Abstract
The glued concrete overlay method is one of the promising rehabilitation methods for the elevation and/or the slope correction of the subsidence part in airport concrete pavements. Especially, in the bonded concrete overlay method using epoxy adhesive, these advantages can be expected compared to the method using water jet demolishing, such as to reduce surface treating works, to reduce the debris waste, and then to reduce the total operation cost. In order to attempt the further evolution of this method, the applicability of epoxy spraying machine was examined. And also, the basic evaluation of the epoxy adhesive, the development of the machine system of in-line mixing and spraying of the adhesive, and the test application of this method at HANEDA airport were conducted. In this report, the applicability of this machine epoxy spraying concrete overlay method was discussed based on the indoor examination results and the field application results.
