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上个世纪70年代石油危机后,国外开始逐步加大了对再生添加剂的研制力度,并取得一定的成效。国外特别是美国已有多种再生添加剂应用于路面再生,已经形成一套比较完整的再生利用技术,并且在再生剂性能和使用上都有相应规范。我国在上个世纪80年代初,曾有单位研制过用于热再生的路用再生剂,当时所研制的再生剂主要是针对等级较低的渣油路面。近年来,国内有些科研院所和企业又开始研制适用于高等级沥青路面的再生剂,但大多数
After the oil crisis in the 1970s, foreign countries began to gradually increase the research and development of renewable additives, and achieved some results. Abroad, especially the United States has a variety of renewable additives used in road surface regeneration, has formed a relatively complete recycling technology, and in the performance of regenerant and use of the corresponding specifications. China in the early 1980s, there have been units for the development of road regeneration agent for thermal regeneration, was developed by the regenerator is mainly for the lower grade residue road. In recent years, some domestic research institutes and enterprises have begun to develop regenerators suitable for high-grade asphalt pavement, but most