GFRP筋耐海水侵蚀性能研究  

Research of GFRP'performance of resistance to sea water corrosion

作　　者：吴洁 刘小艳[2] 王新瑞[2] 明维[2] 

机构地区：[1]南京市水利建筑工程检测中心,江苏南京210011 [2]河海大学力学与材料学院,江苏南京210098

出　　处：《江苏建材》2012年第4期30-32,共3页Jiangsu Building Materials

摘　　要：在60℃加速腐蚀试验条件下,将25根I型GFRP筋和25根II型GFRP筋浸泡于海水溶液中,龄期分别为1、2、3、4、6个月,研究海洋环境对GFRP筋耐久性的影响。试验表明:随龄期增长,GFRP筋的力学性能呈衰减趋势;相比于弹性模量,溶液对其抗拉强度的影响更大;6个月后两种GFRP筋的抗拉强度保持率大于80%,表现了较好的抗海水腐蚀性能,有助于解决海洋工程中钢筋易锈蚀的问题。II型GFRP筋具有更好的耐久性,建议可用于实际的海洋工程中。25 Type Ⅰ GFRP bars and 25 Type Ⅱ GFRP bars soak in sea water solution under the accelerated corrosion condition of 60 ℃, with the age of 1, 2, 3, 4, 6 months, which studies the impact of marine environment on the durability of GFRP bars. Results show that, the mechanical performance of GFRP bars decreases along with the growth of the age. The solution has a greater influence on tensile strength than the modulus of elasticity. Six months later, the tensile strength of the two type GFRP bars remains more than 80%. This shows a good performance of resistance to sea water corrosion, contributing to the solution of steel corrosion in marine engineering projects. Type Ⅱ GFRP bars have better durability, and they is suggested to be used for actual marine engineering projects.

关 键 词：GFRP筋 海洋环境 耐久性 抗拉强度 

分 类 号：TU599[建筑科学—建筑技术科学]