Volume 1, Issue 6 (June 2004)

    Properties of Controlled Low-Strength Materials Made with Wood Fly Ash

    (Received 31 March 2003; accepted 23 September 2003)

    Published Online: 2004

    CODEN: JAIOAD

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    Abstract

    Controlled low-strength materials (CLSM) were made in the field using one source of wood fly ash as a major component. CLSM Mixtures S-1 and S-3 contained cement, wood fly ash (81 and 89%, respectively, by mass of cementitious materials [Cm]), and sand; whereas, Mixture S-2 contained cement, wood fly ash (11% of Cm), Class C coal fly ash (67% of Cm), and sand. Mixtures S-1, S-2, and S-3 showed respective compressive strength values of 0.8, 0.3, and 0.6 MPa at 28 d, and 1.4, 14.4, and 1.0 MPa at one year. Combination of wood and coal fly ashes might have caused the drastic increase in the strength of Mixture S-2 at late ages. The respective water permeability values of Mixtures S-2 and S-3 decreased from 68 and 33 μm/s at 63 d to 6 and 12 μm/s at 227 d due to the improvement of microstructure of these CLSM mixtures.


    Author Information:

    Naik, TR
    Director, Assistant Director, Research Associate, Postdoctoral Fellow, University of Wisconsin-Milwaukee, Milwaukee, WI

    Kraus, RN
    Director, Assistant Director, Research Associate, Postdoctoral Fellow, University of Wisconsin-Milwaukee, Milwaukee, WI

    Siddique, R
    Director, Assistant Director, Research Associate, Postdoctoral Fellow, University of Wisconsin-Milwaukee, Milwaukee, WI

    Chun, Y-M
    Director, Assistant Director, Research Associate, Postdoctoral Fellow, University of Wisconsin-Milwaukee, Milwaukee, WI


    Stock #: JAI11871

    ISSN: 1546-962X

    DOI: 10.1520/JAI11871

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    Author
    Title Properties of Controlled Low-Strength Materials Made with Wood Fly Ash
    Symposium Innovations in Controlled Low-Strength Material (Flowable Fill), 2003-06-10
    Committee D18