混凝土碳化试验研究

研究了混凝土碳化深度与混凝土水灰比、水泥用量、抗压强度、含水率和环境温湿度的关系，并对其原因进行了分析。得出结论如下：混凝土碳化深度随着水灰比的减小而降低；随着水泥用量的增加而减少，但变化不大；随着混凝土含水率的增大而减小；随着混凝土强度的增大，碳化深度变化的总趋势为减小；环境温湿度气候条件对混凝土的碳化速度具有明显的影响，而且环境温度对混凝土碳化速度的影响高于环境相对湿度。

Experimental Study on Carbonization of Concrete

Experimental studies on the influences of the ratio of W to C, the dosage of cement, the pressure--bearing strength, the water content, the environmental temperature and relative humidity on the concrete carbonization depth were carried out in the paper, and the causes for concrete carbonization were also analyzed. The conclusions are drawn.. The carbonization depth would reduce if W/C decreases, and the carbonization depth would reduce if cement dosage increases, but the influence is not significant; the carbonization depth would reduce if the water content becomes bigger. The depth of carbonization decreases with the increase of concrete strength. Meanwhile, the climate condition such as environment temperature and humidity obviously influence the carbonization speed, and environment temperature influences carbonization speed greater than humidity. The study provides reference for the research on durability of concrete.