Evaluating the Change Characteristics of the Microstructure of the Modified Plant Asphalt Using Soft Computing to Improve the Road Performance for Green Environment

Abstract

Due to the diversity of plant asphalt sources and refining processes, the composition and properties of the various plant asphalts are also different. The plant asphalts are used to preserve the green environment. The natural material is eco-friendly; hence, the usage of plant asphalts is getting promoted these days. There are some problems in the road performance of some source plant asphalt, so the change characteristics of the microstructure of the modified plant asphalt are analyzed in this paper. Firstly, the raw materials are prepared, then the experimental plan is made, and finally the microstructure change characteristics of asphalt at different dosages of 0%, 0.25%, 0.5%, 0.75%, and 1% are studied using the soft computing techniques. It is found that with the increase of the content of polyphosphate, the structure of modified asphalt has changed. The most obvious change is that the volume of asphaltenes becomes smaller, the number of asphaltenes increases, the area of asphalt micelle becomes smaller, and the area of dispersion medium becomes larger. The experimental study is performed to guide the right material for road construction which is eco-friendly for maintaining the green environment.