Abstract: The early crack of concrete is ubiquitous phenomenon in the engineering. Cracks seriously affect the durability of concrete, which is a hot research topic. The performance comparison tests of unfold capability of crack in the course of concreting are carried out between several flexible fiber dust plasma samples, in order to study the crack-resistance effect of different flexible fibers have on dust plasma samples at the same condition, which offers certain references to the design, construction and reinforcement of the bridge.

Key words: flexible fiber , dust plasma , concreting course , the unfold capability of crack , comparison ;

摘要： 混凝土早期开裂是工程中普遍存在的现象,裂缝严重影响了混凝土的耐久性,是混凝土研究中的一个热门话 题。通过对几种柔性纤维砂浆试件在凝固过程中裂缝开展性能比较试验,研究不同柔性纤维在相同掺量工况下对 砂浆试件的阻裂效果,为桥梁的设计、施工和加固提供了一定的参考。

关键词: 柔性纤维, 砂浆, 凝固过程, 裂缝开展性能, 比较