Corrosion and preventive measures to RC pipes in the highway of saline soil area in Beijiang

The corrosion problem of RC pipes is a commonplace in the salted soil zone, it often results in the roads´ surface collapse and the houses´ subsidence on the its´ function, thus has the effects on building´s durability and security. Through analyzing the content about soluble salt, it shows that chlorous (dle) and moderate sulfuric (sulfurous) saline soil are primary in the region. The conclusions are drawn about corrosion and destruction mechanism and major preventive measures, and certain appraisal is carried on the corresponding measures. It is pointed out that the understand to chlorine salt harm is insufficient, and that it must be done the further deep research from the theoretical aspects against sulfate corrosion.