SHAPE AND SURFACE ROUGHNESS EFFECTS ON MAXIMUM AND MINIMUM VOID RATIOS OF SAND

Recent work by Youd describes a program undertaken to carefully test and characterize the influence of particle size, shape and gradation on maximum and minimum void ratios of sand. A significant improvement upon previous work is Youd's quantitative assessment of particle shape with parameter, roundness, as opposed to purely qualitative assessment and description-well-rounded, rounded, subrounded, subangular, angular. Youd interpolates test data to provide generalized curves of maximum void ratio versus uniformity coefficient for different values of roundness; particle size was found not to be a factor. Similar curves are presented for minimum void ratio. The current work seeks to compare results for very uniform sands with the Youd curves and evaluate the potential error for a factor heretofore neglected, surface roughness. (Author)

  • Supplemental Notes:
    • Proceedings of the Eighteenth Annual Engineering Geology and Soils Engineering Symposium, held at the Red Lion Inn, Boise, Idaho.
  • Corporate Authors:

    Idaho Transportation Department

    3311 W State Street, P. O. Box 7129
    Boise, ID  USA  83707-1129

    University of Idaho, Moscow

    Department of Geology and Geological Engineering
    Moscow, ID  USA  83844-3025

    Boise State University

    Department of Geology and Geophysics
    Boise, ID  USA 

    Idaho State University, Pocatello

    Department of Geology
    Pocatello, ID  USA  83201

    Idaho State University, Pocatello

    Department of Geology
    Pocatello, ID  USA  83201
  • Authors:
    • Norris, G M
  • Conference:
  • Publication Date: 1980-4

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 187-197

Subject/Index Terms

Filing Info

  • Accession Number: 00334066
  • Record Type: Publication
  • Files: TRIS, STATEDOT
  • Created Date: Sep 16 1981 12:00AM