CF40混凝土中钢纤维合理掺量的确定

HOW TO DETERMINE THE QUANLITY OF THE ADDITION OF STEEL FIBER IN CF40 CONCRETE

当混凝土中掺入钢纤维后,随着钢纤维掺量的增加,由于钢纤维与混凝土基体的良好粘结作用,使混凝土孔隙率减少,提高了混凝土的密实度,强度随之提高。本文研究钢纤维掺量对混凝土技术性能的影响,当钢纤维掺量达到1.4%时,增幅最大,抗压强度的增长幅度最高达到27.6%,抗拉强度的增长幅度达到33.7%。

Because of a firm cement between steel fiber and concrete, so, with the increase of the addition of steel fiber in concrete, the pore volume decreased and the density and strength risen. This article study how the quantity of the addition of steel fiber affect the technology properties of concrete. When it is 1.4% of the addition of steel fiber in concrete, the growth rate of pressive strength is 33.7%.