一、前言在路面工程中最令人关心的因素是材料的平衡,环境的保护和经济考虑。一条沥青路面的使用寿命取决于许多因素,其中主要的有交通数量和载重、气候、材料品质、路基强度、排水和施工质量。及时的养护能够延长路面的使用,然而路面仍要发生开裂,以致需要重建。而且旧有的路面材料也不能浪费掉。从旧有路面结构中回收得到的材料,掺入一些新材料进行再加工,生产出符合规范要求的混合料。这种用沥青进行路面再生是一种符合上述 I. Preface The paramount concern in pavement engineering is material balance, environmental protection and economic considerations. The useful life of an asphalt pavement depends on many factors, primarily traffic volume and load, climate, material quality, subgrade strength, drainage and construction quality. Timely maintenance can prolong the use of the pavement, however, the pavement still has to be cracked and needs to be rebuilt. And the old pavement materials can not be wasted. Materials recovered from the old pavement structure are blended with some new materials for reprocessing to produce compounded material that meets specifications. This kind of asphalt pavement regeneration is a kind of accord with the above