cement sand stone ratio concrete calculator
Ratio 1 : 3 : 3. 1 part AfriSam High Strength Cement + 3 parts coarse sand + 3 parts stone. Quantities per m³ of Concrete. To make a mix for 1 cubic metre of high-strength concrete you will need 6,59 bags of AfriSam High Strength Cement + 0,64 cubic metres of coarse sand + 0,64 cubic metres stone. We suggest adding an extra 10% for wastage.