HOW TO CALCULATE BAGS OF CEMENT, SAND & GRANITES IN A ...
Similarly a concrete mix ratio of 1:1.5:3 means for 1 head-pan of cement you need to mix 1.5 head-pans of sand and 3 head-pans of granite. Estimating the Quantities of Portland Cement, Sand and Gravel from Building Plan, first calculate the volume of Concrete to know the quantity of cement, sand and granite that you need for the work.