Abstract
This study focuses residual settlement of asphalt pavement system subjected to traffic loads in the view of geotechnical engineering. Firstly, the effects of residual deformation properties of the base aggregates during wheel loading that is concerned with stress conditions in the subbase layer was investigate by performing of laboratory wheel loading test of asphalt pavement. At the results of model loading test, it was confirmed that large residual deformation of the base aggregates due to traffic loads lead degradation of asphalt mixture material. The effects of geogrid-reinforcing technologies on the residual deformation characteristics of the asphalt pavement structure were also examined in the present study. This study investigates the performance of the followings three geosyntheticreinforcing technologies applied to the subbase layer on the stability of pavement system; a) short-fiber mixing, b) geogrid-reinforcing, and c) combined of short-fiber mixing and geogrid-reinforcing. The residual settlement of the subbase layer caused by traffic loading can be reduced by applied the above reinforcing technologies.
