Effect of Sisal Fiber on Asphalt Mixture Performance

摘要

Performances were conducted to analyze the sisal fiber modified asphalt mixture and no fiber modified asphalt mixture such as rutting test, cracking test and moisture sensitivity test etc. A certain groups of comparative tests were conducted by adding the different length and different quantity of the sisal fiber toward the bituminous mixture. The various performance curves were drawn and the best length and the best quantity of the sisal fiber in the bituminous mixture were determined based on the results of these comparative tests. The tests results show that the sisal fiber additive could improve the performance of asphalt mixture significantly. In addition, the sisal fiber modifier could also improve the cohesive force of asphalt and enhance the ability against distortion. It is suitable for road surface material.