摘要
为了研究SBS改性沥青的老化性能,通过沥青薄膜烘箱试验,研究了老化温度、老化时间、沥青膜厚度与转速对SBS改性沥青老化性能的影响规律。根据灰色理论关联度分析,得出沥青膜厚度与SBS改性沥青老化性能的关联性最好。因此,提出通过减小SBS改性沥青薄膜厚度改进沥青薄膜烘箱试验的方法。试验结果表明,当SBS改性沥青薄膜厚度为2.568mm时,即当TFOT试验中SBS改性沥青试样质量为41g时,TFOT试验能够准确评价SBS改性沥青短期老化性能。
The impact of aging temperature, aging time, thickness of asphalt film and the rotation speed on the aging properties of SBS modified asphalt was studied with thin film oven test （TFOT）. By means of the correlation analysis based on the grey theory, it is suggested that the thickness of asphalt film has the highest relevance to the aging properties. So an improved TFOT with thinner asphalt film was proposed, and the results show that when the thickness of SBS modified asphalt film is 2. 568 mm, or the mass of SBS modified asphalt sample for TFOT is 41 g, the aging properties can be accurately evaluated by TFOT.
出处
《筑路机械与施工机械化》
北大核心
2016年第9期57-61,共5页
Road Machinery & Construction Mechanization
基金
2015年西京学院科研项目基金(XJ150207)
