Study on SBS Modified Asphalt of I-D in Commercial Test

China petrochemical Maoming branch corporation applied physical dispersion and chemical modification to explore the production of I-D modified asphalt in the 10~4 t/y industrialized plant.The test result shows that I-D modified asphalt produced by the method D completely meets technical standard of styrene-butadiene-styrene block copolymer(SBS) modified asphalt(JTJ036-98) and some indexes are better than it.The test result shows further that the change of mass fraction of SBS is the key to increase PI.With the increase of mass fraction of SBS,the viscosity of the modified asphalt increases,PI and ductility increase at the beginning and decrease later;When the mass fraction of SBS is different,the effect on the modified asphalt by the compatilizer is different.