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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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What is the minimum depth of a slab?   3
what is the requierd compressive strenth for m 20 grade concreat for 7 days?   8
why shear reinforcement is not provided in the design of footing?   2
by which IS Code bend correction is two times of the dia meter of steel is taken   3
I had a plot of say 5000 sq.ft. and soil in the plot is normal soil. Now I had to work upon the tender quantities to prepare a preliminary budget within a day. Is there any thumb rule or assumptions to calculate the quantities which can differ upto 15% +/-?   2
What is Flat/Canceled beam, What is difference between them? can bear same load? kindly suggest me   1
Why alternate bars are given bent-up in slab and how to decide the length of bent up?   3
Where on net can i find IS Codes?   9
how to do rate analysis for P.C.C 1:4:8 for 2.83cum(100cft) Unity-Infraprojects 2
 
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