文章以衡水地区旧路改建为例,介绍了泡沫沥青就地冷再生技术的特点及应用前景,通过试验研究和工程实践,提出了适合本地区冷再生的施工技术研究结果对今后冷再生技术的推广应用、节约能源、保护环境、方便交通有着积极的现实作用。 Taking the reconstruction of old roads in Hengshui area as an example, this paper introduces the characteristics and application prospects of the in-situ cold recycling technology of foam asphalt. According to the experimental research and engineering practice, the research results of the construction technology suitable for the cold regeneration in this region are put forward. Promote the use of energy conservation, environmental protection, to facilitate traffic has a positive and realistic role.