楔入劈拉试验下钢纤维混凝土断裂试验研究

摘要

steel fiber reinforced concrete is a kind of new multi-phase composite materials which short steel fiber was dis-tributed in plain concrete, steel fibers of these indiscriminate distributions can effectively prevent the expansion of the forma-tion of micro-cracks inside the steel fibers and macro cracks, significantly improves the concrete’ s tensile, flexural, impact and fatigue properties.%钢纤维混凝土是在普通混凝土中掺入乱向分布的短钢纤维所形成的一种新型的多相复合材料，在混凝土中加入钢纤维制成钢纤维混凝土，这些乱向分布的钢纤维能够有效地阻止钢纤维内部微裂缝的扩展及宏观裂缝的形成，显著的提高了混凝土的抗拉、抗弯、抗冲击和抗疲劳性能等。