Texas Triaxial - R Value correlation.
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Texas Triaxial - R Value correlation.

Filetype[PDF-1.41 MB]


  • English
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    Details:

    • Alternative Title:
      Texas Triaxial R Value correlation.
    • Creators:
      Roland, Harry L.
    • Corporate Creators:
      Louisiana. Department of Highways
    • Subject/TRT Terms:
    • Resource Type:
      Tech Report
    • Geographical Coverage:
      Louisiana
    • Corporate Publisher:
      Louisiana. Department of Highways
    • Abstract:
      At the time of the instigation of this research the recommended AASHO design formula was based on a Soil Support Value which directly correlated with the "R-Value" system developed by F. N. Haveem, whereas, the flexible pavement design method currently used in Louisiana is based upon the Texas Triaxial Method. The AASHO further recommended that those states using a different design method correlate their past experience and data with the R-Value system. Although correlations, which seemed to be satisfactory, have been obtained for Group Index and CBR methods and a tentative correlation with the Texas Triaxial Strength Classes had been suggested, it appeared that the Texas Triaxial Strength Classes might require some further adjustment. It was with this objective in mind that this research project was undertaken; however, since the later version of the AASHO Recommended Guide for the Design of Flexible Pavement structures establishes the Soil Support Value in an abstract scale, it is felt that any correlation with Soil Support Value, except for an (S) value of 3.0, as such, is beyond the scope of this report. However, a new research project being prepared for the purpose of establishing the different factors used in AASHO design formula will attempt an accurate correlation for Support Values other than 3.0.
    • Format:
      PDF
    • Funding:
      Research Project 61-1S, HPR 1(1)
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