This report gives a complete summary of the test data on shales generated by ISHC and Purdue University. Details are given for a very simple storage and retrieval system which is adequate for the small amount of data (163 sets) available at the present time. Results are presented from the different statistical analyses that were performed. These results include histograms, bivariate correlation coefficients and regression equations. Reasonably good bivariate correlations exist between the different indices describing the slaking resistance of shales. These correlations are however improved by using quadratic equations. Various regression equations are proposed for determining CBR from various parameters, usually a combination of five. It became clear during the investigation that it is important to have as many complete data sets as possible for future analyses. The standardization of testing methods is also of utmost importance in order to increase the potential of the data bank.

  • Supplemental Notes:
    • Prepared in cooperation with Federal Highway Administration, Indianapolis, Ind. Indiana Div.
  • Corporate Authors:

    Purdue University/Indiana Department of Transportation JHRP

    Purdue University, School of Civil Engineering
    West Lafayette, IN  United States  47907-1284

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    Indiana State Highway Commission

    Indianapolis, IN  United States  46204
  • Authors:
    • Van Zyl, DJA
  • Publication Date: 1977-7

Media Info

  • Pagination: 154 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00180879
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA-IND-78-JHRP7711Intrm Rpt., JHRP-77-11
  • Files: NTIS, TRIS, USDOT
  • Created Date: Sep 14 1978 12:00AM