Research Results

Ballast Degradation Characterized through Triaxial Testing

  • 21
  • Jun
  • 2016
AUTHOR: Federal Railroad Administration
REPORT NUMBER: RR 16-21
KEYWORDS: Ballast degradation, triaxial testing, LA abrasion test
ABSTRACT: Transportation Technology Center, Inc. (TTCI) has supported the development of a large-scale triaxial test device for testing ballast size aggregate materials at the University of Illinois at Urbana-Champaign (UIUC). This new test equipment uses monotonic compression and repeated load testing to characterize shear strength, resilient modulus, and permanent deformation behavior of railroad ballast materials.
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