whatis the minimum strength required for M-25 grade
concrete in 14days compressive test? What is the procedure
of calculation?
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Answer Posted / prosun roy
A Concrete block when tested for compressive strength must
exibit a minimum of 70% strength by 14 days as per IS.
However it is seen concrete usually gains more than 90% of
its characteristics strength by that period if O.P.C is
used, PPC may delay.
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