咸旬高速公路低温季节添加温拌剂的沥青混合料试验研究

   1,孙科营2

1.西安公路研究院,陕西 西安  7100652. 陕西省交通建设集团公司,陕西 西安  710075

  要:为解决沥青混合料冬季施工的难题,从温拌沥青混合料的材料组成及配合比设计出发,通过室内试验对比研究了热拌和温拌沥青混合料的各项路用性能,并采用“温拌热铺”的施工工艺铺筑了温拌试验路。研究结果表明:温拌沥青混合料在低温季节可有效延长沥青混合料的施工时效,具有与热拌沥青混合料相当的路用性能,其综合路用性能较好。

关键词:道路工程;温拌沥青混合料;路用性能;试验路;压实度

中图分类号U414               文献标识码A

Study on the Warm Mix Asphalt of XIAN Yang to XUN Yi

Expressway in Low Temperature Season

QI Feng1SUN Ke-ying2

1. Xi‘an Highway Research InstituteXi‘an 710065China

2. Shaanxi Province Transportation Construction Group co.LTD.Xi‘an 710075China

AbstractIn order to solve the asphalt construction problems in winterthe road performance of warm mix asphalt was compared with thermal mixing from composition and design of warm mix asphalt material in laboratory, and test road was paved byconstruction technology of warm mix and hot shop. The results showed that the construction aging of asphalt mixture could be effectively extended by warm mix asphalt in the cold season, and its pavement performance was similar to hot mix asphalt. The comprehensive road performance of warm mix asphalt was better.

Key wordsroad engineeringwarm mix asphaltroad performancetest roadthe degree of compaction