平潭滨海区域地下水主要离子腐蚀性分析

Analysis of the Corrosion of the Major Ions of Groundwater in the Coastal Area in Pingtan

平潭综合实验区滨海区域多为盐田,受海水补给入侵作用影响,地下水含盐量高,地下水对建筑材料腐蚀性较复杂。随着目前滨海城市工程日益增多,地下水对混凝土和钢筋腐蚀性问题突出。基此,试验研究通过对平潭滨海区域周边海水、浅层潜水及承压水的各主要腐蚀离子含量及腐蚀性进行对比,结果表明滨海区域海水与浅层潜水对建筑材料腐蚀性高度强于承压水,各离子含量在垂向上呈现为向下递减的特征。

Most of the coastal areas in the Pingtan Comprehensive Experimental Area is salt fields. The high salt content and the complex corrosivity of groundwater to building materials was influenced by the recharge of seawater. With the increasing number of coastal city,The corrosion problem of underground water to concrete and steel bar is outstanding. Through the comparison of the main corrosion ions and corrosiveness of seawater in surrounding sea water,scuba diving and confined water in the coastal area of Pingtan. The results show that the corrosivity of groundwater to building materials in sea water and scuba diving was higher than confined water,and the feature of each ion content in vertical direction is decreased with the soil depth.