摘要
纤维是超高性能混凝土(UHPC)中最重要的原材料之一。除了在UHPC中掺入单一纤维之外,现有大量研究对混杂多种纤维UHPC的力学性能进行了研究。文中总结归纳了不同尺度、形状、材料纤维混杂对超高性能混凝土(UHPC)力学性能的影响。相比于掺入单独一种纤维,混杂纤维UHPC的准静态力学性能、动态抗冲击性能常常表现得更加优异。并且钢纤维与聚合物纤维混杂还能提高抗爆裂性能。
Fiber is one of the most important raw materials in Ultra-High Performance Concrete(UHPC).In addition to mixing a single fiber in UHPC,many existing studies focus on the mechanical properties of hybrid UHPC with multiple fibers.This article summarizes the effects of different sizes,shapes,and material fiber hybrids on the mechanical properties of UHPC.Compared to blending of a single fiber,the quasi-static mechanical properties and dynamic impact resistance of hybrid fiber UHPC are often with advantages.And the mixing of steel fiber and polymer fiber also improves the high temperature resistance of UHPC.
作者
张华
ZHANG Hua(Harbin FRP Research Institute Co.,Ltd.,Harbin 150028,China)
出处
《低温建筑技术》
2022年第4期38-43,共6页
Low Temperature Architecture Technology
关键词
UHPC
混杂纤维
力学性能
抗高温性能
UHPC
hybrid fiber
mechanical properties
high temperature resistance
