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Question
`what is the compresive strength  of m20 concrete at 7 day`
I also faced this Question!!     Rank Answer Posted By

Re: what is the compresive strength of m20 concrete at 7 day
# 1
as m20 is specification .as we know compressive strength of
M20 after curing will be 20kn/m2.but after 7 days it will
gain 60% strength..........

 Is This Answer Correct ? 38 Yes 16 No
Ak Mishra

Re: what is the compresive strength of m20 concrete at 7 day
# 2
135 N/mm2
 Is This Answer Correct ? 17 Yes 40 No
Rajesh

Re: what is the compresive strength of m20 concrete at 7 day
# 3
Its should be 65-67% of m20 = 13.4KN/mm2
 Is This Answer Correct ? 34 Yes 6 No
Modipraveen
[Modi Constructions & Consultant]

Re: what is the compresive strength of m20 concrete at 7 day
# 4
It should be 60-65%
 Is This Answer Correct ? 15 Yes 13 No
K.sivasaravanan

Re: what is the compresive strength of m20 concrete at 7 day
# 5
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.

 Is This Answer Correct ? 3 Yes 15 No
Alfonso

Re: what is the compresive strength of m20 concrete at 7 day
# 6
It should be atleast 26.60 N/mm2
 Is This Answer Correct ? 4 Yes 14 No
Maverick

Re: what is the compresive strength of m20 concrete at 7 day
# 7
IT SH'D have 2/3 of its strength after 7 days
 Is This Answer Correct ? 11 Yes 2 No
Nakkeeran.raja
[V3S Infratech Ltd]

Re: what is the compresive strength of m20 concrete at 7 day
# 8
it should be 67% in 7 days. 13.4 N/mm2
 Is This Answer Correct ? 11 Yes 0 No
Prabin J

Re: what is the compresive strength of m20 concrete at 7 day
# 9
Compressive Strength for M20 concrete in 7 days is 175 kg/sq.cm.
 Is This Answer Correct ? 4 Yes 5 No
Mohammed Aijaz Hussain

Re: what is the compresive strength of m20 concrete at 7 day
# 10
the concrete must have attained 2/3 of the streght = 13.5-14kn/m2
 Is This Answer Correct ? 5 Yes 0 No

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