Road Performance of Cement Stabilized Cold Recycled Mixture for Fully Deep Asphalt Pavement
In the structural maintenance design of semi rigid base asphalt pavement,cold recycling of old base materials and asphalt pavement materials is a low-carbon engineering technology.In order to explore the strength laws of different proportions of mixture between cold recycled base course old materials and asphalt pavement old materials,this article uses on-site recycled asphalt layer RAP material and base course RBM material as raw materials,and investigates the strength of asphalt mixture based on the proportion of surface layer and base course materials.Three types of surface and base mixture ratios,were selected for unconfined compressive strength tests of different types of mixtures with 5 cement ratios of 3%,5%,6%,7%,and 8%,and their compressive strength patterns were obtained.Taking into account the strength,stability,and economy of the mixture,a 33∶67 ratio of surface and base materials is preferred;When the cement content is above 5%～8%,the strength of the recycled mixture increases rapidly with the increase of cement content.It is recommended that the cement content be greater than 5%.
万方数据
维普
