Abstract:

In order to overcome the limitations of traditional pavement design and evaluation methods,a reverse design method of asphalt pavement is put forward based on the concept of reverse engineering technology,and the cor-responding design process is presented.In the investigation,first,the characteristics of the initial pavement are analyzed,and the whole process,including the material preparation,the core scan and analysis as well as the pavement remolding in laboratory,is described in detail.Then,the designed pavement is tested on a new-pattern pavement material ALF（accelerated loading facility） tester to measure the surface skid resistance at different cycles.Moreover,the similarity principle is introduced to compare the remolded pavement and the original one,with high similarity being obtained,which proves the feasibility,reasonability and reliability of the design method.It is also found that the entropy of skid resistance of the pavement increases after the surface treatment,which means that the pavement maintenance tends to unify the subsystems and stabilize the function of the whole structure.

Key words: asphalt pavement, reverse engineering, pavement design, remolding, accelerated loading test, similarity theory