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为提高半刚性基层的抗疲劳破坏能力和抗裂能力,根据抗裂能力最佳、强度满足要求的原则,采用振动法进行了水泥稳定碎石混合料级配及配比的优化,并对优化结果进行了对比分析。试验结果表明,现场经振动压实的水泥稳定碎石混合料强度、抗裂特性与室内振动成型的混合料特性更趋一致,用振动法优化的级配配比可显著提高半刚性基层的抗裂能力。
In order to improve the anti-fatigue capacity and anti-cracking ability of semi-rigid base, according to the principle of the best anti-cracking ability and strength to meet the requirements, the grading of cement stabilized aggregate is optimized by vibration method, The results of a comparative analysis. The test results show that the strength and crack resistance of the cement stabilized macadam compacted by vibration are more consistent with the characteristics of the mixture of the vibration molding in the laboratory. Vibration optimization can improve the resistance of the semi-rigid base Cracking ability.