Technical Development of Longevity by External Insulation Method of Existing Reinforced Concrete Building

外保温建筑的使用寿命与混凝土的中和速度有关，与外保温方法的透气性有关。本研究一般测定外保温法的AIR渗透率，并通过混凝土中和加速试验来检验外保温法中中和的抑制效果。此外，还阐述了外保温方法的透气性与中和抑制效果的关系。

The life span of external insulation building which is related to the speed of concrete's neutralization has connection with the air permeability of external insulation method. This study generally measures the ajr permeability of external insulation method, and examines the restraint effect of neutralization in external insulation method from the accelerating test of concrete neutralization. In addition, it described the relations between the air permeability of external insulation method and the restraint effect of neutralization.