Different Grades of Concrete, Their Strength and … - Compressive Strength of Concrete -Cube Test, Procedure, Results
The present experimental investigation were carried on fly ash, crusher dust, Bottom ash and GGBS partially replaced in the ratio of 10%, 20%, 30% by weight of cement and fine aggregate in concrete. The compressive Strength at the age of 3 days, 7 days and 28 days was obtained and also it is tested while adding admixture for same ratios for ...Then compressive strength test is conducted to find the strength. Normal grades of concrete are M15, M20, M25, and so on. For plain cement concrete works, usually, M15 is used. For reinforced concrete construction minimum M20 grade of concrete is used. There are two types of concrete mixes, nominal mix, and design mix.