玄武岩纤维对机场道面混凝土抗冻性能影响研究

Influence Study of Basalt Fiber on Frost Resistance of Airport Pavement Concrete

通过设计对比试验,从相对动弹模量和质量变化两个方面研究了普通混凝土、玄武岩纤维混凝土及玄武岩纤维-引气混凝土的抗冻性能,并分析了纤维增强抗冻机理。结果表明,玄武岩纤维的掺入能有效提高机场道面混凝土的抗冻性能,相对耐久性指数较引气混凝土提高18.6%。

Through the design of comparative test, the frost resistance of ordinary concrete, basalt fiber reinforced concrete （BFRC） and BFRC-air-entraining concrete is studied from two aspects of the relative elastic modulus and quality changes. The mechanism of fiber reinforcing frost resisting is analyzed. The results show that the basalt fiber can effectively improve the frost resistance of airport pavement concrete, and the relative durability index is increased by 18.6% than the ones of air-entrained concrete.