低剂量水泥稳定粒料基本性能

我国长久以来使用的半刚性基层发展到今天已广泛采用水泥稳定粒料基层，低剂量水泥稳定粒料基层与此类似但减少了水泥用量，从经济上和防止反射裂缝两个方面改善了水泥稳定粒料基层的性能。首先从级配角度出发，分析了级配对水泥稳定粒料强度的影响，规定了各级级配的控制点。然后从水泥稳定粒料基层强度与水泥用量的关系出发，按相同的集料级配，针对不同的水泥用量绘制了其最大干密度和含水量的关系曲线。最后按抗压强度和CBR值对比了不同水泥剂量间及与级配碎石的强度变化情况，验证了低剂量水泥稳定碎石基层应用的可能性。

Basic performance of low dosage cement stabilized aggregates

Semi-rigidity base materials have been widely used in China for a long period;and now cement stabilized aggregates is the main one.Low dosage cement stabilized aggregates road base is similar with it but the cement dosage is less,so the performance of economy and preventing cracking become better.Firstly,how the percentage of various dimension granule influent the intensity of this material is analyzed secondly,the curve about the relation of intensity and dosage of cement is made,which is based on the same percentage of various aggregates;at last,through comparing the CBR and intensity of various dosage cement stabilized aggregates,the probability of using low dosage cement stabilized aggregates is confirmed.