I Have concrete mix with 440kg opc and having 37 mpa strengh in 7days while in

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.

Question Posted / dharmendraa kumar

4 Answers
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I Have concrete mix with 440kg opc and having 37 mpa strengh in 7days while in 28 days only 42mpa ..

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

I Have concrete mix with 440kg opc and having 37 mpa strengh in 7days while in 28 days only 42mpa ..

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

I Have concrete mix with 440kg opc and having 37 mpa strengh in 7days while in 28 days only 42mpa ..

Answer / teerath singh

Mix Desgin in carrect

Is This Answer Correct ?

2 Yes

5 No

I Have concrete mix with 440kg opc and having 37 mpa strengh in 7days while in 28 days only 42mpa ..

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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