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
Discussion:
62 comments Page 7 of 7.
Ashok said:
9 years ago
IS 456-2000 has designated the concrete mixes into a number of grades as M10, M15, M20, M25, M30, M35 and M40. In this designation the letter M refers to the mix and the number to the specified 28 day cube strength of mix in N/mm2. The mixes of grades M10, M15, M20 and M25 correspond approximately to the mix proportions (1:3:6), (1:2:4), (1:1.5:3) and (1:1:2) respectively.
Abhi said:
1 decade ago
Standarad concrete is 7 m20 to m60.
High strength is m65 t0 m80.
Ordinary strength 3m m10 to m20.
High strength is m65 t0 m80.
Ordinary strength 3m m10 to m20.
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