A Rapid Method for the Determination of SBS Content Based on the Principle of Orthogonal Testing

The performance of Styrene-butadiene-styrene (SBS) modified asphalt is closely related to the content SBS modifier. In production process asphalt, a certain amount additive such as sulfur and rubber oil may be added reduce segregation promote swelling polymer, but effect these additives on determining in not yet clear. This paper presents calibration curves based rutting factor creep slope points out its defects according temperature scanning test bending beam rheometer test. Subsequently, using Fourier transform infrared spectroscopy (FTIR) for rapid determination polymer orthogonal then effects type, content, accuracy by FTIR were investigated. Moreover, tests adding oil, multivariate analysis variance (MANOVA) was firstly used analyze influence FITR. Results indicated that influencing degree different different. greater than oil. Therefore, method needs further improvement.