Experimental Research On Interface Processing Technology Of Rigid-flexible Composite Pavement Structure

This paper rely on the project from Chongqing traffic research and design instituteborne by the Guangdong Provincial Department of Communications Science andTechnology project called "Overloading traffic interface of composite pavementstructure and processing technology research" which the subject of the manner ofdisposal of the intermediate interface layer of rigid-flexible composite pavementresearch.The combination of the pros and cons of rigid-flexible composite pavementintermediate interface layer is one of the important factors that affect the service life ofcomposite pavement. The phenomenon of road surface damage is still widespreadthough there is already some research on treatment of boundary layers at home andabroad. In order to effectively solve this problem, the article will focus on the middleof the rigid-flexible composite pavement interface layer measures to deal with in-depthstudy and presents the application of to exposed-aggregate deep structure interfaceprocessing technology to solve the weak link of the rigid-flexible composite pavementintermediate interface layer method.By combined entity project and test analysis, this paper focus onexposed-aggregate deep-structure interface processing technology research. Contrast toproven exposed-aggregate solvent, matching out one kind of solvent adopt toGuangdong project site which is economic and effective；Test analysis some importanttechnical parameters of deep-structure interface processing technology；Throughlaboratory shear and pull-out test compared the different interface layer handlingability of bonding performance and shear effect, and analyzed under differenttemperature conditions, the shear strength of the interface layer;Studies theexposed-aggregate interface with the construction process as well as from the projectcost were calculated the total cost of the two exposed-aggregate solvent, determine theeconomic advantages of the agent to be deployed exposed-aggregate.The conclusions show that:①exposed-aggregate deep-structure interfaceprocessing technology not only because of the coarse aggregate exposed and has awealth of surface roughness, a substantial increase in the shear capacity of the interfacelayer, and in high temperature conditions compared to other treatment still has a goodinterface shear behavior to improvements in rigid-flexible composite pavement road performance and the purpose to improve its service life；②self-deployment the No.2exposed-aggregate solvent and mature the No.1exposed-aggregate solvent similar toexposed-aggregate, pull and shear test to verify the No.2exposed-aggregate solventinterface has a good interfacial adhesion and shear capacity and contrast the No.1exposed-aggregate solvent has a significant economic.