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what is the compresive strength of m20 concrete at 7 day
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Answer Posted / alfonso
compressive strength of concrete for 21 day curing period
is 21 MPa whic is equal to :
= 2,100 N / mm2
= 2.10 KN / mm2
for a 7 day curing period, strength will be 1/3 of the
comp.stregth.
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