Volume 10, Issue 2 (June 1987)

    Procedure for Determining the Segregation Potential of Freezing Soils

    CODEN: GTJOAD

      Format Pages Price  
    PDF Version 8 $25   ADD TO CART


    Abstract

    Basic frost heave data obtained from various types of laboratory freezing tests, using computerized ramp temperature generation and temperature control at both warm and cold ends of a soil specimen, are analyzed to determine the segregation potential. Automatic volume change measurements provide fair values of cumulative water intake, but not accurate water intake rates. A method based on accurate measurements of total heave, taking into account the amount of heave from in-situ freezing of pore-water, yields relevant freezing characteristics of soils. Precise and automatic acquisition of temperature measurements and of total heave during an open-system freezing test enables accurate definition of the segregation potential, the suction at the frozen-unfrozen interface and the rate of cooling of the frozen fringe, immediately after testing. Examples of freezing test results are given to emphasize the influence of various factors such as the temperature at the segregation-freezing front, the soils porosity, and the unfrozen water content on the segregation potential of freezing soils.


    Author Information:

    Konrad, J-M
    Associate Professor, University of Waterloo, Waterloo, Ontario


    Stock #: GTJ10933J

    ISSN: 0149-6115

    DOI: 10.1520/GTJ10933J

    ASTM International is a member of CrossRef.

    Author
    Title Procedure for Determining the Segregation Potential of Freezing Soils
    Symposium , 0000-00-00
    Committee D18