Is it good practice to use M20 grade concrete for footing, column, beam, slab of G+3 residential building (1500SF)? - Quora
If you understand the fundamentals, you will be better able to keep costs down, improve the strength of your concrete, and minimize cracking.<br> | JLC Online
![How much cement, sand & aggregate required for M25,M20,M15,M10 & M7.5 concrete - Civil Sir | Grade of concrete, Concrete mix design, Concrete How much cement, sand & aggregate required for M25,M20,M15,M10 & M7.5 concrete - Civil Sir | Grade of concrete, Concrete mix design, Concrete](https://i.pinimg.com/736x/91/f1/fc/91f1fc536361548db2cbb02141ceb57d.jpg)