Concrete composition

Abstract

To provide a concrete composition with high fluidity that exhibits excellent frost damage resistance while retaining its fluidity and material separation resistance.SOLUTION: A concrete composition comprises (A) cement, (B) water, (C) aggregate, (D) a water-reducing agent, (E) hydroxyalkyl alkyl cellulose and (F) a polyethylene glycol derivative, where (F) polyethylene glycol derivative has an IOB value in the organic conception diagram of 0.3 to 1.8 and a weight average molecular weight Mw of 300 to 2,500 in terms of polystyrene as measured by GPC analysis, and contains at least one RCOO(C2H4O)n- (where R is a C10-C24 straight or branched monovalent hydrocarbon group and n is an integer of 3 to 40) in the molecule and a polyethylene glycol end OH or -OH group as a functional group. The concrete composition has a slump flow of 35 cm or more and 75 cm or less.SELECTED DRAWING: None