I Have concrete mix with 440kg opc and having 37 mpa
strengh in 7days while in 28 days only 42mpa can anybody
tell me the reason for the same.
Answers were Sorted based on User's Feedback
Answer / imran
The reason behind this is that
on an average a concrete
attains 70 to 80%
compressive strength in 7
days whereas more than 90%
strength in 28 days
Is This Answer Correct ? | 19 Yes | 1 No |
Answer / b.srinivasarao
if in OPC C3S(Tri-calcium silicate)is more than the required
percentage then we will get 90%-95% of 28 days strength in
7 days
Is This Answer Correct ? | 4 Yes | 0 No |
Answer / sjtbehera
REASON may very
1. mixing is not correct
2. qty. of mixing is incorrect
3. water cement ratio is high
4. slump is very high
Is This Answer Correct ? | 3 Yes | 13 No |
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