三灰碎石基层最佳配合比设计室内试验研究

Study of optimum mix design with lime-cement-flyash macadambase course

通过集料最大粒径选择、细料范围控制,确定了集料级配;利用力学强度试验,得到了二灰的最佳比例;通过理论计算与分析,得到结合料与集料的最佳比例;利用抗压强度、抗弯拉强度和回弹模量试验,综合各方面路用性能,确定出三灰稳定碎石最佳配比。

This article discusses how to select the maximum sizes of aggregates, control range of fine aggregates, determine the gTadation of aggregates, to obtain the optimal proportion of lime - flyash on the results of compressive strength test, and the optimal proportion of binder and aggregates from bending and tensile strength tests, modulus of resilience, and finally points out the optimum proportion for lime - cement - flyash stabilized macadam after having synthesized the respects of road performance.