| SBS改性沥青低温性能评价方法 |
| |
| 引用本文： | 栾自胜,雷军旗,屈仆,陈华鑫.SBS改性沥青低温性能评价方法[J].武汉理工大学学报,2010(2). |
| |
| 作者姓名： | 栾自胜 雷军旗 屈仆 陈华鑫 |
| |
| 作者单位： | 陕西省高速公路建设集团公司;陕西省交通建设集团公司;长安大学特殊地区公路工程教育部重点实验室; |
| |
| 基金项目： | 西部交通建设科研项目(200831881210) |
| |
| 摘 要： | 采用了3种基质沥青、3种SBS改性剂,制备了5种SBS改性沥青,通过BBR试验得到沥青的劲度模量S和劲度模量变化率m,计算得到其低温等级温度TLC,并与各沥青的延度值进行比较,结果表明用TLC评价SBS改性沥青的低温性能更加合理。并分析了基质沥青和SBS类型对TLC的影响规律,结果表明,基质沥青中胶质和芳香分含量越高SBS改性沥青低温性能越好,线型SBS改性沥青低温性能优于星型SBS改性沥青。
|
| 关 键 词： | SBS改性沥青 BBR试验 延度试验 低温等级温度 |
Evaluation Methods of SBS Modified-asphalt Binders |
| |
| LUAN Zi-sheng,LEI Jun-qi,QU Pu,CHEN Hua-xin.Evaluation Methods of SBS Modified-asphalt Binders[J].Journal of Wuhan University of Technology,2010(2). |
| |
| Authors: | LUAN Zi-sheng LEI Jun-qi QU Pu CHEN Hua-xin |
| |
| Affiliation: | LUAN Zi-sheng1,LEI Jun-qi2,QU Pu2,CHEN Hua-xin3(1.Shanxi Expressway Construction Group Company,Xi\'an 710054,China,2.Shanxi Provincial Communication Construction Group Company,Xi\'an 710075,3.Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang\'an University,Xi\'an 710064,China) |
| |
| Abstract: | Five SBS modified asphalts were prepared with three neat asphalts and three SBS modifiers.The creep stiffness S and the rate of change of creep stiffness m were obtained based on the BBR tests and the critical low temperatures were computed.According to the comparison between and ductility,is more reasonably used as the evaluation index of low-temperature performance.And the neat asphalts and SBS types' influences on were discussed.The results show that the higher content of resin and aromatic,the better th... |
| |
| Keywords: | SBS modified asphalt BBR test ductility test low grade temperature |
| 本文献已被 CNKI 等数据库收录！ |
|
