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针对工业建筑中板、梁、柱、桁架构件维修和补强时遇到的实际问题 ,采用喷射聚合物砂浆新技术进行混凝土构件的表面处理 ,以期望达到延缓混凝土碳化和钢筋锈蚀速度 ,延长混凝土构件使用寿命的目的。为此 ,对聚合物砂浆的力学性能进行了试验研究 ,分析了其防碳化的机理 ,阐述了喷射聚合物砂浆在老化混凝土修补工程中的适用性 ,并总结了该项技术的优越性。工程实践表明 :喷射聚合物砂浆技术性能指标可靠 ,特别适应老化混凝土构件的修补 ,施工不妨碍生产 ,工期短 ,施工方便 ,是一种行之有效的混凝土防碳化技术 ,可供有关工程参考。
Aimed at the practical problems encountered in the repair and reinforcement of slabs, beams, columns and truss members in industrial buildings, the new technology of jetting polymer mortar was used to treat the surface of concrete members in the hope of slowing down the rate of concrete carbonization and steel corrosion, The purpose of component life. Therefore, the mechanical properties of polymer mortar were studied, the mechanism of carbonation prevention was analyzed, the applicability of spray polymer mortar in aged concrete repair engineering was expounded, and the superiority of this technology was summarized. The engineering practice shows that the technical performance index of sprayed polymer mortar is reliable, especially suitable for the repair of aged concrete components. The construction does not hinder the production, the construction period is short and the construction is convenient. It is an effective concrete anti-carbonization technology, which can be used for reference of relevant projects.