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国内外技术状况就地热再生技术是20世纪70年代兴起的新技术、新工艺,经过20多年不断探索和发展已经成为沥青路面大、中修时首选的施工方法。2001年我国引进了第1台就地热再生设备,2002年做了试验路段标志着我国在沥青路面再生技术的一个新历程的开始。到2003年底我国共引进了国外4个国家的8套就地热再生成套设备, 2004年在京津塘高速、成渝高速、石安高速等都进行了相当面积的就地热再生施工,2004年8月中国自主开发的第1台热风循环式加热机中联LR4400加热机开始进行热再生施工,2005年京津塘高速公路采用
Domestic and foreign technical status of local thermal regeneration technology is the rise of the 20th century, 70 years of new technologies, new processes, after more than 20 years of continuous exploration and development has become a major asphalt pavement, the construction of the preferred method of construction. In 2001, China introduced the first on-site thermal regeneration equipment. In 2002, the pilot road marking the beginning of a new course of asphalt pavement regeneration technology in our country. By the end of 2003, China had introduced a total of 8 sets of in-situ thermal regeneration complete sets of equipment in 4 foreign countries. In 2004, a considerable area of in-situ thermal regeneration was carried out in Beijing-Tianjin-Tanggu Expressway, Chengdu-Chongqing Expressway and Shi’an Expressway. In 2004, China’s first independent development of the hot air circulation heater in the United LR4400 heating machine began thermal regeneration construction, in 2005 Beijing-Tianjin-Tanggu Expressway