After nearly one year of preparation, the on-site cold regeneration project of the Beijing and Shanghai Office was officially implemented on October 13, 2006. This project is provided with technical support from Singapore Tongjun International Company, and is constructed by Langfang Traffic & Highway Engineering Co., Ltd. By October 24, 2.15 kilometers of on-site cold regeneration road tests had been completed.

During the intermediate repair of the Beijing-Shanghai Expressway pavement, due to the use of on-site Road cold recycler technology, the difficulty was reduced and the cost was saved. First, during the site cold-recycling construction process, the old road pavement structural materials are used to the maximum, which reduces the transportation and storage of waste materials, and directly saves natural resources such as sand and gravel, which effectively saves a large amount of sand and gravel mining and waste old materials. Land resources; reuse of asphalt concrete waste on old roads, reducing pollution to the surrounding environment; second, the technical characteristics of on-site mixing without transportation greatly shortens the construction period; third, cold-recycling bases on the site belong to semi-flexible bases, which have Good high temperature stability, fatigue resistance, water stability and low temperature stability.

的 The completion of the construction of the cold regeneration test section of the Beijing-Shanghai Expressway made the road easy to maintain and maintain a stable state for a long time after the maintenance, which provided a new development direction for the maintenance of the Beijing-Shanghai highway pavement in the future.