The purpose of this research was to evaluate the rutting resistance of different asphalt concrete mixtures. Different aggregate gradations used in this research included dense gradation, stone mastic asphalt, and hot rolled asphalt. Three kinds of asphalts, i.e. penetration with 85/100 and 60/70, and modified asphalt, were used to fabricate the specimens. Marshall and gyratory testing machine (GTM) mix design method were utilized to design the mixtures. Resilient modulus tests, indirect tensile tests, wheel tracking tests, and gyratory tests were performed to evaluate the rutting resistance of the mixture. The consequence of this research concluded that SMA had a outstanding performance on resistance of permanent deformation. An advancing evaluating of aging, fatigue, and stripping for SMA were highly recommended. Moreover, constructing an test road to evaluate the performance of SMA in field would also be recommended. (A)
Samenvatting