Question How to calculate the volume of sand , aggregate and cement in 1m^3 of concrete? Take c-20 concrete Answer Example C-20 mix design (1:2:3) if we are given 1 m^3 concrete First we add up 1+2+3=6 Means 1 cement 2 sand 3 aggregate To calculate the the volume of sand 1 * 2/6= 2/6 m^3 =0.33m^3 To calculate the volume of aggregate (gravel) 1 * 3/6 = 0.5m^3 To calculate the volume of cement 1 * 1/6 = 0.167m^3 To calculate cement in piece 1 bag of cement is 0.036m^3 so divide the quantity of cement with a bag of cement Bag of cement = 0.167 / 0.036 = 4.6 So we use 5 bag of cement We consider dry volume not wet volume To convert dry volume to wet volume we multiply it by 1.54 Wet volume =1.54 dry volume 10% shrinkage 44% wastage Join @civil_engineering_home Join @civil_engineering_home 740 viewsedited 15:53
