Civil Engineering - Concrete Technology - Discussion
Discussion Forum : Concrete Technology - Section 1 (Q.No. 43)
43.
M 150 grade of concrete approximates
Discussion:
108 comments Page 1 of 11.
Mohan b said:
9 years ago
Concrete Grade Proportion of Cement : Sand : Stone pieces.
Expected Compressive Strength at 28 days.
M100 ---> 1 : 3 : 6 10 N/mm^2 or 100 Kg/cm^2.
M15 or M150 ---> 1 : 2 : 4 ---> 15 N/mm^2 or 150 Kg/cm^2.
M20 or M200 ---> 1 : 1.5 : 3 ---> 20 N/mm^2 or 200 Kg/cm^2.
M25 or M250 ---> 1 : 1 : 2 ---> 25 N/mm^2 or 250 Kg/cm^2.
Expected Compressive Strength at 28 days.
M100 ---> 1 : 3 : 6 10 N/mm^2 or 100 Kg/cm^2.
M15 or M150 ---> 1 : 2 : 4 ---> 15 N/mm^2 or 150 Kg/cm^2.
M20 or M200 ---> 1 : 1.5 : 3 ---> 20 N/mm^2 or 200 Kg/cm^2.
M25 or M250 ---> 1 : 1 : 2 ---> 25 N/mm^2 or 250 Kg/cm^2.
Deepak Baswal said:
8 years ago
(IS 456-1964) = IS 456-1978)-------->Ratio.
M50 = M 5------------------- -> 1:5:10.
M75 = M7.5 -------------------> 1:4:8.
M100 = M 10 ---------------------> 1:3:6.
M150 = M 15 --------------------> 1:2:4.
M200 = M 20----------------- -> 1:1.5:3.
M250 = M 25 ------------------> 1:1:2.
M50 = M 5------------------- -> 1:5:10.
M75 = M7.5 -------------------> 1:4:8.
M100 = M 10 ---------------------> 1:3:6.
M150 = M 15 --------------------> 1:2:4.
M200 = M 20----------------- -> 1:1.5:3.
M250 = M 25 ------------------> 1:1:2.
Ankit Jaiswal said:
8 years ago
Answer will be none of these, because above M25 as per Indian Standard are mix design, not nominal mix it. It uses, wherever we need to achieve desired strength as per project or clients need.
Bhavya DL said:
5 years ago
M10 - 1:3:6.
M15 - 1:2:4.
M20 - 1:1.5:3.
M25 - 1:1:2.
1:4:8
M30 - 1:5:10
1:6:12.
M35 - post-tensioned prestressed concrete.
M40 - pre-tensioned prestressed concrete.
M15 - 1:2:4.
M20 - 1:1.5:3.
M25 - 1:1:2.
1:4:8
M30 - 1:5:10
1:6:12.
M35 - post-tensioned prestressed concrete.
M40 - pre-tensioned prestressed concrete.
Karmveer dhayal said:
1 decade ago
Question is wrong because M150 is design mix concrete so by can not determine the actual ratio. It is vary according to our structure type and 1:1:2 is proportion of M25.
Amlan Debnath said:
1 decade ago
@Karmveer is right. M150 is design Mix Not Nominal mix so we cannot determined the actual ratio. & 1:1:2 is the proportion of M25.
Anand Ratan said:
6 years ago
M 5 = 1:5:10
M 7.5 = 1:4:8
M 10 = 1:3:6
M 15 = 1:2:4
M 20 = 1:1.5:3
M 25 = 1:1:2
M 30 = 1: 1:3
Correct answer is C .
M 7.5 = 1:4:8
M 10 = 1:3:6
M 15 = 1:2:4
M 20 = 1:1.5:3
M 25 = 1:1:2
M 30 = 1: 1:3
Correct answer is C .
(1)
KESAVAN CIVIL said:
7 years ago
M150 means 150 kg/cm2 as per IS 456:1978.
After revision IS 456:2000 IS M15.
So, the correct option is 1:2:4.
After revision IS 456:2000 IS M15.
So, the correct option is 1:2:4.
RAJ said:
7 years ago
As per IS 456-2000.
M 5 =1:5:10.
M 7.5 =1:4:8.
M 10 =1:3:6.
M 15 =1:2:4 Ans.
M 20 =1:1.5:3.
M 25 =1:1:2.
M 5 =1:5:10.
M 7.5 =1:4:8.
M 10 =1:3:6.
M 15 =1:2:4 Ans.
M 20 =1:1.5:3.
M 25 =1:1:2.
Rahul Gupta said:
8 years ago
The given answer for a question of M25 but it ask M15 so Given answer is wrong correct Answer is 1:2:4.
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