基于DSR试验方法检测SBS改性沥青热储存稳定性的影响因素研究

Study on Influencing Factors of Detecting Thermal Storage Stability of SBS Modified Asphalt Based on DSR Test Method

为更好掌握SBS改性沥青热储存稳定性快速检测方法,详细考察了基质沥青品牌与牌号、SBS改性剂种类与用量、样品加热温度与加热时间等对稳定因子(Sf)的影响。结果表明:基质沥青牌号、SBS改性剂种类、SBS改性剂用量、样品加热温度对SBS改性沥青Sf影响显著,而基质沥青品牌、样品加热时间对SBS改性沥青的Sf影响较小。

In order to better master the rapid detection method of thermal storage stability of SBS modi⁃fied asphalt,the influence of the brand and grade of base asphalt,the type and amount of SBS modifier,the sample heating temperature and heating time on the stability factor Sf were investigated in detail.The results showed that the grade of base asphalt,the type of SBS modifier,the amount of SBS modifier,and the heating temperature of the sample have significant effects on the stability factor Sf of SBS modified asphalt.However,the brand of base asphalt and the heating time of the sample have little effect on the stability factor Sf of SBS modified asphalt.