两种RAP掺量下泡沫沥青冷再生材料组成设计研究

Research on Composition Design of foam Asphalt Cold Recycling Materials with Two RAP Content

为提高旧料利用率,采用两档铣刨旧料,对两种RAP掺量下泡沫沥青冷再生材料组成设计进行研究。重点分析泡沫沥青冷再生材料在RAP掺量100%及80%条件下的级配设计,在发泡试验的基础上,确定了最佳含水量及泡沫沥青含量,以期提高泡沫沥青冷再生混合料的技术性能。

In order to improve the utilization rate of old materials,this paper studies the composition design of foam asphalt cold recycling materials with two grades of milling old materials and two RAP contents.The gradation design of foam asphalt cold recycling material under the conditions of 100%and 80%RAP content is emphatically analyzed.Based on the foaming test,the optimal water content and foam asphalt content are determined to improve the technical performance of foam asphalt cold recycling mixture.