Civil Engineering - Concrete Technology - Discussion

Discussion Forum : Concrete Technology - Section 1 (Q.No. 8)
8.
According to I.S. : 456, the number of grades of concrete mixes, is
3
4
5
6
7
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
62 comments Page 7 of 7.

Koushik Ghosh said:   3 years ago
Nominal grade of concrete 5 nos.
M5, M7. 5, M10, M15, M20.

Standard Grade of Concrete 7 nos.
M25, M30, M35, M40, M45, M50, M55.

High Strength of Concrete 5 NOs.
M60, M65, M70, M75, M80.
(23)

Biplab Sarkar said:   2 years ago
As per IS456-20, amendment 4.

Ordinary Concrete : M10,M15,M20 (3Nos).
Standard Concrete: M25-M60 (8Nos).
High Strength Concrete: M65-100 (8Nos).
(13)


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