纺织学报 ›› 2005, Vol. 26 ›› Issue (2): 18-20.

• 科研报告 • 上一篇    下一篇

湿热环境下CFRP-水泥砂浆的抗弯性能

熊杰1;徐新建1;萧庆亮1;许淑燕1,2   

  1. 1.浙江理工大学先进纺织材料与制备技术教育部重点实验室 浙江杭州310033;2.杭州职业技术学院;浙江杭州310018
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2005-04-15 发布日期:2005-04-15

Flexural properties of CFRP-cement mortar under moisture and heat environment

XIONG Jie 1;XU Xin-jian 1;XIAO Qing-liang 1;XU Shu-yan 1;2   

  1. 1.Key Laboratory of Advanced Textile Materials and Manufacturing Technology;Ministry of Education;Zhejiang University of Science and Technology;Hangzhou;Zhejiang 310033;China; 2.Hangzhou College of Vacation Technology;Hangzhou;Zhejiang 310018;China
  • Received:1900-01-01 Revised:1900-01-01 Online:2005-04-15 Published:2005-04-15

摘要: 1.Key Laboratory of Advanced Textile Materials and Manufacturing Technology;Ministry of Education;Zhejiang University of Science and Technology;Hangzhou;Zhejiang 310033;China; 2.Hangzhou College of Vacation Technology;Hangzhou;Zhejiang 310018;China

Abstract: The flexural properties of cement mortar externally bonded carbon fiber sheets under different moisture and heat environment were studied by means of three-point bending test.The fracture modes of CFRP-cement mortar system were examined.The experimental results show that when the specimens were immersed in 25 ℃ water for 1 to 5 days,their strength did not change with the time.When the specimens were immersed in 60 ℃ water for 1 to 5 days,their strength increased with the time.When the specimens were immersed in 90 ℃ water for 1 to 5 days,their strength increased for 1 to 3 days,but decreased for more than 3 days.The fracture modes of CFRP-cement mortar specimen were accumulation with certain ductility,when they were immersed in 25 ℃ and 60 ℃ water for 1 to 5 days,as well as 1 to 3 days at 90 ℃.But when they were immersed in 90 ℃ water for 5 days,the brittle collapse took place.

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