Several roads, airfield pavements, and parking lots in Texas and other states in the western United States have suffered severe pavement damage due to expansive minerals formed from the reactions of calcium-based materials used to stabilize sulfate-bearing soils. Remediation costs for projects that suffer sulfate-induced heave damage are very high, because often the entire pavement may have to be removed and reconstructed. Observations from several projects are described to illustrate the phenomenon of sulfate-induced heave and the current methods to predict the problem. Two recent projects described include one using cement as a replacement for lime and a second using a double application of lime. The discussion also includes limitations of the present methods for determining the so-called soluble sulfate levels in soils. The practice of a double application of lime and several other alternative methods and their limitations are discussed. Although research has clearly identified the expansive minerals as being calcium bearing, no published investigations of non-calcium-based stabilizers that could effectively stabilize sulfate-bearing soils were found.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Sulfate-Bearing Soils: Problems with Calcium-Based Stabilizers


    Weitere Titelangaben:

    Transportation Research Record


    Beteiligte:


    Erscheinungsdatum :

    1996-01-01




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Sulfate-Bearing Soils: Problems with Calcium-Based Stabilizers

    Kota, Prakash B.V.S. | Online Contents | 1996


    Sulfate-Bearing Soils: Problems with Calcium-Based Stabilizers

    Kota, Prakash / Hazlett, Darren / Perrin, Les | Transportation Research Record | 1996


    Testing and Modeling Soils and Soil Stabilizers

    D. J. Goodings / J. R. Montalvo / C. A. Bell et al. | NTIS | 1984


    Killing the Ettringite Reaction in Sulfate-Bearing Soils

    Harris, Pat / Harvey, Omar / Jackson, Leah et al. | Transportation Research Record | 2014