INFLUENCE ON PERMEABILITY OF STRAIN HARDENING CEMENTITIOUS COMPOSITES BY WATER REPELLENT TREATMENT
Lower tensile strength and worse toughness of cementitious composites is thedominant reason of incidental crack and deterioration of durability for reinforced concrete(RC) structures. The experimental results indicate that high elastic modules Polyvinyl Alcohol(PVA) Fiber can enhance the ductility of the cementitious composites and present to be strainhardening and multiple cracks. Saline superficial water repellent treatment can improve theperformance of waterproof and anticorrosion of new concrete structures. Because ofprevention or delay deterioration,the durability and service time of concrete structures will beameliorated. In this paper,capillary suction test was carried out to investigate the influence onpermeability of strain hardening cementitious composites (SHCC) by water repellenttreatment. The results show that saline water repellent agent can improve the anti-permeability of SHCC markedly. Consequently,SHCC can be permanent formwork or highdurable repair material for the old construction.
strain hardening cementitious composites (SHCC) water repellent treatment the coefficient of capillary suction saline water repellent agent
Tian Li Ding Zhu Zhao Tiejun
Qingdao Technological University,Qingdao,PR China;Xian University of Architecture & Technology,Xia Shenzhen Key Lab on Durability of Civil Engineering,Shenzhen Universirty,PR China Qingdao Technological University,Qingdao,PR China
国际会议
The International Conference on Durability of Concrete Structures(2008年混凝土结构耐久性国际学术会议)
杭州
英文
1193-1197
2008-11-01（万方平台首次上网日期，不代表论文的发表时间）