Application of mathematical model for the process of coal tar pitch modified petroleum asphalt

ABSTRACT

This paper firstly discusses the properties of modified asphalt by blending petroleum asphalt and coal tar pitch. Then, a new mathematical model which was called ZQL was constructed. Based on three variables, property, granularity size, and proportion, the three-dimension function was fit, where the property was set as a dependent variable and the rest of the variables were set as independent variables. The different functions were finally obtained. Finally, based on the British standard of road asphalt, we solve the ZQL model and obtain a suitable result which matches the experimental results very well.

KEYWORDS:

• Mathematical model
• coal tar pitch
• petroleum asphalt
• modification, application

Additional information

Funding

This work was supported by Natural Science Foundation of Shanxi Province under grant numbers 201601D102011 and 2012011008-3 by and Postgraduate Technical and Scientific Innovation Foundation of Taiyuan University of Science and Technology under grant number 20145033.