EXPERIMENTAL INVESTIGATION ON MECHANICAL PROPERTIES OF HYBRID FIBER REINFORCED STRAIN HARDENING ULTRA-HIGH PERFORMANCE CONCRETE (SHUHPC)

摘要：

　　This study aims to further improve the mechanical properties of strain hardening ultra-high performance concrete by hybrid steel/PE fibres system.Because of characteristic of concrete cracking process, hybrid use among various kinds of fibres can increase the strength and restrain the generation and development of cracks at different level.By this way, the final compressive strength increase from 132.97MPa to 175.6MPa with a little decrease of tensile strain from 6.01% to 5.11% when designed the total fibre content less than 2.5%.The effects of hybrid steel/PE fibers on the first cracking strength, tensile strength, crack numbers and average crack width were also discussed depending on the experimental results.

关键词： Mechanical properties Hybrid fiber reinforced strain hardening ultra-high performance concrete Fibre Crack

作者: Tianan Liu Yingzi Yang Fuzheng Sun Ruixiang Bai

作者单位: Key Lab of Structures Dynamic Behaviour and Control of the Ministry of Education, Harbin Institute of Technology, Harbin 150090, China;Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology, Harbin Institute of Technology, Harbin, 150090, China;School of civil engineering, Harbin Institute of Technology, Harbin, 150090, China

会议类型: 国际会议

会议名称: The 2nd International Conference on UHPC Materials and Structures, UHPC2018-China(第二届超高性能混凝土材料和结构国际会议)

会议地点: 福州

会议语种:英文

页码: 548-556

在线出版日期: 2018-11-07（万方平台首次上网日期，不代表论文的发表时间）