Effect of SBS Styrene Content on Modified Asphalt Properties
Ten kinds of SBS thermoplastic elastomers with linear structure were prepared by poly-merization,and the corresponding modified asphalt was prepared.The effects of SBS styrene content in two SBS relative molecular weight intervals[(6～10)×104 and(12～14)×104]on the properties of modified asphalt were discussed.The results showed that the addition of SBS could improve the physi-cal and rheological properties of asphalt.The relative molecular weight of SBS had a significant effect on the properties of modified asphalt,and the modified effect was better when SBS had a linear struc-ture and a higher relative molecular weight.Increasing the content of SBS styrene was beneficial to im-prove the high temperature stability,hardness and rutting resistance of modified asphalt.
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NSTL
万方数据
维普
