摘要
以成都某地埋式污水处理厂为依托,分析3种表面成膜型防腐涂料(混凝土防水防腐涂料A,B和环氧树脂)、1种硅烷及硅氧烷类渗透型防腐涂料(混凝土防腐渗透型保护剂)和2种孔隙封闭型防腐涂料(混凝土渗透结晶保护涂料、透水模板布)对混凝土耐久性的提升效果。研究结果表明,混凝土防腐渗透型保护剂+混凝土防水防腐涂料A,B和混凝土防腐渗透型保护剂抗氯离子渗透性提升率>50%,混凝土渗透结晶保护涂料、透水模板布、环氧树脂抗氯离子渗透性提升率<30%,需根据工程实际合理选用满足需求的防腐涂料;复合涂层抗氯离子渗透性优于单一涂层;硅烷及硅氧烷类渗透型、表面成膜型、孔隙封闭型防腐涂料抗氯离子渗透性依次降低;表面涂层破损会降低抗氯离子渗透性,施工过程中防腐涂料涂刷均匀,并采取相应的防护措施。
Based on a buried sewage treatment plant in Chengdu,this paper analyzes the improvement effect of three kinds of surface film⁃forming anticorrosive coatings(concrete waterproof anticorrosive coatings A,B and epoxy resin),one kind of silane and siloxane permeable anticorrosive coating(concrete anticorrosive permeable protective agent)and two kinds of pore⁃closed anticorrosive coatings(concrete permeable crystalline protective coating and permeable template fabrics)on the durability of concrete.The results show that the anti⁃chloride ion permeability of concrete anticorrosive permeable protective agent+concrete waterproof anticorrosive coatings A,B and concrete anticorrosive permeable protective agent is increased by more than 50%.The increase rate of the anti⁃chloride ion permeability of concrete permeable crystalline protective coating,permeable template fabrics and epoxy resin is less than 30%.It is necessary to reasonably select anticorrosive coatings that meet the needs according to the actual project.The resistance to chloride ion permeability of composite coating is better than that of single coating.The resistance to chloride ion permeability of silane and siloxane permeable,surface film⁃forming and pore⁃closed anticorrosive coatings decreased in turn.The damage of the surface coating will reduce the resistance to chloride ion permeability.During the construction process,the anticorrosive coating is evenly brushed and corresponding protective measures are taken.
作者
张均
毛江鸿
丁云飞
李林桑
罗彬
鲁银祥
ZHANG Jun;MAO Jianghong;DING Yunfei;LI Linsang;LUO Bin;LU Yinxiang(College of Architecture and Environment,Sichuan University,Chengdu,Sichuan 610065,China;China Construction Seventh Engineering Division Co.,Ltd.,Zhengzhou,Henan 450000,China;Chongqing Jinhong New Material Technology Engineering Co.,Ltd.,Chongqing 401100,China)
出处
《施工技术(中英文)》
2025年第3期130-136,共7页
Construction Technology
基金
国家自然科学基金(52378172)。
关键词
混凝土
涂料
氯离子
渗透
防腐
耐久性
concrete
coating
chloride ion
penetration
anticorrosion
durability
