Study on Vulcanizing and Asphalt Modifying of Eucommia Ulmoides Gum

Abstract

How to exploiture and apply environmentally friendly and low carbon asphalt modifier is one of technicality problems which are exigent to solved in highway construction. Based on the introduction of vulcanizing process of eucommia ulmoides gum (EUG) and the physical and mechanical properties of vulcanized gum, and the explains of its desirable engineering characteristics as well as its engineering application foreground.,the new approach is presented to use modified asphalt which is a blend of vulcanized EUG and asphalt as new pavement materials of highway. With sweep electron microscope (SEM) and analysis on the improvements of the asphalt`s performance, the best crosslinking degree of asphalt modified vulcanized EUG was studied, and the result indicates that vulcanized EUG has a range of the best crosslinking degree. When the crosslinking degree of vulcanized EUG reaches the range, the vulcanized EUG can improve asphalt`s performances in both low temperature and high temperature, which means it is feasible to use vulcanized EUG for asphalt modifying.