#### Bulk Density and Void Percentage Test for Aggregates

The cement mixed with fine aggregate to have mortar for plaster and masonry, and with sand and coarse aggregate to give concrete. As I said, earlier density is the material's mass per unit volume. Since we measure mass in kg or lb and volume in litre or cubic meter or cubic feet, hence density is stated in Kg/m 3 or lb/ft 3 .