why loss of strength in concrete in 7 days cube test i am
not geting mim 7 days strength that is 67 percent for M-35
and my mix design is perfect there is no doughty,and my
results are near to 7days percentage but not 67 percent.
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Answer Posted / bhauso mane
there are many reasons of concrete failure result as bellow
1)water to cement ratio - increasing water cement ratio
decreases the strength of concrete.
2)quality of cement- firstely check the quality of cement .
3)raw material properties like silt in sand,flaky,
elogation,& hardness of aggregate.
4)mixing & sampling of concrete.
5)compaction & curing of cubes.
6)test machine accuracy.
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