混杂纤维增韧高性能混凝土的研究  

Study of High Performance Concrete Reinforced with Hybrid Fibers

作　　者：姚武[1] 蔡江宁[1] 陈兵[1] 吴科如[1] 

机构地区：[1]同济大学混凝土材料研究国家重点实验室,上海200092

出　　处：《三峡大学学报（自然科学版）》2002年第1期42-44,共3页Journal of China Three Gorges University：Natural Sciences

基　　金：国家自然科学基金资助项目 (5990 80 0 7)

摘　　要：研究并讨论了碳纤维 钢纤维混杂对高性能混凝土力学性能的影响 研究结果表明 ,在较低体积掺量下 (0 .5 % ) ,混杂纤维混凝土的抗压、抗拉强度、断裂能和抗弯韧性得到显著提高 ,其中I3 0 韧性指数提高了 2 0 0 % ,断裂能提高了 2Mechanical properties of high performance concrete reinforced with carbon steel hybrid fibers have been studied and discussed. Test results show that in a relatively smaller volument′c fraction (less than 0.5%), the compressive and tensile strengths of concrete have been improved obviously. Moreover, the toughness index I 30 and fracture energy for the hybrid fibers reinforced concrete have been increased more than 200% and 21 times respectively compared with normal concrete.

关 键 词：高性能混凝土 韧性 混杂纤维 断裂能 

分 类 号：TU528.572[建筑科学—建筑技术科学]