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针对高寒地区公路用水泥稳定沙砾基层材料,进行不同水泥剂量、级配和成型方式条件下的水泥稳定砂砾抗冻性试验,研究其抗冻性能的变化规律,并运用灰熵法分析各影响因素的显著性。结果表明:3个因素均对水泥稳定砂砾的抗冻性能产生一定影响,且以成型方式的影响最为显著,在高寒地区水泥稳定砂砾基层材料施工时,宜选用振动压实,并严格控制现场施工质量。
According to the cement-stabilized gravel base material for highway in alpine region, the frost resistance of cement-stabilized grit under different cement dosage, grading and forming methods was studied, and the change law of frost resistance was studied. Gray-entropy method was used to analyze the influencing factors The significance of The results show that all the three factors have an effect on frost resistance of cement stabilized gravel, and the influence of forming method is most significant. Vibratory compaction should be used in the construction of cement stabilized gravel base material in alpine region and the site construction should be strictly controlled quality.