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针对水泥稳定碎石抗裂性不足这一缺点与废旧沥青混合料再生利用的迫切需要,提出了一种改善水泥稳定碎石抗裂性和有效利用废旧沥青混合料的新方法:即在水泥稳定碎石中掺入经过加工筛分废旧沥青混合料得到的细颗粒。在分析不同废旧沥青混合料细颗粒掺量的水泥稳定碎石强度的基础上,对温缩和干缩试验结果对比分析得到,与相同情况水泥稳定碎石相比,掺入废旧沥青混合料细颗粒的水泥稳定碎石具有更高的强度和抗裂性能。
Aimed at the shortcoming of the lack of crack resistance of cement-stabilized macadam and the urgent need of regeneration of used asphalt mixture, a new method to improve the crack resistance of cement-stabilized macadam and to effectively use the waste asphalt mixture is put forward: Gravel mixed with the processing of sieved waste asphalt mixture obtained fine particles. On the basis of analyzing the strength of cement stabilized macadam with different content of fine aggregate of waste asphalt mixture, the results of temperature shrinkage and shrinkage shrinkage were compared and analyzed. Compared with the same situation of cement stabilized macadam, Particle cement stabilized macadam has higher strength and crack resistance.