Grades Of Concrete | M20 Grade Of Concrete | M20 Concrete Mix Ratio

In construction, there should be individual strength for each building element. To maintain the strength of concrete for different elements, various types of concrete grades are required. The strength needed for foundation, beam, slab etc. will be different. IS 456-2000 has specified the concrete mixes into a number of grades as M10, M15, M20, M25, […]