Test Research on Mechanical Property of GFRP Bolt under Freeze-Thaw Cycle Conditions

摘要：

　　In this paper,GFRP bolts in diameter of 25mm are tested through freeze-thaw cycle by 50,100 and 150 times to study their change law of appearance,weight,strength and elastic modulus.As reflected from the test results,after the freeze-thaw cycle,the appearance and weight of GFRP bolts are basically not changed.As the freeze-thaw cycle increases from 50 times to 100 times,the strength of bolts decreases gradually.After 50,100 and 150 times of freeze-thaw cycle,the ultimate tensile strength of bolt decreases by 2.82%,4.35% and 8.84%,respectively.During the process that the times of freeze-thaw cycle increase from 50 to 100,the elastic modulus of GFRP bolts grows gradually.After 50,100 and 150 times of freeze-thaw cycle,the elastic modulus increases by 1.42%,2.68% and 3.92%,respectively.The freeze-thaw cycle leads to embrittlement of GFRP materials and weakness of ductility,while not obviously.

关键词： GFRP Durability Anchoring Freeze-Thaw Cycle

作者: Xiexing Tang Xiaoyong Luo Qi Sun Yachuan Kuang

作者单位: School of civil engineering, Central South University, Changsha, Hunan, 410083, China

会议类型: 国际会议

会议名称: the 2012 International Conference on Materials Science and Nanotechnology (2012年材料科学与纳米技术国际会议(ICMSN 2012))

会议地点: 广州

会议语种:英文

页码: 689-694

在线出版日期: 2012-11-16（万方平台首次上网日期，不代表论文的发表时间）