煤沥青与石油沥青混合调制道路沥青的研究

曹东伟; 张海燕; 薛永兵; 赵普

煤沥青与石油沥青混合调制道路沥青的研究

1.
交通运输部公路科学研究院道路结构与材料交通行业重点实验室, 北京 100088;
2.
太原科技大学, 山西太原 030024

基金项目: 国家自然科学基金(51078173)。

详细信息

通讯作者:
曹东伟(1974-), 男, 研究员, 主要从事道路沥青材料改性、路面表面特性、高性能抗滑表层和路面结构等方面的研究工作。E-mail:dongweidenis@gmail.com。

中图分类号: O643
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出版历程
- 收稿日期: 2011-09-17
- 修回日期: 2011-11-03
- 刊出日期: 2012-06-30

Preparation of mixed asphalt by blending coal tar pitch with petroleum asphalt

1.
Research Institute of Highway Ministry of Transport, Key Laboratory of Road Structure and Material, Beijing 100088, China;
2.
Taiyuan University of Science and Technology, Taiyuan 030024, China

摘要

摘要: 采用高效剪切分散仪考察了调配温度、调配时间、搅拌方法等工艺对煤沥青混合石油沥青性能的影响,对优选的样品进行了离析实验、抗老化性能及流变性能评价。结果表明,调配工艺对煤沥青在石油沥青中的分散有重要影响,调配温度的升高、调配时间的延长能促进煤沥青在石油沥青中分散但也会导致调配沥青的老化;煤沥青粒径对调配沥青性能有重要影响,对优选样品的进一步评价表明,调配沥青有好的耐高温流变性能和抗热氧老化性能,储存稳定性可以解决。
- 煤沥青 /
- 石油沥青 /
- 调配 /
- 性能
Abstract: The effects of mixing conditions on the properties of mixed asphalt were examined, including mixing temperature, mixing time, stirring method and coal pitch particle size. Especially, the anti-aging properties, rheological properties and storage stability of the selected samples were investigated. The results show that mixed conditions have an important effect on the dispersion of coal pitch in petroleum asphalt. With the increasing of mixing temperature and time, the dispersion of coal tar pitch in the petroleum asphalt is enhanced, but it also brings about the aging of based asphalt. The particle size of coal pitch has more important effect on the properties of mixed asphalt. The tests of the selected samples indicate that mixed asphalt have good properties of rheological behavior at high temperature, anti-oxidation aging and storage stability.
- coal pitch /
- petroleum asphalt /
- mixed asphalt /
- performance

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参考文献(9)

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