干线公路全深式冷再生混合料配合比设计

Mix Proportion Design for Full-depth Reclamation of Trunk Highway

对干线公路路网改造中常用的全深式冷再生方式进行了阐述,对旧沥青路面材料的性能进行了分析,通过试验手段取得了再生混合料的配合比设计。试验证明,添加20%新骨料和5%水泥后再生料的各项指标完全能够满足规范中路用基层的要求。

Full-depth reclamation, which is always used in reconstruction of trunk highway network, is expounded. The performance of old materials in asphalt pavement is analyzed, and the proportion of recycling mixtures is obtained by experiment. The result shows that the indicators of recycling mixture added by 20% new aggregate and 5% cement can meet the specification requirement of road base.