YUAN De-ming,KANG Lei,LIAO Ke-jian,CONG Yu-feng,YAN Feng(School of Petrochemical Technology,Liaoning University of Petroleum & Chemical Technology,Fushun 113001,Liaoning Province,China)
(School of Petrochemical Technology,Liaoning University of Petroleum & Chemical Technology,Fushun 113001,Liaoning Province,China
Abstract��
In order to analyze the aging process of crumb tire rubber modified asphalt,the rolling thin film oven test was performed and the changes of softening point and aging temperature along with aging time were compared between base asphalt and modified asphalt.Based on parameter of softening point,aging kinetics model was established to show aging condition of two asphalts and to calculate activation energies.The results indicated that activation energy of crumb tire rubber modified asphalt was higher than that of base asphat.This improved the anti-aging properties were improved.At last,the aging mechanism of two asphalts was discussed.
YUAN De-ming,KANG Lei,LIAO Ke-jian,CONG Yu-feng,YAN Feng.Aging Kinetics of Two Kinds of Roading Asphalt[J]. Chemcial Industry and Engineering, 2008,25(1): 44-47
2008, Vol. 25 
