Mechanical evaluations of reinforced-rehabilitated bituminous pavement layers with geosynthetic materials

Abstract

Bituminous pavements cover a large part of the Canada’s roadway network. Traffic and environmental loadings cause distresses and damages in the pavement structure. A traditional approach for pavement rehabilitation is to implement an asphalt overlay on existing deteriorated bituminous pavement at specific times during its service life. However, this approach is somewhat expensive in the long run and not environmentally friendly. On the other hand, several studies indicate that the inclusion of a geosynthetic layer under an asphalt overlay leads to extended pavement service life. Nevertheless, there are still some discrepancies between fields and modeling results, which mainly stems from the fact that the mechanical behavior of reinforced asphalt overlay has not entirely been understood which results in underestimate or overestimate design solutions. This research aims to review different aspects of mechanical interaction between geosynthetic material and bituminous pavement layers and then shed light on the important considerations that need to be considered in the mechanisticbased design approaches to obtain an efficient reinforced-rehabilitated bituminous pavement structure.

Date	20 Dec 2020
Original language	American English
Awarding Institution	École de technologie supérieure
Supervisor	Alan Carter (Supervisor) & Nicolas Bueche (Co-supervisor)