Reserch On Timing Of Asphalt Pavement Maintenance

As the construction of domestic highways develops rapidly, more and more highways needmaintenance so that the maintenance funds are relatively in short of supply and the quality ofmaintenance is low. The most effective way to change the current passive situation is to adoptpreventive maintenance . Pavement preventive maintenance plays a significant role in preservingthe function of highways and its effectiveness is closely related to the timing of maintenance.However, a better way to seize the right time has not yet been found home and abroad up tonow .With highway of city Cangzhou as study object , choose the representational road and takedate of it. Through estimating and forcast pavement performance , ascertain section which needmainten and work out countermeasure.When estimating pavement performance , the paper puts forwards to a new syntheticassessment system based on attribute mathematical theory and utilizes Analytic HierarchyProcess to ascertain the weight; Forcast pavement performance by grey-Markov probabilityprediction model ; With the result of estimate and forcast, then the analyse of some effectivetechniques of pavement preventive maintenance home and abroad helps the maintenancedepartment take the best preventive maintenance measure according to different states ofhighways.