MODERATE FLOWABLE CONCRETE

PROBLEM TO BE SOLVED: To provide a moderate flowable concrete which secures flowability and prevents occurrence of a gap in a top end part, and in addition, prevents occurrence of bleeding, has uniform strength and quality and further, can prevent exfoliation of concrete piece or occurrence of a crack by the improvement of bending toughness. SOLUTION: The moderate flowable concrete includes cement, water, an admixture, an aggregate made of coarse aggregate and fine aggregate, a thickener and a reinforcing fiber and has 35-50 cm slump flow value. The reinforcing fiber is a stretched fiber composed of polypropylene as a main ingredient, the cross-sectional shape of the fiber is nearly quadrangle having four projecting parts, and recessed parts shaped with a prescribed interval along the longitudinal direction of the fiber are provided to the opposed two surface of the nearly quadrangle and recessed parts shaped with a prescribed interval along the longitudinal direction of the fiber are provided to the projection parts of the nearly quadrangle. COPYRIGHT: (C)2011,JPO&INPIT