论文部分内容阅读
为了避免在沥青路面就地热再生中由于级配设计不良导致的沥青混合料出现离析、松散、粘接性能不佳和路用性能等问题。通过对原路面材料进行调查,掌握原材料级配及老化程度,根据调查结果对沥青路面就地热再生材料进行级配优化设计,控制再生剂用量、级配和最佳油石比,得到室内配合比。在此基础上对再生沥青混合料进行水稳定性和高温稳定性能检测。试验结果表明通过对原有沥青路面情况调查和就地热再生沥青混合料配合比优化设计,可以得到路用性能优良的再生沥青混凝土路面。
In order to avoid the problems of segregation, looseness, poor bonding performance and road performance of asphalt mixture caused by poor gradation design in on-the-spot thermal regeneration of asphalt pavement. Through the investigation of the original pavement materials, we grasped the gradation of raw materials and the degree of aging. Based on the survey results, the gradation of in-situ thermal regeneration materials in asphalt pavement was optimally designed, and the amount of recycled regenerant, grading and the best ratio of oil to gas were controlled. On this basis, the recycled asphalt mixture was tested for water stability and high temperature stability. The test results show that the recycled asphalt concrete pavement with excellent road performance can be obtained by investigating the original asphalt pavement condition and optimizing the mix proportion of hot asphalt mixture in situ.