| SBS/ 多聚磷酸复合改性沥青低温蠕变特性分析 |
| |
| 引用本文： | 杨晓林.SBS/ 多聚磷酸复合改性沥青低温蠕变特性分析[J].中国建材科技,2018,27(3):29-31. |
| |
| 作者姓名： | 杨晓林 |
| |
| 作者单位： | 甘肃省公路管理局 |
| |
| 基金项目： | Road engineering; SBS/polyphosphoric acid modified asphalt; low temperature performance; BBR |
| |
| 摘 要： | 为分析多聚磷酸掺量对SBS/多聚磷酸复合改性沥青低温性能的影响,采用弯曲梁流变仪对SBS/多聚磷酸复合改性沥青和SBS改性沥青的低温蠕变劲度(S)与松弛特性(m)进行了试验测试,分析多聚磷酸掺量以及测试温度对其粘弹性组成的影响,并与SBS改性沥青进行比较。结果表明:SBS/多聚磷酸复合改性沥青的S和m值在很大程度上取决于多聚磷酸的掺量,多聚磷酸掺量越大,复合改性沥青的S值越大,m值越小,SBS/多聚磷酸复合改性沥青的低温性能随多聚磷酸掺量的增加而降低。
|
| 关 键 词： | 道路工程 SBS/多聚磷酸复合改性沥青 低温性能 BBR |
Creep characteristics of SBS/polyphosphate composite modified asphalt at low temperature |
| |
| Yang Xiaolin.Creep characteristics of SBS/polyphosphate composite modified asphalt at low temperature[J].China Building Materials Science & Technology,2018,27(3):29-31. |
| |
| Authors: | Yang Xiaolin |
| |
| Abstract: | To analyze the effect of polyphosphoric acid content on the low temperature performance of SBS/polyphosphoric acid modified asphalt, applied BBR to test the low temperature creep stiffness(S) and relaxation properties (m) of SBS/ polyphosphoric acid modified asphalt and SBS modified asphalt.The effect of the amount of polyphosphoric acid on viscoelastic of SBS/polyphosphoric acid modified asphalt was analyzed and compared with SBS modified asphalt.The results shown that S and m values of SBS/polyphosphoric acid modified asphalt largely depend on the content of polyphosphoric acid.The greater the content of polyphosphoric acid, the greater the S value of the composite modified bitumen and the smaller the m value; the low temperature performance of SBS/polyphosphate modified asphalt decreases with the increase of polyphosphoric acid content. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国建材科技》浏览原始摘要信息 |
|
点击此处可从《中国建材科技》下载全文 |
