FIELD STABILIZATION OF CHINLE CLAY BY ELECTRO-OSMOSIS AND BASE EXCHANGE OF IONS

A large scale soil stabilization project was initiated in July 1973. A 500-foot section, which is part of a 1300 foot cut on I-40 35 miles east of Holbrook, Arizona, was selected as the test site. The natural soil in the area is Chinle clay, a highly expansive Montmorillonite clay. The stabilization technique used on the Chinle clay was treatment with a 0.4N solution of KCl and electrochemical action. Results show that this method of soil stabilization produced a moderate decrease in the swelling characteristics of the Chinle clay, i.e., about a 50% decrease in expansive pressure and a 36% decrease in percent swell. Moreover, the electron miciographic and x-ray diffraction data have indicated some probable causative factors for the decrease in the swelling characteristics of the Chinle clay.

  • Supplemental Notes:
    • Prepared in cooperation with Arizona State Univ., Tempe.
  • Corporate Authors:

    Arizona Department of Transportation

    Research Branch, 206 South 17th Avenue
    Phoenix, AZ  USA  85007

    Arizona State University, Tempe

    206 South 17th Avenue
    Tempe, AZ  USA  85281

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Authors:
    • Mancini, F P
    • O'bannon, C E
  • Publication Date: 1975-10

Media Info

  • Pagination: 138 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00144026
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA/AZ/RD-145 Final Rpt.
  • Files: NTIS, TRIS, USDOT, STATEDOT
  • Created Date: Dec 15 1977 12:00AM