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用振动法进行了水泥稳定碎石混合料级配的优化,并对优化结果进行了对比分析。试验结果表明:用振动法优化的骨架密实结构水泥稳定碎石基层的抗裂能力明显高于悬浮结构。根据室内试验确定了实体工程采用的材料配比,并用于工程实践。现场检测结果表明:经振动压实的骨架密实结构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基本一致,基层抗裂性得到明显提高。
Vibration method was used to optimize the gradation of cement-stabilized macadam mixture, and the optimization results were compared and analyzed. The test results show that the crack resistance of the cement-stabilized macadam base with the compact structure optimized by vibration method is obviously higher than that of the suspended structure. According to the indoor test, the proportion of materials used in the physical engineering is determined and used in engineering practice. The field test results show that the strength and crack resistance of the cement-stabilized macadam mixture with vibration-compacted skeleton solid structure are almost the same as those of the vibration-molding compound, and the cracking resistance of the base layer is obviously improved.