Using your phone's internet browser
go to:  qna.rediff.com
Click and drag this link to
the Home icon in your browser.
Q.

What is the crashing strength of m15

Tags: careers, health, religion & spirituality
Asked by Mahendra Tiwari, 24 Aug '12 10:23 pm
  Invite a friend  |  
  Save  |  
 Earn 10 points for answering
Answer this question  Earn 10 points for answering    
4000 characters remaining  
  
    
Keep me signed inNew User? Sign up

Answers (3)

1.

Size of the cube =15cm x15cm x15cm
Area of the specimen (calculated from the mean size of the specimen )=225cm2
Characteristic compressive strength(f ck)at 7 days =
Expected maximum load =fck x area x f.s
Range to be selected is ..
Similar calculation should be done for 28 day compressive strength
Maximum load applied =.tones = .N
Compressive strength = (Load in N/ Area in mm2)=N/mm2
=.N/mm2
Answered by LIPSIKA, 24 Aug '12 10:26 pm

 
  
Report abuse
Useful
 (0)
Not Useful
 (0)
Your vote on this answer has already been received
2.

Compressive strength of M15 in 7 days is 3/4 of its strength.
Answered by jakir hussain, 24 Aug '12 10:29 pm

 
  
Report abuse
Useful
 (0)
Not Useful
 (0)
Your vote on this answer has already been received
3.

On 7th day 75%
on 28th day more than 100%
Answered by sigma, 24 Aug '12 10:25 pm

 
  
Report abuse
Useful
 (0)
Not Useful
 (0)
Your vote on this answer has already been received

Ask a Question

Get answers from the community

600 characters remaining