Laboratory development and evaluation of an oleylamine curing Epoxy Asphalt

ABSTRACT

There are still some deficiencies in the development and applications of epoxy asphalt materials, and the chemistry and curing mechanism of epoxy asphalt materials remain unknown. Based on the curing mechanism of commercial epoxy asphalt, an oleylamine curing epoxy asphalt (OCEA) material was prepared, and it was systematically described from the perspective of engineering application and reaction mechanism. The viscosity properties of OCEA were mainly used to predict its reserved time range and temperature during construction. The tensile properties of OCEA and commercial epoxy asphalt are evaluated to show the mechanical properties. The fluorescence microscopy and infrared spectroscopy of the OCEA were analyzed to understand its micromorphology and curing mechanism, and its current advantages are further explained in combination with the tensile properties of OCEA. The results show that the OCEA has the advantage of high strength and toughness. The asphalt phase can participate in the curing reaction of epoxy resin, enhancing the miscibility between constituents, which further enhances the miscibility of the asphalt binder and epoxy resin. This study can provide new materials for engineering epoxy asphalt and implications for further research on epoxy asphalt materials.

KEYWORDS:

• Epoxy asphalt
• curing agent
• curing mechanism
• microscopic properties
• macroscopic properties

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by National Natural Science Foundation of China: [Grant Number 51778142].