Asphalt pavement construction period is not determined by the law of the road engineering itself, often has not yet started, the completion date has been set, resulting in the construction organization design out of control duration and optimization of the role. The lack of overall network of supporting projects, when some of the utility pipeline construction control when the control of the road to reduce the construction period, resulting in road construction quality decline, resulting in premature damage to the asphalt pavement, into the maintenance period. In Article 9 of the "Technical Policies and Measures for Highway Maintenance" promulgated and implemented in the "Highway Maintenance Technical Specification" promulgated and promulgated in 19% of China's Ministry of Communications, it expressly stipulates that "vigorously promote and develop road maintenance mechanization". In order to vigorously promote and develop road maintenance machinery, we must make the technical level of conservation machinery continue to improve, to continue to strengthen the maintenance of new materials and new workers Art in-depth study, in particular, to strengthen the new materials, new technology and new equipment, comprehensive research, will achieve a multiplier effect. Therefore, on the asphalt pavement maintenance and repair of new technology research work should be carried out as soon as possible, without delay. As the economic province and traffic province, Jiangsu Province, highway and trunk road pavement asphalt pavement accounted for the vast majority of road network density and road service level ranks the forefront of the domestic. At present, the overall use of asphalt pavement in Jiangsu Province is good. In 2009, the mileage of highway maintenance reached 138,000 km, the proportion of highway maintenance reached 96.1%, and the excellent rate of provincial and provincial highway reached 96.7% and 96.6% respectively. long. At present, the disease of asphalt pavement in Jiangsu Province is mostly in the surface layer, and the disease of the asphalt surface layer is mainly based on cracks, local pits and rutting. How to repair these diseases quickly and efficiently is the future of highway maintenance management at all levels The main problems faced in a few years. road construction methods and idea highly sought after road maintenance machinery best hammer drill manufacturers pavement grooving contractors