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Question
what is the compresive strength  of m20 concrete at 7 day
 Question Submitted By :: Nilamadhab
I also faced this Question!!     Rank Answer Posted By  
 
  Re: what is the compresive strength of m20 concrete at 7 day
Answer
# 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
Answer
# 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
Answer
# 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
Answer
# 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
Answer
# 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 ?    4 Yes 15 No
Alfonso
 
  Re: what is the compresive strength of m20 concrete at 7 day
Answer
# 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
Answer
# 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
Answer
# 8
it should be 67% in 7 days. 13.4 N/mm2 
Is This Answer Correct ?    12 Yes 0 No
Prabin J
 
  Re: what is the compresive strength of m20 concrete at 7 day
Answer
# 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
Answer
# 10
the concrete must have attained 2/3 of the streght = 13.5-14kn/m2 
Is This Answer Correct ?    5 Yes 0 No
Ginikanwa Nuga Adiele
 

 
 
 
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size of the traditional brick is 248*121*71 in mm,but why the size are like this.why the size are not like that 211*154*75 in mm Merlion 1
what is meant by belt in house construction? L&T 2
Characteristics of a model project are   1
What is the substitute of Mastic Asphalt? MPSC 2
the amount which paid to contractor before starting work. what does it calls? L&T 5
what is the difference between red bricks& cement bricks   2
Approximate size of the metal use for normal concrete?   3
As an engineer, what u should do when the construction of a building doesn't meet the required specifications?   9
How much used for sand per square meter in 12mm Thickness   1
 
For more Civil Engineering Interview Questions Click Here 
 
 
 
 
 


   
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