High Temperature Performance Evaluation Parameter of Asphalt Based on Generalized Shear Test

被引：0
|
作者：
Sun Y. [1 ]
Zhang Z. [2 ]
Li L. [1 ]
机构：
[1] Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai
[2] Zhejiang Communications Investment Group Co., Ltd., Hangzhou
来源：
Jianzhu Cailiao Xuebao/Journal of Building Materials | 2019年 / 22卷 / 04期
关键词：
Failure strain; Generalized shear modulus; Generalized shear test; Shear stress constant;
D O I：
10.3969/j.issn.1007-9629.2019.04.021
中图分类号：
学科分类号：
摘要：
The generalized shear test was performed using the dynamic shear rheometer under the stress sweep mode. When using the BoxLucas model to fit the test data, the evaluation parameter of asphalt high temperature performance including shear stress constant τ0, failure strain γ0 and generalized shear modulus Gd were developed. During data fitting, it is necessary that the strain corresponding to the end value of the stress loading is greater than 12%. If the strain corresponding to the end value of the stress loading is less than 12%, it may cause a large error on Gd. By comparing the performance of 5 kinds of asphalt, it is found that shear stress constant τ0 and failure strain γ0 are not accurate enough, it is recommended to use generalized shear modulus Gd to evaluate the high temperature performance of asphalt. © 2019, Editorial Department of Journal of Building Materials. All right reserved.
引用
收藏
页码：645 / 650
页数：5
相关论文
共 9 条
  • [1] Jia J., Evaluation and application study of modified asphalt on high temperature performance, (2005)
  • [2] Sun L., Asphalt Pavement Structure Behavior, pp. 484-485, (2013)
  • [3] Li L., Sun D., Zhu X., Et al., Road Engineering Materials, pp. 56-82, (2018)
  • [4] Stuank D., Mogawerw S., Validation of asphalt binder and mixture tests that predict rutting susceptibility using FHWA accelerated loading facility, Association of Asphalt Paving Technologists(AAPT), pp. 109-152, (1997)
  • [5] Sun Y., Li L., The evaluation and analysis of several modified asphalt on viscoelasticity and high temperature performance, Highway Engineering, 33, 4, pp. 79-83, (2008)
  • [6] Bahia H.U., Hanson D.I., Zengect M., NCHRP report 459 characterization of modified asphalt binders in superpave mix design, (2001)
  • [7] Han H., He G., Lu W., Permanent deformation response of asphalt mixuture to generalized dynamic shear modulus of asphalt binder, Journal of Highway and Transportation Research and Development, 21, 3, pp. 1-5, (2004)
  • [8] Han H., Lu W., BoxLucas model reflecting the primary shear stress-strain law of asphalt binder, Petroleum Asphalt, 17, pp. 142-147, (2003)
  • [9] Jin L., Qian Z., Zheng Y., High temperature performance and evaluation index of gussasphalt mortar based on DMA method, Journal of Southeast University(Natural Science), 44, 5, pp. 1062-1067, (2014)
1