用于石油沥青的改性材料种类较多,其中ＳＢＳ是改性沥青的较好材料,耐低温性能也较好,但耐高温性能略差。ＡＰＰ也是改性沥青的好材料,耐高温性能很好,但耐低温性能较差。实验结果表明:二者混用比单独使用ＳＢＳ或单独使用ＡＰＰ改性沥青性能好得多,可提高其软化点、延伸度、粘 There are many types of modified materials used in petroleum asphalt, among which SBS is a good material for modified asphalt, and its low temperature resistance is also good, but its high temperature resistance is slightly inferior. APP is also a good material for modified asphalt, with good high temperature resistance but poor low temperature resistance. The experimental results show that the use of the two blends is much better than the use of SBS alone or the use of APP alone to modify the asphalt, and can increase its softening point, elongation, and stickiness.