Effect of Hysteresis of Soil-Water Characteristic Curve on Resilient Modulus of Subgrade Soil Under Different Climatic and Stress Conditions

This paper evaluated the hysteresis of the soil-water characteristic curve (SWCC) and its effect on the resilient modulus of the subgrade soil sampled from an experimental road in Hokkaido, Japan by conducting a series of laboratory tests. As an important mechanical characteristic that reflects the resistance of the pavement structure against cyclic loading, the resilient modulus is studied by many researchers. However, most existing studies of the resilient modulus do not consider the effect of the hysteresis of SWCC. To investigate the effect of the hysteresis phenomenon on the resilient modulus of the subgrade soil under various conditions, resilient modulus tests were conducted under different moisture conditions, wheel loading conditions, and temperature conditions along both the drying and wetting paths of the SWCC in this study. Furthermore, test results were fitted by predictive models to verify the applicability and to find an appropriate method to predict the resilient modulus of subgrade soil under various conditions.


  • English

Media Info

  • Media Type: Web
  • Features: Figures; References; Tables;
  • Pagination: 16p

Subject/Index Terms

Filing Info

  • Accession Number: 01874417
  • Record Type: Publication
  • Report/Paper Numbers: TRBAM-23-00296
  • Files: TRIS, TRB, ATRI
  • Created Date: Feb 23 2023 1:11PM