You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.

    Volume 26, Issue 3 (September 2003)

    An Experimental Study of the Mechanics of Two Weakly Cemented Soils

    (Received 26 February 2001; accepted 19 August 2002)

    Published Online: 01 September 2003


      Format Pages Price  
    PDF (856K) 14 $25   ADD TO CART

    Cite this document

    X Add email address send
      .RIS For RefWorks, EndNote, ProCite, Reference Manager, Zoteo, and many others.   .DOCX For Microsoft Word


    The effects of a cementing agent on the mechanical behavior of a quartz sand and a natural silt were studied with drained triaxial tests. The cementing agent was a cement fly ash slurry, and the specimens so formed were weakly cemented. The higher stiffness of the cemented specimens can be explained by the presence of structure, but it may not be always valid to equate structure to the contribution of a cementing agent. Special zero effective confinement tests were conducted to directly measure the contribution of bonding between grains to the strength and stiffness of the two cemented soils. Test results unambiguously indicated the occurrence of progressive bond breakage prior to failure. At a stress state remote from failure, a cemented soil has lower dilatancy relative to the parent soil because of the presence of significant bonding. However, bond breakage occurring at higher shear stress led to a more dilatant soil fabric. The shear strength data followed a curved failure surface that merged back, at high stress, to that of the parent soil. This feature can be captured by a failure function that models the contribution of a cementing agent to strength as two parts, true bonding between soil grains and increase in dilatancy at failure. Both parts degrade with increasing effective confining pressure, but at different rates.

    Author Information:

    Lo, S-CR
    Associate professor, University of New South Wales, ADFA campus, Canberra,

    Lade, PV
    Professor, Aalborg University, Aalborg,

    Wardani, SPR
    Senior lecturer, Diponegoro University, Indonesia,

    Stock #: GTJ11301J


    DOI: 10.1520/GTJ11301J

    Title An Experimental Study of the Mechanics of Two Weakly Cemented Soils
    Symposium ,
    Committee D18