Abstract:

According to the concept of designing material and the modem material design method,a kind of asphalt Overlay material FAC used on concrete pavements was designed.The whole design process includes the evaluation of the mechanics environment and the using condition,the determination of the design principles,the implementa-tion of the material design as well as the evaluation of the FAC perform ance.Moreover,the discrete element method was applied to the analysis and verification of FAC,based on which a simulative test was developed.The results of
application of the material to several projects and the experience of three-year investigation show clearly that FAC is of optimal perform ance，and that the proposed design method and the procedure are both feasible.

Key words: concrete pavement, asphalt overlay, mixture design, discrete element