厦门同安湾大桥建设防腐措施研究与实践

Study and practice of anti-corrosion measures used in the construction of Tong'anwan Bridge in Xiamen

通过厦门同安湾跨海大桥建设中,海洋环境对钢筋混凝土腐蚀机理分析,桥梁建设防腐措施的选择,高性能混凝土配制研究,阐述了厦门同安湾大桥以控制混凝土抗氯离子渗透性及扩散为主的"主动防腐"和以替代性腐蚀的附加防腐为主的"被动防腐"的防腐措施研究和施工实践,对同类桥梁建设防腐具有一定指导意义。

This thesis analyzes corrosion mechanism of ocean environment on steel reinforced concrete, selects anti-corrosion measure of bridge construction, and studies the fabrication of high performance concrete in the construction of Tong＇ anwan Bridge in Xiamen, and then illustrates anti-corrosion measure approach and construction practice of ＂active anti-corrosion＂ by controlling permeability and expansion of anti-chlorine in concrete and ＂passive anti-corrosion＂ of reprehensive auxiliary anti-corrosion used in Tong＇ anwan Bridge in Xiamen, which has certain guiding meaning for similar bridge construction in the aspect of corrosion.