The rheological properties of SBS modified bitumen after RTFO/PAV are studied by using bending beam Rheometer (BBR), which is one of the test methods of SHRP.

• 运用SHRP试验方法中的弯曲梁流变仪(BBR)分别对制得的这些SBS改性沥青的RTFO/PAV残留物的流变特性进行了试验研究。