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针对高原地区机场道面混凝土的工作特点,分析了道面混凝土除冰盐破坏的机理,借鉴国内外相关试验方法,确定了道面混凝土抗表面剥落试验方法和评价指标,采用盐冻法对5种类型的道面混凝土进行了抗表面剥落性能试验研究,试验结果表明: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提升道面表面使用品质和抗剥落性能,能够确保飞行安全,有效延长道面使用寿命,应大力推广使用。
According to the working characteristics of pavement concrete in pavement in plateau area, the mechanism of deicing salt destruction of pavement concrete is analyzed. Based on the relevant test methods at home and abroad, the test methods and evaluation indexes of surface pavement cracking resistance of pavement concrete are determined. Salt- The test results show that adding high-quality fly ash, synthetic fiber and air-entraining water-reducing admixture into common pavement concrete can greatly enhance the quality and resistance of pavement surface Peeling performance, to ensure flight safety, effectively extend the service life of the pavement should be vigorously promote the use.