硅酸盐通报2024，Vol.43Issue(10)：3615-3622,3644,9.
防腐涂装龄期对海工现浇混凝土性能演变的影响
Effects of Anti-Corrosion Coating/Treating Ages on Performance Evolution of Marine Cast-in-Place Concrete
摘要
Abstract
This article was based on indoor simulated marine environment erosion tests using concrete,by analyzing the compressive strength,coating bonding strength and chloride ion diffusion behavior of marine cast-in-place concrete after erosion,and the effects of anti-corrosion coating/treating ages on the mechanical properties and durability evolution of marine cast-in-place concrete were studied.The results show that compared with concrete without anti-corrosion coating/treating,anti-corrosion coating/treating concrete using silane and polyurethane coating shows a decrease in compressive strength fc after erosion in marine tidal areas,and concrete fc gradually decreases with the increase of curing age tc.Anti-corrosion coating/treating can effectively improve the long-term chloride ion erosion resistance of marine cast-in-place concrete,and with the increase of curing age tc,the effects of anti-corrosion coating/treating on reducing the surface chloride ion content Cs and apparent chloride ion diffusion coefficient Da of concrete becomes more significant.Taking into account the development of mechanical properties of cast-in-place concrete in the marine tidal zone environment and the effectiveness of anti-corrosion coating/treating measures,it is recommended to use silane and polyurethane coatings for coating with a curing age of not less than 5 and 10 d,respectively.关键词
海工现浇混凝土/防腐涂装/力学性能/氯离子扩散/耐久性Key words
marine cast-in-place concrete/anti-corrosion coating/treating/mechanical property/chloride diffusion/durability分类
建筑与水利引用本文复制引用
姜金勇,朱海威,钱鑫,杨海成,范从军..防腐涂装龄期对海工现浇混凝土性能演变的影响[J].硅酸盐通报,2024,43(10):3615-3622,3644,9.基金项目
南通市科学技术局社会民生面上项目(MS12021010) （MS12021010）
交通运输行业重点科技项目(2021-MS1-002) （2021-MS1-002）
