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随着国民经济的高速发展而带来的交通量迅速增长、车辆大型化、超载严重及交通渠化等,使沥青路面面临着严峻的考验,对道路沥青的质量及其路用性能提出更加严格的要求。由于目前国内外通行的的沥青标准与实际使用性能已显露出许多矛盾,有些指标并不反映沥青的使用品质,而沥青使用中的主要性能要求又缺乏相关的性能指标来描述,因此沥青及沥青混合料质量的指标以及沥青、沥青混合料和沥青路用性能之间关系的研究成为了当前世界各国研究的重点课题。启动于1987年的美国战略公路研究计划即夏普(SHRP)计划,经过约五年
With the rapid development of the national economy, the rapid traffic growth, large-scale vehicles, serious overloading and traffic diversion make the asphalt pavement face a severe challenge and put more strict demands on the quality of road asphalt and its road performance Request. As there are many contradictions in asphalt standard and actual service performance prevailing both at home and abroad, some indicators do not reflect the service quality of asphalt, and the main performance requirements of asphalt and the lack of related performance indexes to describe asphalt and asphalt The research on the index of mixture quality and the relationship between asphalt, asphalt mixture and asphalt road performance has become a key issue in the research of all countries in the world. Starting in 1987, the United States strategic road research program that is Sharp (SHRP) program, after about five years