冷铺沥青材料的特性与配制技术

用冷铺沥青混合料修补路面坑洞，具有方便、快捷等优点。为保证其疏松性和压实性，在配制方法上，如所用沥青的黏度、沥青的用量、添加剂以及集料级配等，与热拌沥青混合料有很大区别。实践表明，所研制开发的冷铺材料使用性能良好，而成本却比同类进口材料大大降低。

Features and Preparing Techniques of the Cola-laid Asphalt Materials

Repairing the pits and holes on the road surface with the cold-laid asphalt mixture is a convenient and rapid method. In order to guarantee the porosity and compactness of the road surface, the preparing method of the cold-laid asphalt is much different from the hot-laid asphalt mixture in aspects of the viscosity and consumption of the asphalt, additives, and graded aggregate mixtures, etc. And the practice shows that the developed cold-laid mixture has good performances and its cost is reduced greatly compared with the same kind of imported materials.