Damage evaluation of ballastless track concrete under high frequency flexural fatigue loading based on surface resistivity

A fatigue loading system with 20 Hz was established to simulate loading characteristics of ballastless track concrete. The surface resistivity (SR) method was utilized to evaluate damage, and its applicability was also explored. The results showed that the value of SR method (ρ) and damage variables (Dρ) exhibited a three-stage trend under fatigue load corresponding to concrete damage process, while frequency and stress level displayed major influence on Stage Ⅲ. Although moisture content and measurement duration had noticeable impacts, ρ effectively expressed fatigue damage features in different concrete. This study highlights SR method for accurately assessing fatigue damage and predicting service life of ballastless tracks.

• Record URL:
  • https://doi.org/10.1016/j.conbuildmat.2023.134363
• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S0950061823040813
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09500618
• Supplemental Notes:
  • © 2023 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Wen, Jiaxin
  • 0000-0002-6229-0096
  • Li, Huajian
  • Yang, Zhiqiang
  • Yang, Zhengxian
  • Dong, Haoliang
• Publication Date: 2024-1-12

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: 134363
• Serial:
  • Construction and Building Materials
  • Volume: 411
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0950-0618
  • Serial URL: http://www.sciencedirect.com/science/journal/09500618?sdc=1

Subject/Index Terms

• TRT Terms: Ballastless track; Concrete; Deterioration; Fatigue tests; Flexural strength
• Subject Areas: Maintenance and Preservation; Materials; Railroads;

Filing Info

• Accession Number: 01902499
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 18 2023 8:46AM