冷再生沥青混合料性能与应用技术研究

发布时间：2019-03-15 21:05

【摘要】：目前,我国早期修建的公路已经逐步进入养护阶段,每年将产生大量的旧沥青路面材料,将这些旧沥青路面材料进行有效的回收利用,对公路交通的可持续发展和环境保护将具有十分重要的意义。旧路材料的充分利用,避免了废料处理对环境造成的污染,减少了开采新石料对环境造成的破坏。再生技术在河南省公路建设中的应用刚刚兴起,质量控制标准、生产工艺、设计方法、实现技术有待完善,冷再生路面工程质量难以保证。因此,论文对冷再生沥青混合料性能和应用技术进行研究,主要结论如下:(1)分析了旧沥青混合料性能评价方法和再生沥青混合料强度形成机理,为冷再生混合料配合比设计和工程应用提供依据。(2)通过对沥青冷再生混合料原材料进行性能试验,得出了各项材料的技术指标,在此基础上进行了乳化沥青冷再生混合料配合比设计,确定了乳化沥青最佳用量和外加水量。(3)采用路用性能试验对冷再生混合料高温性能、低温性能、水稳定性、疲劳性能、初期抗松散性能进行了研究,将多种再生混合料类型进行了对比分析,得出了冷再生混合料路用性能。(4)分析了冷再生混合料施工工艺及质量控制流程,以依托工程为基础,提出了冷再生混合料施工工艺和质量控制方法。(5)系统研究了乳化沥青冷再生施工工艺,检测了冷再生路面各项性能指标,评价了其经济效益及社会效益。
[Abstract]:At present, the highway built in the early stage of our country has gradually entered the maintenance stage, and a large number of old asphalt pavement materials will be produced each year, and these old asphalt pavement materials will be effectively recycled and utilized. It will be of great significance to the sustainable development and environmental protection of highway traffic. The full use of old road materials avoids the environmental pollution caused by waste treatment and reduces the environmental damage caused by mining new stone materials. The application of regeneration technology in highway construction in Henan Province has just emerged. The quality control standard, production technology, design method, realization technology need to be perfected, and the quality of cold recycled pavement engineering is difficult to guarantee. Therefore, the performance and application technology of cold recycled asphalt mixture are studied in this paper. The main conclusions are as follows: (1) the evaluation method of the performance of old asphalt mixture and the strength forming mechanism of recycled asphalt mixture are analyzed. This paper provides the basis for the mixture design and engineering application of cold recycled mixture. (2) through the performance test of the raw material of cold recycled asphalt mixture, the technical indexes of each material are obtained. On this basis, the mixture ratio design of emulsified asphalt cold recycled mixture was carried out, and the optimum amount of emulsified asphalt and added water were determined. (3) the high temperature performance, low temperature performance and water stability of cold recycled mixture were tested by road performance test. The fatigue property and initial anti-loose property were studied, and a variety of recycled mixture types were compared and analyzed, and the road performance of cold recycled mixture was obtained. (4) the construction technology and quality control flow of cold recycled mixture were analyzed. On the basis of engineering, the construction technology and quality control method of cold recycled mixture are put forward. (5) the cold recycling construction technology of emulsified asphalt is studied systematically, and the performance indexes of cold recycled pavement are tested. The economic and social benefits were evaluated.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U414

【相似文献】