| 基于等针入度的沥青固有与改善性能的流变性分析 |
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| 引用本文： | 张海涛,黄爽.基于等针入度的沥青固有与改善性能的流变性分析[J].科学技术与工程,2020,20(8):3280-3283. |
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| 作者姓名： | 张海涛 黄爽 |
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| 作者单位： | 东北林业大学土木工程学院,哈尔滨150040;东北林业大学土木工程学院,哈尔滨150040 |
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| 基金项目： | 黑龙江省交通运输厅重点项目。 |
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| 摘 要： | 为了研究道路沥青固有与改善性能,在以代表高温性能的针入度指标基础上,研究相同等级针入度条件下的两种类型道路沥青在短期老化过程中针入度及其他指标的变化情况,分析不同道路沥青老化机理。同时再利用动态剪切流变实验对沥青进行高温老化分析,由此得出苯乙烯-丁二烯-苯乙烯三嵌段共聚物(styrene-butadiene block copolymer)SBS改性沥青的流变性能和抗变形性均优于基质沥青、等同于沥青的改善性能、优于沥青固有性能的结论。
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| 关 键 词： | 沥青性能 等针入度 流变特性 车辙因子 对比分析 |
| 收稿时间： | 2019/7/8 0:00:00 |
| 修稿时间： | 2019/12/9 0:00:00 |
Rheological analysis of asphalt inherent and improved properties based on equivalent penetration |
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| Zhang Haitao and Huang shuang.Rheological analysis of asphalt inherent and improved properties based on equivalent penetration[J].Science Technology and Engineering,2020,20(8):3280-3283. |
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| Authors: | Zhang Haitao and Huang shuang |
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| Institution: | College of Civil Engineering,Northeast Forestry University,Harbin,150040,China |
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| Abstract: | In order to study the inherent and improving performance of road asphalt, based on the needle penetration index representing high temperature performance, the changes of needle penetration index and other indexes of two types of road asphalt under the same grade of needle penetration index during the short-term aging process were studied, and the aging mechanism of different road asphalt was analyzed.At the same time, the dynamic shear rheological experiment was used to analyze the high temperature aging of asphalt. |
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| Keywords: | Asphalt inherent and improved properties Rheological properties Comparative analysis |
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