Experimental Study of High Temperature Properties and Rheological Behavior of Iranian Rock Asphalt

Abstract

To evaluate the high temperature properties and rheological behavior of Iranian Rock Asphalt(IRA), convectional test and temperature scanning test over modified asphalt containing A-70 asphalt as base asphalt and IRA as different amount were conducted. The results show 1) an increase in asphalt binder’s capability of deformation resistance under high temperature, decreases both in asphalt binder’s temperature sensitivity and low-temperature performance; 2)an increase in anti-rutting factor, a decrease on loss tangent value, an improvement of dynamic viscosity. Thus the asphalt binder’s high temperature performance is greatly improved and anti-rutting capability strengthened.

Influence of Buton Rock Asphalt on the Physical and Mechanical Properties of Asphalt Binder and Asphalt Mixture

“…is method is commonly known as "dry process." However, as seen from the application effect, the Buton rock asphalt cannot play its maximum role due to construction variability such as the mixing uniformity of construction [6][7][8][9][10].…”