纤维自密实水泥基补强材料抗裂性能研究  

Research on Performance of Crack Resistance of Fiber Self-Compacting Reinforced Cement Material

作　　者：蔡怀森[1] 郑光和[1] 张凯[1] 

机构地区：[1]黄河水利科学研究院,河南郑州450003

出　　处：《人民黄河》2012年第3期143-144,148,共3页Yellow River

基　　金：黄河水利科学研究院中央级公益性科研院所基本科研业务费资助项目(HKY-JBYW-2009-21)

摘　　要：纤维自密实补强材料抗裂性能研究结果表明:当PP纤维掺量相同时,自密实补强材料的开裂指数随着纤维长度的增加而降低;同样长度的纤维,在一定掺量范围内,开裂指数随着纤维掺量的增加而降低;纤维长度相同、掺量相同时,掺加PVA纤维补强材料的抗裂效果好于掺加PP纤维的补强材料;在相同条件下,掺加硅粉可以提高纤维补强材料的抗裂性能。The performance of crack resistance of fiber self-compacting reinforced material was studied. The results show that the performance of crack resistance of the material is increased substantially by joining fiber; add the same quality of PP fiber, the crack index of self-compacting rein- forced material decrease with the increase of the length of PP fiber; as the same length of fiber, in a certain quality range, the crack index decrease with the increase of the quality of fiber; on the same length and quality of fiber, performance of crack resistance of add PVA fiber is better than that add PP fiber; under the same conditions, add silica fume can improve the performance of crack resistance of the reinforced material.

关 键 词：抗裂性能 自密实 PP纤维 PVA纤维 补强材料 

分 类 号：TU528.572[建筑科学—建筑技术科学]