMENT,TWO SAND AND FOUR 20mm HBM JELLY)
M 20 =1:1.5:3 ratio
M 25 = 1:1:2
M 30 = 1:1:1
OTHERS DEPENDING UPON STEELS

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