一般大气环境下混凝土中钢筋锈蚀与混凝土碳化深度有密切关系。实际工程调查结果表明 ,不同环境下钢筋开始锈蚀与碳化深度之间的关系有很大差异 ,将一般大气环境分为室内环境、室外淋雨、室外不淋雨、环境相对湿度 5 0 %～ 70 %、70 %～ 90 %、90 %以上 6类 ,对各种环境下混凝土中钢筋开始锈蚀与混凝土碳化深度之间的相对关系进行了试验研究 ,给出了不同大气环境钢筋开始锈蚀时碳化深度的具体结果。 Under normal atmospheric environment, the corrosion of steel bars in concrete is closely related to the depth of concrete carbonization. The actual engineering survey results show that there are great differences between the corrosion resistance and carbonization depth under different environments. The general atmospheric environment is divided into indoor environment, outdoor rain, outdoor rain, relative humidity of 50% ~ 70 %, 70% -90% and 90%, respectively. The relative relationship between the initial corrosion of concrete in various environments and the carbonation depth of concrete was studied. The results show that the carbonation depth The specific result.