Patent ID: 8147609

Claim:
A self-consolidating concrete composition comprising: coarse aggregate in a range of from 600 to 1100 kgw/m 3 ; fine aggregate with a fineness modulus between 2.2 to 3.2, in a range of from 500 to 1100 kgw/m 3 ; powder containing at least cement, in a range of from 300 to 700 kgw/m 3 ; mixing water; cohesion-enhancing admixture; and superplasticizer; when the SCC composition is mixed, the water/cementitious material ratio is 0.22 to 1.00, paste volume 0.25 to 0.60 m 3 , and water to powder volume ratio 0.5 to 2.95; wherein the cohesion-enhancing admixture has a solid content of 0.1 to 5.0 wt % of the powder, the superplasticizer has a solid content of 0.1 to 3.0 wt % of the powder, the cohesion-enhancing admixture is used in a manner that the SCC composition has a flow value exceeding 500 mm under a L-flow test in which a bottom room is filled with water.