华中科技大学学报（自然科学版）2017，Vol.45Issue(11)：57-61,5.DOI:10.13245/j.hust.171111
纤维对水泥基材料力学性能的影响
Effect of fiber on mechanical property of cementitious composite
摘要
Abstract
In order to prepare ultra high toughness cementitious composites (UHTCC) ,influence of different fibers and proportion on the mechanical properties of cementitious composites were discussed based on the compressive test ,the flexural test and the direct tensile test .Research results show that organic fiber decrease the compressive strength of UHTCC ,however ,the flexural strength increases . According to the mechanic properties and the cost of materials comprehensive consideration ,it is sug-gested that the optimal dosage of fiber is 2% ;the most significant of tensile strain hardening is Japa-nese polyving akohol (PVA ) fiber reinforced cementitious composites ,the following is the domestic PVA fiber ,and there is no strain hardening phenomenon in the domestic polypropylene (PP) fiber and polyethylene (PE) fiber under the direct tension .关键词
超高韧性的水泥基复合材料/PP纤维/PE纤维/PVA纤维/力学性能Key words
ultra high toughness cementitious composite/polypropylene (PP ) fiber/polyethylene (PE) fiber/polyving akohol (PVA) fiber/mechanical property分类
建筑与水利引用本文复制引用
李悦,朱金才,吴玉生..纤维对水泥基材料力学性能的影响[J].华中科技大学学报（自然科学版）,2017,45(11):57-61,5.基金项目
国家自然科学基金资助项目(51678011) （51678011）
北京市属高等学校高层次人才引进与培养计划资助项目(CIT&TCD20150310). （CIT&TCD20150310）
