道面混凝土抗冻试验与掉皮防治

Scaling Prevention and Freezing Resistance Experiment of Pavement Concrete

针对严寒地区机场道面混凝土的工作特点，分析了道面混凝土掉皮剥落的机理，对五种类型的道面混凝土进行了抗冻性能与抗表面剥落性能试验研究，结果表明：在普通道面混凝土中掺入优质粉煤灰、合成纤维和引气减水剂可以大大减少道面掉皮的发生，确保飞行安全，延长使用寿命。

The paper aims at the work characteristic of the airfield pavement concrete in hyperborean area, the destruct mechanism of the deicing chemicals act on the pavement concrete was analysed. In order to research the scaling resistance of the pavement concrete, the five kinds of pavement concrete was studied. The results indicate that the surface use quality and the scaling resistance of the ordinary concrete mixed with fly ash, synthetic fibre, air--entraining and water--reducing agent were very well, which could insure the flight safe and extend the employ life of pavement effectively.