Q.
What is the crashing strength of m15
Asked by Mahendra Tiwari,
24 Aug '12 10:23 pm
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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
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
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2.
Compressive strength of M15 in 7 days is 3/4 of its strength.
Answered by jakir hussain, 24 Aug '12 10:29 pm
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