The purpose is to enhance the working properties of waterborne epoxy resin and improve the quality of cold pavement binder usage. In this study, the modified waterborne polyurethane/epoxy composite was prepared. The influence of type and content of polyurethane on the working properties of composite was studied. The optimum composition and ratio of composite were determined. The properties of waterborne epoxy at different working conditions and treatment time were analyzed. The long-term evolution law of property of waterborne epoxy was clarified. The correlation between different working properties of waterborne epoxy was studied.

Road materials;Cold pavement binder;Waterborne epoxy resin;Polyurethane;Long-term working property