碱性环境下建筑结构防腐与加固技术研究

通过工程实例对碱性环境下建筑结构材料的腐蚀作用和加固方法进行了探讨,针对强碱环境和构件材料的具体条件,采取了耐碱腐蚀的防腐材料和防腐工艺做法,并针对强碱环境下不同构件因腐蚀造成的强度损失的具体条件以及荷载的作用情况采取了多种补强及加固方法,(如:钢筋混凝土采大型屋面板用高强环氧防腐砂浆抹面的防腐方法;钢平台、钢支撑采用刷70-H环氧铁红防腐涂料、H06-3环氧云铁防锈漆的防腐方法;钢筋混凝土屋架、平台梁采用采用碳纤维布粘贴,外刷RP-W防腐砂浆的防腐方法;赤泥车间还采用了卸除部分荷载和粘贴碳纤维相结合的方法等),经长期实践应用证明取得了较好的防腐和加固效果.

Antiseptic and Reinforcement Techniques of Constructive Structures in Alkaline Environment

The paper first discusses the situation of being corroded of building materials and the reinforcement methods as well.According to different alkaline environment and building materials,materials antiseptic against alkali and antiseptic techniques can be applied.And according to their strength lose of different materials in alkaline environment,various ways of increasing their strength can be made use of,as well as some reinforcement approaches.It has been proved in practice that applying such techniques can lead to better antiseptic and reinforcement effects.