How to calculate cement, sand and coarse aggregate for ...
Bulking of Sand – If the moisture is present in the sand, then it makes the sand look bulkier, which could result in inadequate sand proportion in the concrete ratio. If we need to add 1m 3 sand in the concrete mix ratio, we take m 3 (30% more). The reason for that is the moisture content present in the sand makes it a little bulkier.