海水对桥梁基础的侵蚀作用及试验研究

Study on the effect of marine water erodes to bridge foundation

桥梁混凝土基础受到海水侵蚀,阐述了海水对混凝土腐蚀的机理,研究了混凝土的防腐方法并对各种方法进行了综合比较和分析,择优选择。在试验室进行混凝土的配合比设计,掺入新的添加剂,制作了几组试件,并使其处于具有侵蚀性离子存在的环境,用试验模拟了侵蚀性存在的各种情况,对不同侵蚀条件下混凝土试件进行了力学性质试验研究和渗透高度研究。对海水条件下混凝土的耐久性设计和应用具有参考价值。

Based on the bridge foundation in marine environment.The principles of concrete foundations＇ eroding in marine environment were expatiated, meanwhile, the methods of resistance on eroding were researched, and the better one is chosen from the methods compared and ana- lyzed.In laboratory, the mixture ratios were designed and several samples were completed with new additive mixed into.The laboratory tests placed the concrete under ionic erosion, mechanical properties and height of penetration are analyzed in different erosive conditions.The conclusion ob- tained can be referred to in the design and applications of concrete foundation in marine environment.