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改性沥青在我国高速公路施工的应用已经有了二十多年的历史,在这二十多年的应用实践中也取得了不少技术成果,与此同时在工程施工中,国家也颁布了诸多关于改性沥青道路工程施工规范。在我国当前的高速公路建设中,多数都是以沥青碎石基层(也就是我们常说的沥青稳定碎石层)混合材料为基本的设计思路来进行全面施工与分析,在施工中采用足够的粗骨料,使得其具备一定的高温、力学性质。现通过高速公路施工各阶段改性沥青的应用分析,提出了在施工中常见的问题与需要注意的技术要点,并提出了相关的改善建议,以供同行工作参考。
The application of modified asphalt in highway construction in our country has been more than 20 years of history, and many technical achievements have been made in the application and practice of these 20 years. At the same time, in the construction of our country, the state promulgated Many on the modified asphalt road construction specifications. In the current highway construction in our country, most of the construction and analysis are based on the basic design concept of mixed materials of asphalt and gravel base (that is, we often say asphalt stabilized gravel layer), and enough construction Coarse aggregate, making it has a certain high temperature, mechanical properties. Now through the application analysis of modified asphalt in all stages of expressway construction, the common problems in construction and the technical points needing attention are put forward, and the related improvement suggestions are put forward for the reference of the counterparts.