Study Of Running After And Observing The Long-time Performance Of High-grade Highway Asphalt Pavement

With high-grade highway of city Hengshui as study object, this paper run after, observed and studied to the pavement performance of the representational highway for a long time. By assessment and forecast, we ascertain the section in need of maintenance and constitute the corresponding maintenance measure, choose the west scheme of expense-effect, and then distribute the limited capital to the project with reason, supply credible foundation to improve the construction technique and management level of high-grade highway.When estimating pavement performance, the paper puts forwards to a new synthetic assessment system based on attribute mathematical theory and utilizes Analytic Hierarchy Process (AHP) to ascertain the weight. It avoids the problem when using fuzzy assessment ,reduces the artificial factor .which make the results more scientific and accurate, and introduces the application of this model by using an example.Based on the study production of pavement performance interior and overseas, using the observed data of pavement condition, the paper analyzes the pavement performance of city Hengshui, induces the disintegration curve and disintegration equation, and then forecasts to the pavement performance with the maintenance measure.It will improve maintenance level and management level in all side and come into being economic benefit and social benefit if the study result of the paper is used and extended.