Study of test and evaluation method on interfacial combining state of asphalt pavement

The interfacial combining problem of asphalt pavement has got more and more attention in resent years.At present,in our country in the active specification for design of highway asphalt pavement the interfacial state of pavement structure is supposed as complete continuity state,which doesn't corresponded with the actual state.Regarded it as the breakthrough point,on the base of the former study,interfacial bond factor was applied to be a token of the change of interfacial combining state of pavement,and the feasibility of the method was testifed by combining test.Moreover,the paper aimed at the typical pavement structure nowadays,established different test combinations and mensurated interfacial bond factor,then on the basis of test results combined the theoretical analysis to put forward the revised range for the checking computation of design index according to interfacial complete continuity in asphalt pavement on the semi-rigid base course of the active specifications.