What are the Grades of Concrete according to IS:456?
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In this booster, you will learn - 1. How to find characteristics strength of concrete? 2. What are the grades of concrete described in IS 456?
What are the Grades of Concrete according to IS:456?
- 2. MachenLink What are the grades of concrete according to IS 456: 2000 ? Grade of Concrete is measured by standard compression test on concrete cube of 150 . 150 M 20 M refers to mix Characteristics compressive strength () expressed in MPa (N/mm2 ) Its is defined as the strength of material below which not more than 5% result are expected to fall. 20 samples During compression test on cube in laboratory. Not more than 1 in 20 tests result fall below the characteristic value Test results 23.8, 25.4, 26.9, 27.6 20 results25.1, 27.3, Increasing order Grade of concrete M 25 fck = 25 N/mm2 Types of concrete Grade High Strength concrete Above M 60 Standard Strength concrete M25 to M 55 Normal Strength concrete M 10 to M20