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目前沥青在道路建设中已被作为重要的建筑材料。被广泛地用于道路建设,在大吨位车辆迅速发展的今天,沥青材料的一些特性制约了公路交通的发展,普通沥青材料由于自身性能的缺陷,早期破坏现象也非常典型,例如:炎热季节沥青路面在重车作用下形成的车辙、推拥的永久性变形,冬季低温开裂和半刚性基层开裂的反射性裂缝,在雨季及春融季节形成的坑槽、松散等水损害破坏,路面抗滑性能的迅速下降以及局部龟裂等病害在高等级公路上时有发生。为此,我们公路在不断地探索改性沥青的物理性能和化学性能,以使道路性能得到改善。
Asphalt is currently used as an important building material in road construction. Is widely used in road construction. With the rapid development of large-tonnage vehicles, some characteristics of asphalt materials restrict the development of road traffic. Ordinary bituminous materials are typical of early destruction due to their own performance defects such as hot season asphalt The rutting of the road under the heavy truck, the permanent deformation of the push-in, the reflective cracking of low-temperature cracking in winter and the cracking of semi-rigid base, the damage of water damage such as the pits and loose formation in the rainy season and spring melt season, The rapid decline in performance and local cracking and other diseases occur on high-grade highways. To this end, our roads are continually exploring the physical and chemical properties of modified asphalt to improve road performance.