| 引用本文: | 陈瑶,谭忆秋,陈克群.TPS改性剂对高粘沥青性能的影响[J].哈尔滨工业大学学报,2012,44(6):82.DOI:10.11918/j.issn.0367-6234.2012.06.019 |
| CHEN Yao,TAN Yi-qiu,CHEN Ke-qun.Effect of TPS modifier on the properties of high-viscosity asphalt[J].Journal of Harbin Institute of Technology,2012,44(6):82.DOI:10.11918/j.issn.0367-6234.2012.06.019 |
|
| 摘要: |
| 为制备适于我国排水性沥青路面应用的高粘沥青,通过室内试验研究高粘沥青添加剂TPS对两种不同油源的90＃基质沥青的改性效果．以60 ℃黏度作为评价高粘沥青的关键指标,重点研究TPS掺量变化对改性沥青60 ℃黏度及其他物理性能的影响规律．结果表明:TPS对两种不同油源的基质沥青的改性效果差异较大,尤其对于60 ℃动力黏度指标,在相同TPS掺量下,基质沥青的沥青质含量越大,改性沥青的60 ℃黏度越大，二者的配伍性较好,推荐TPS掺量（质量分数）为14％～16％,此时改性沥青胶结料的60 ℃黏度增长迅速,能够满足高粘沥青的黏度要求,且改性沥青胶结料的感温性、高温稳定性与低温抗裂性、弹性恢复能力等都得到了较大程度的提高． |
| 关键词: TPS 基质沥青 配伍性 60 ℃动力黏度 物理性能 |
| DOI：10.11918/j.issn.0367-6234.2012.06.019 |
| 分类号:U414 |
| 基金项目:国家“十一五”科技支撑计划项目(2008BAG10B02) |
|
| Effect of TPS modifier on the properties of high-viscosity asphalt |
|
CHEN Yao1,2, TAN Yi-qiu1, CHEN Ke-qun3
|
|
1.School of Transportation Science and Engineering,Harbin Institute of Technology, 150090 Harbin,China;2.College of Architectural and Civil Engineering,Heilongjiang University, 150080 Harbin,China;3.Guizhou Province Department of Highway Administration, 550003 Guiyang,China
|
| Abstract: |
| To prepare high-viscosity asphalt for drainage asphalt pavement in China, the effect of TPS contents and kinds of base asphalt on the properties of modified asphalt was investigated by tests in laboratory. The 60 ℃ dynamic viscosity is an important parameter for high-viscosity modified asphalt. The results indicate that strong correlations exist between the chemical composition of base asphalt and the properties of TPS modified asphalt. The viscosity of modified asphalt at 60 ℃ increases with the increasing of asphaltine content of base asphalt at same contents of TPS. When the TPS content is between 14％-16％, it has significant influence on viscosity of modified asphalt at 60 ℃, the viscosity increases rapidly, and can reach to specifications for high-viscosity modified asphalt. The temperature sensibility of the asphalt modified by TPS is decreased obviously, and the high-temperature stability, cracking resistance at low temperature and elastic recovery are all increased. |
| Key words: TPS base asphalt compatibility 60 ℃ dynamic viscosity physical property |
