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Question
What is the design mix? What is the proportion for M25, 
M35, M40 concrete mix.
 Question Submitted By :: Civil-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
calculation of cement, fine aggregate,coarse aggregare and water to get a desired workable concrete.
Proportion of M25 1:1:2
 
Is This Answer Correct ?    90 Yes 16 No
Sudhir.rao
 
Answer
# 2
Design mix is to attained the specific strength of concrete
in 28 days .M25 means whos Cube test results are 25N/SQMM
after 28 days.Proportion in Different grade of mix is
decided by Trial mix in Lab,For which there is different
cement values.
 
Is This Answer Correct ?    48 Yes 15 No
Rakesh
 
 
 
Answer
# 3
pl. answer 
Is This Answer Correct ?    22 Yes 13 No
Sivaprakasam
 
Answer
# 4
if it is design mix, then the proportion can be known only
after establishing the design mix.
 
Is This Answer Correct ?    6 Yes 0 No
Kdg
 
Answer
# 5
We cann't fix the proportion like Nominal Mixes...because in
above Concrete mixes, Locally available Material are
influence the Strength...and in M-40 we could not fix
because these mix design can't prepare without Plasticizers...
 
Is This Answer Correct ?    3 Yes 1 No
Ujjawal Daharwal
 
Answer
# 6
pl.answer 
Is This Answer Correct ?    10 Yes 9 No
Sivakumar
 
Answer
# 7
M 25 1:1.5:3 
Is This Answer Correct ?    32 Yes 108 No
Ronak
 

 
 
 
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