Project on Concrete Mix Design for various grades of Concrete

Target strength - 183.25 kn/m²

Water cement ratio - 040

Selection of water content

Maximum water content for 20mm aggregate - 186litre

Estimate water content - 197 litre

The water content reduces 30%

Arrived water content - 197*071 =140 litre

Water cement ratio - 04

Volume of coarse aggregate - 0.62*0.9=0.56

Volume of fine aggregate = 1-0.56 = 0.44

Mix calculation

Volume of concrete 1.m³

Volume of cement - 0.086 m³

Volume of water = 0.140

Volume of chemical admixture = 0.006m³

Volume of aggregates = (1 - (0.086+0.052+0.140+0.006))

= 0.716 m³

Mass of water content = 1098 m³

Mass of aggregate = 863 m³

Cement = 270 kg/m³

Water = 140 kg/m³

Fine aggregate = 863 m³

Coarse aggregate = 1098 m³

Chemical admixture = 7 kg /m³

Water cement ratio - 0.364