Laboratory study on asphalt rubber mixture evaluation index for high temperature performance

被引：0

作者：

Yang G. ^{[1
]}

Huang W.-D. ^{[1
]}

Li Y.-W. ^{[2
]}

Yuan J. ^{[1
]}

机构：

[1] Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University

[2] Shijiazhuang Bureau of Transportation

来源：

Jianzhu Cailiao Xuebao/Journal of Building Materials | 2010年 / 13卷 / 06期

关键词：

Asphalt rubber; Asphalt rubber mixture; Evaluation index; High-temperature performance;

D O I：

10.3969/j.issn.1007-9629.2010.06.010

中图分类号：

学科分类号：

摘要：

Asphalt rubber mixture was made by base asphalt and crumb rubber used in domestic's pavement engineering. By systematic laboratory rutting tests, the relationships between dynamic stability of asphalt rubber mixture and 177°C brookfield viscosity, softening point, penetration of asphalt rubber binder were studied. The results indicate that the 177°C brookfield viscosity and softening point of binder can be used as evaluation index for the high-temperature performance of asphalt rubber mixture. The results also indicate that the Americal requirement(ASTM D 6144-97) for 177°C brookfield viscosity and softening point are inconvenient and corresponding asphalt rubber mixture rutting test result may be too low according to Chinese specification(JTJ F40-2004) for polymer-modified mixture. So more convenient requirement for 177°C brookfield viscosity and softening point are advised based on laboratory rutting tests and domestic's engineering experience. The results also indicate that high-temperature performance of asphalt rubber mixture remarkably varies with different types of crumb rubber.

引用

页码：753 / 758

页数：5

共 5 条

[1] Arizona department of transportation standard specifications for road & bridge construction
[2] ASTM D 6144-97Standard specification for asphalt-rubber binder
[3] Qi X., Shenoy A., Al-Khateeb G., Et al., Laboratory characterization and full-scale accelerated performance testing of crumb: Rubber asphalts and other modified asphalt systems, Proceedings of the Asphalt-Rubber 2006 Conference, pp. 39-68, (2006)
[4] Huang W.-Y., Research on performance and application of tyre rubber modified asphalt concrete, (2004)
[5] Huang W.-Y., Zhang Y.-X., The technical criteria frame of pavement used asphalt rubber in China, Journal of Central South Highway Engineering, 32, 1, pp. 111-114, (2007)

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