【摘要】 粗粒式混合料在施工过程中容易产生推移问题,导致沥青混凝土面层内部存在众多横向微小裂缝。微小裂纹严重影响到以后沥青混凝土的使用性能以及服务年限,造成后期养护成本的增加。该文结合沥青面层原材料、级配、透油层以及施工工艺等各方面因素,分析粗粒式沥青混合料产生推移的原因,并就此提出一些改善措施,减少实际施工过程中推移的产生。更多还原

【Abstract】 The pavement movement is easy produced in the construction of coarse-asphalt mixture.This phenomenon could make a great number of lateral microcracks existing in the lay of asphalt concrete.The cracks would influence the service performance and life of the asphalt concrete,and add up the maintenance cost.In this paper,the reasons of pavement movement are analyzed on the aspect of virgin materials,gradation of asphalt mixture,permeability and the construction technology.And some improvement measures are made to reduce the production of pavement movement.更多还原