摘要
针对潮差区军港码头桩基长期遭受氯盐侵蚀与泥沙冲蚀问题,研制了自修复渗透结晶型涂层与防腐型硅烷涂层。为测试复合涂层的修复能力与防腐性能,进行了自修复渗透结晶型涂层力学性能、抗渗压力测试,防腐型硅烷涂层接触角测试和抗氯离子侵蚀试验,复合涂层磨蚀吸水性试验。试验结果表明:混凝土基层经复合涂层处理后,涂层与混凝土基体形成整体,抗压强度明显提高,抗渗能力增强,且混凝土表面接触角达104. 5°,可有效防止水的侵入;混凝土表面最大氯离子含量仅为0. 1%,远远低于氯离子临界值。
Aiming at the long-term chloride erosion and silt erosion on the pile foundation in military harbor in tidal zone,the self-healing crystalline and anticorrosive silane coating have developed.The mechanical properties,the impermeability pressure of self-healing capillary crystalline coating,the contact angle,the resistance to chloride ion of anticorrosive silane coating and the water absorption of the composite coating are tested in order to test their repair ability and anticorrosion performance.The results show that the coating and concrete matrix form a whole,the compressive strength is obviously improved,furthermore its impermeability get better and the contact angle is up to 104.5°after the coating is coated on concrete matrix,then it bring waterproofing into effect.The maximum chloride ion content on the concrete surface is 0.1%,and it is much lower than the critical value of chloride ion.
作者
高晗
罗文
李英军
GAO Han;LUO Wen;LI Yingjun(Research Institute for National Defense Engineering of Academy of Military Sciences PLA China,Luoyang 471023,China;Henan Key Laboratory of Special Protective Materials,Luoyang 471023,China)
出处
《防护工程》
2018年第3期9-15,共7页
Protective Engineering
关键词
军港码头
桩基
混凝土
涂层
防腐
修复
耐久性
navy wharves
pile foundation
concrete
coating
anticorrosion
repair
durability
