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我国公路建设在近十几年取得了令人瞩目的成就,在沥青路面修筑,特别是高速公路的沥青路面修筑方面已形成一整套技术,基层与面层的工艺水平均有明显提高,大部分路面的总体质量和使用性能良好。但也普遍存在沥青路面耐久性差,使用寿命短和路面早期损坏的问题。道路路面早期损坏原因,除了设计,施工方面的因素外,材料性能差也是重要的原因,提高沥青混合料的路面性能成为关键。采用改性沥青和SMA沥青面层技术以提高沥青路面使用性能
China’s highway construction has made remarkable achievements in recent decades. As a result, a set of technologies have been formed in asphalt pavement construction, especially asphalt pavement construction of expressways. The technological level of grassroots and surface layers has been significantly improved. Most of them have The overall quality of the pavement and the use of good performance. However, there is also a widespread problem of poor durability of asphalt pavement, short service life and early damage to the pavement. In addition to the factors of design and construction, the poor material performance is also an important reason for the early damage of road pavement. It is the key to improve the pavement performance of asphalt mixture. Modified asphalt and SMA asphalt surface technology to improve the performance of asphalt pavement