低剂量水泥改性级配碎石施工质量影响因素的研究

Study of Influence Factors on Construction Quality of Low-dose Cement Modified Graded Gravel

低剂量水泥改性级配碎石是一种介于级配碎石与传统水泥稳定碎石之间的材料。对低剂量水泥改性级配碎石的性能影响的因素是多方面的,通过采用正交试验法和方差分析法研究水泥剂量、级配、压实度和含水率四个因素对低剂量水泥改性级配碎石的无侧限抗压强度和CBR的影响,得出水泥剂量和压实度是影响低剂量水泥改性级配碎石质量的主要因素,为其施工质量控制提供了依据。

The low-dose cement modified graded gravel is a material between the graded gravel and traditional cement stabilized macadam. There are many factors to influence the performance of low-dose cement modified graded gravel. The orthogonal experimental method and the variance analysis method are used to study the influence of four factors of cement dosage, gradation, compactness and water content on the unconfined compressive strength and CBR of low-dose cement modified graded gravel. It is concluded that the cement dosage and degree of compaction are the main factors to influence the quality of low-dose cement modified graded gravel, which provides a basis for the quality control of this construction.