CECS 220-2007 in English

本标准适用于既有房屋、桥梁及一般构筑物的混凝土结构耐久性评定，不适用于轻骨料混凝土及特种混凝土结构，采取附加防腐措施的混凝土结构可参考本标准评定。
本标准适用一混凝土中性化（碳化）及氯盐侵蚀引起的钢筋锈蚀、冻融损伤等混凝土结构耐久性评定。
本标准不涉及由设计、施工、荷载变化等非耐久性损伤引起的结构安全性、适用性鉴定。
本标准不适用于液相化学腐蚀、疲劳荷载、火灾等混凝土结构耐久性评定。

Scope

This standard is applicable to the durability assessment of concrete structures of existing houses, bridges and general structures. It is not applicable to lightweight aggregate concrete and special concrete structures. Concrete structures with additional anti-corrosion measures can refer to this standard for assessment.