Research On The Key Index System Of Asphalt Pavement Preventive Maintenance

With the increase of asphalt road mileage of China’s highway maintenancemanagement stage career began to transition from the construction phase, increasing theworkload of the maintenance department. To change the current situation of the passiveconservation, implementing preventive maintenance is an effective way. Pavementpreventive maintenance is important for maintaining good pavement performance.Preventive Maintenance selection determines the timing of the effect of preventivemaintenance, preventive maintenance, however the problem for determining the timing,Currently no better solution.Firstly, the common Pavement summarized, and the main characteristics of diseaseintroduction. Derived by analyzing the distribution of disease investigation pavementdiseases. Second, in the face of disease on the roads summarizes the commonpreventive maintenance measures, vaccinations for common decision makingconservation measures introduced preventive conservation measures. Finally, this papercompared the cost-effectiveness of the method of slurry seal to take preventiveconservation analysis.According to the characteristics of preventive maintenance engineering thesis,focusing considered routine maintenance costs, expenses, maintenance costs affect theresidual value of preventive maintenance measures. After taking the fog seal coatpreventive maintenance measures on the road to get some changes in each index, by allindicators in the pavement condition index weightings worth pavement condition indexto change, then the way to get fit with a binomial changes in pavement condition indexcurve. A ratio of the final pavement condition index curve by integrating the resultingeffect of the cost of that area and the cost-effectiveness ratio. After taking preventiveconservation measures at different times of the calculated ratio of the maximum benefitcost ratio for the best, that is the best preventive maintenance time.