Volume 30, Issue 5 (September 2007)

    Comparison of Chilled-mirror Measurements and Filter Paper Estimates of Total Soil Suction

    (Received 2 December 2005; accepted 14 December 2006)

    Published Online: 2007

    CODEN: GTJOAD

      Format Pages Price  
    PDF 8 $25   ADD TO CART


    Abstract

    A comparison of chilled-mirror total suction measurements with those estimated from filter paper total suction data show general agreement. However, there are significant discrepancies that are similar to those previously reported by others. The nature and magnitude of the discrepancies are consistent with: (a) possible errors in chilled-mirror total suction measurements due to incomplete equilibration in the sealed test chamber of the chilled-mirror device, and (b) possible errors in estimated filter paper total suction values due to natural variations of the zero-water-content intercept in the log total suction versus water content relationship. The possible errors in chilled-mirror measurements are easily avoided. The possible errors in estimated filter paper measurements can only be minimized by avoiding the need for an assumed zero-water-content intercept. This can be accomplished far more easily with the chilled-mirror device than with the filter paper method.


    Author Information:

    Patrick, Pamela K.
    Graduate Research Assistant, Research Professor, and Associate Professor, respectively, Colorado School of Mines, Golden, CO

    Olsen, Harold W.
    Graduate Research Assistant, Research Professor, and Associate Professor, respectively, Colorado School of Mines, Golden, CO

    Higgins, Jerry D.
    Graduate Research Assistant, Research Professor, and Associate Professor, respectively, Colorado School of Mines, Golden, CO


    Stock #: GTJ100096

    ISSN: 0149-6115

    DOI: 10.1520/GTJ100096

    ASTM International is a member of CrossRef.

    Author
    Title Comparison of Chilled-mirror Measurements and Filter Paper Estimates of Total Soil Suction
    Symposium , 0000-00-00
    Committee E50