Aging, of Flame Retardant Asphalt

摘要

Weight-loss coefficient method and aging index method were employed to investigate and compare the anti-aging performance of two different kinds of flame-retardant asphalt samples (FR-70 and FR-90) prepared by Liaoning University of Petroleum & Chemical Technology. The results showed that at certain temperatures the weight-loss method of FR-70 was better than that of FR-90 as a whole, which indicates that anti-aging performance of FR-70 was better that of FR-90. At the same aging temperature, aging index of FR-70 asphalt was less than that of FR-90, viz. the anti-aging performance of FR-70 was better than that of FR-90. The consistent experimental results from the two methods showed that these two methods are reliable when investigating the anti-aging performance of flame retardant asphalt.