This study aims to evaluate experimentally the potential of expansive soil stabilization using different additives: zeolitic tuff (ZT), lime, and a combination of lime and ZT. Four different percentages of ZT (10%, 20%, 25%, and 30%), three percentages of lime (2%, 4%, and 6%), and variable percentages of their combinations were used to stabilize the soil for pavement subbase application. Atterberg limits, pH, compaction, linear shrinkage, swelling, unconfined compressive strength (UCS), and California bearing ratio (CBR) tests were performed on treated and untreated soil specimens at different curing times. Results showed that ZT additives effectively reduced the plasticity, linear shrinkage, and swell potential in addition to increase the maximum dry unit weight, UCS, and CBR. The results of this study were supported by a microstructural analysis using scanning electron microscopy (SEM) associated with the energy-dispersive X-ray spectroscopy (SEM/EDX) technique. It was determined that the UCS and CBR values for the 4% lime stabilized soil increased by 22% and 70%, respectively, after the addition of 25% ZT. Based on evaluation of the results, an optimum mixture of 25% ZT and 4% lime stabilized soil can be used in pavement subbase applications as it achieved the minimum strength target.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Effect of Adding Zeolitic Tuff on Geotechnical Properties of Lime-Stabilized Expansive Soil


    Weitere Titelangaben:

    KSCE J Civ Eng


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2021-12-01


    Format / Umfang :

    14 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    The effect of coffee husk ash on geotechnical properties of expansive soil

    Atahu, Meskerem Kebede | TIBKAT | 2020

    Freier Zugriff

    Hydraulic Conductivity of Compacted Lime-Treated Expansive Soils

    Elkady, Tamer Y. / Shaker, Abdullah / Al-Shamrani, Mosleh | TIBKAT | 2016


    Maximizing Strength of CKD — Stabilized Expansive Clayey Soil Using Natural Zeolite

    Sharo, Abdulla A. / Shaqour, Fathi M. / Ayyad, Jomana M. | Springer Verlag | 2021


    Impact of Quicklime and Fly Ash on the Geotechnical Properties of Expansive Clay

    Hasan, Hayder / Khabbaz, Hadi / Fatahi, Behzad | TIBKAT | 2016