How to calculate cement, sand and coarse aggregate quantity in concrete?
Quantity of materials such as Cement, sand and coarse aggregate for concrete can be calculated by absolute method. In this method , the volume of fully compacted concrete is equale to the absolute volume of all the material pf concrete i.e. Cement, Sand, water, admixture and coarse aggregate. Concrete structure may be type of slab, column, footing, staircase,, curb stone, circular column which is based on type of structure. The volume of the concrete required for this, can be calculated by summing up the volumes of each structure member.
Construction Calculator A1
The volume of the rectangular column can be calculated as Length X width X Height.
The suitable formula is used for different shapes.
Concrete calculator calculation- Calculate quantities of material for concrete
Concrete volume= 124 m³
Dry volume= 1.55 m³
Mix design is M20
Mix Ratio for M20 is 1: 2.48: 3.55
Calculate concrete parts using by formula
Concrete parts = Cement part + sand part + aggregate part + admixture
Cement quantity = (Cement part / Concrete parts) * Concrete volume * Dry Volume
Cement quantity = (1/7.04) * 124 *1.55 =27.30 m³
Density of cement = 1440 kg/m³
Weight of cement = 27.3 * 1440 = 39313.64 Kg
Weight of cement bags = 50kg
Total bags = 39313.64 / 50 = 786 cement Bags
Sand quantity = (2.48 / 7.04) * 124 * 1.55 = 67.707 m³
Aggregate Quantity = (3.55 / 7.04) * 124 * 1.55 = 96.919 m³
Admixture quantity = Cement quantity * Admixture
Admixture quantity = 39313.636 * 0.01 = 393.136 Kg
Water quantity = Cement volume * water-cement ratio
Water quantity = 27.301 * 0.5 = 13.650 m³
Unit weight of water = 1000 Liters/m³
Required amount of water = 13.650 * 1000 = 13650 Litres
Cement 39313.636 Kg
Sand 67.707 m³
aggregate 96.919 m³
Admixture 393.136 kg
Water 13650.568 Litres