谈如何提高城市沥青路面的动稳定度-《现代农业研究》

文章信息/Info

Keywords:: synthetic gradation; mixing temperature; Marshall stability; high temperature performance; dynamic stability

摘要:: 文章主要从沥青的原材料选择、合成级的配置范围，集料的原材料选择以及混合配置材料的耐高温性能等几个方面来谈论如何提高城市沥青路面的动稳定度，文章通过一系列的试验数据的收集和分析，最终可以提议找到一个可以提高沥青路面的动稳定度和耐高温性能的最佳沥青材料混合的方案，从而可以满足城市多样化路面的要求。

Abstract:: With the rapid development of cities in our country in recent years, the traffic network of cit? ies has been built up slowly, and many kinds of road surfaces have appeared.In order to meet the needs of urban road development, the selection of asphalt raw material, aggregate raw material and synthetic gradation range of asphalt raw material, aggregate raw material and synthetic gradation range are ana? lyzed from the test of actual mix proportion of asphalt mixture. A series of requirements of aggregate heating temperature, asphalt heating temperature, mixing temperature and mixing time, and final dis? charge temperature of asphalt mixture are put forward. Finally, based on the actual dynamic stability test results of asphalt mixture, the matching scheme is put forward to meet the requirements of the final asphalt pavement performance at high temperature. This paper focuses on the selection of asphalt raw materials, the selection of aggregates, the selection of synthetic gradation range, and the selection of density. The best scheme to improve the high temperature index such as Markov stability and dynamic stability at 60 ℃ of dense asphalt mixture is found to meet the pavement requirements of high grade and heavy load traffic such as Taiyuan Expressway, Loop Road and so on.