环氧沥青混合料低温性能及评价指标

冉武平; 凌建明; 谷志峰

doi:10.3969/j.issn.0258-2724.2017.05.013

环氧沥青混合料低温性能及评价指标

doi: 10.3969/j.issn.0258-2724.2017.05.013

基金项目:

国家自然科学基金资助项目（U1433201）

详细信息

作者简介:
冉武平(1977-),男,副教授,博士,研究方向为道面结构设计,E-mail:ranwp@xju.edu.cn

通讯作者:
凌建明(1969-),男,教授,博士,研究方向为道路与机场工程,E-mail:jmlingo1@yahoo.com.cn

计量
- 文章访问数: 575
- HTML全文浏览量: 78
- PDF下载量: 58
- 被引次数: 0
出版历程
- 收稿日期: 2016-09-10
- 刊出日期: 2017-10-25

Low Temperature Performance and Evaluation Index of Epoxy Asphalt Mixture

摘要

摘要: 为了给低温条件下环氧沥青混合料道面设计提供理论依据，通过室内试验，研究了环氧沥青混合料低温开裂性能及性能评价指标.通过沥青混合料多种低温评价指标适用性分析，建议低温劈裂强度作为评价环氧沥青混合料低温抗裂能力的指标；寒冷地区新建的环氧沥青道面结构设计，以低温开裂临界温度-31℃作为考虑面层低温开裂的设计指标，以低温劈裂强度作为结构设计控制指标.结果表明，环氧沥青混合料在低温条件下蠕变速率小，塑性差，但低温抗裂性能较好，抗拉强度是同类型改性沥青混合料的1.3~2.0倍，劲度模量为1.3~1.9倍.
- 环氧沥青混合料 /
- 试验研究 /
- 低温抗裂性能 /
- 评价指标 /
- 控制标准
Abstract: In order to establish a theoretical basis for the design of epoxy asphalt pavement under low temperature conditions, in this study, the cracking performance and evaluation indexes of epoxy asphalt mixtures under low temperature conditions were investigated through laboratory tests. Based on the applicability analysis results of various low temperature evaluation indexes of asphalt mixtures, splitting strength is recommended as an index for evaluating the low temperature resistance of epoxy asphalt mixtures. In the design of new epoxy asphalt pavement structures for cold regions, -31℃ is set as the critical cracking temperature design index of the surface layer at low temperatures, whereas low temperature splitting strength is regarded as the structural design control index. Results show that in epoxy asphalt mixtures, low temperature creep rate is small and low temperature plastic deformation ability is low, but low temperature anti-cracking performance is improved. The observed epoxy asphalt tensile strength is 1.3-2.0 times larger and stiffness modulus is 1.3-1.9 times larger than the corresponding properties of a similar type of modified asphalt mixture.
- epoxy asphalt mixtures /
- experimental study /
- low temperature crack resistance /
- evaluation index /
- control standards

HTML全文

参考文献(16)

姚祖康. 沥青路面结构设计[M]. 北京:人民交通出版社, 2011:218-241.

MONISMITH C L, SECOR G A, SECOR K E. Temperature induced stresses and deformations in asphalt concrete[J].Association of Asphalt Paving Technologists Proceedings, 1965, 34:248-285.

KANERVA H K. Low temperature cracking field validation of the thermal stress restrained specimen test[R].[S.1.]:National Research Council, 1994.

WITCZAK M W, KALOUSH K, PELLINEN T, et al. Simple performance test for superpave mix design, NCHRP report 465[R]. Washington, D. C.:Transportation Research Board, 2002.

张登良. 沥青路面[M]. 北京:人民交通出版社,1999:35-100.

郝培文,张登良. 沥青混合料低温抗裂性能评价指标[J]. 西安公路交通大学学报,2004,20(3):1-5. HAO Peiwen, ZHANG Dengliang. Evaluation method for low temperature anti-cracking performance of asphalt mixture[J]. Journal of Xi'an Highway University, 2004, 20(3):1-5.

BUSBY E O, RADER L F. Flexural stiffness properties of asphalt concrete at low temperatures with discussion[J].Association of Asphalt Paving Technologists Proceedings, 1972, 41:87-163.

张占军,闵召辉,黄卫. 不同交联度环氧沥青混合料低温弯曲性能研究[J]. 中国公路学报,2012,25(1):35-39. ZHANG Zhanjun, MIN Zhaohui, HUANG Wei. Study of epoxy asphalt mixture low temperature bending of performance different crosslinking degree[J]. China Journal of Highway and Transport, 2012, 25(1):35-39.

中华人民共和国行业标准. JTG E20-2011公路工程沥青基沥青混合料试验规程[S]. 北京:人民交通出版社,2011.

张熙颖. 沥青混合料低温抗裂性能蠕变试验研究与分析[J]. 中外公路,2007,27(6):177-179. ZHANG Xiyin. Research and analysis of creep test of asphalt mixture crack resistance at low temperature[J]. Journal of China & Foreign Highway, 2007, 27(6):177-179.

KANERVA H K. Prediction of low temperature cracking of asphalt concrete mixtures with thermal stress restrained specimen test[D].[S.1.]:Oregon State University, 1993.

侯金成. 纤维沥青混凝土粘弹性能研究[D].大连:大连海事大学,2007.

LEE S J, AKISETTY C K, AMIRKHANIAN S N. Recycling of laboratory-prepared long-term aged binders containing crumb rubber modifier[J]. Construction & Building Materials, 2008, 22(9):1906-1913.

谭国湖,李熙. SMA沥青混合料低温性能试验研究[J]. 公路,2012,11:194-197.

李晓娟,韩森,贾志清,等. 基于弯曲试验的沥青混合料低温抗裂性研究[J]. 山东大学学报:工学版,2010,40(6):88-93. LI Xiaojuan, HAN Sen JIA Zhiqing, et al. Research of the crack resistance of the asphalt mixture based on the low-temperature bending test[J]. Journal of Shandong University:Engineering Science, 2010, 40(6):88-93.

HILLS J F, BRIEN D. The fracture of bitumens and asphalt mixes by temperature induced stresses[J]. Proceedings of the Association of Asphalt Paving Technologists, 1966, 35:292-309.

施引文献

附加材料(0)

访问统计