就地热再生技术在沥青道路养护中的研究

Research on the application of hot in-place recycling technology in the maintenance of asphalt pavement

对再生沥青掺配试验和掺加不同用量再生剂后再生料的马歇尔体积指标试验进行了研究,通过对比试验分析,最终可以得出用来恢复老化沥青性能的最佳再生剂添加比例。采用此项技术工艺施工后的路面平整,能够有效消除裂缝、坑槽、麻面等路面表层病害,恢复路面结构承载力,提高道路使用性能,延长使用寿命。由于就地热再生技术对环境温度和再生机械要求标准较高,需要深入详细的研究以获取最大的经济和社会效益。

Through recycled asphalt blending test and Marshall volume index test of raw material after adding different amount of recycled agent,by comparing the experimental,finally,the best ratio of regenerant to restore the performance of aging asphalt can be obtained.After the construction of this technology,the road surface can be leveled,which can effectively eliminate the surface diseases such as cracks,pits and pitting surface,recover the bearing capacity of the road structure,improve the road performance and extend the service life.Due to hot in-place recycling technology for the high requirements of environmental temperature and regeneration machinery,in-depth and detailed research is needed to obtain the maximum economic and social benefits.