Water Characteristic Curves of Recycled Materials

    Volume 34, Issue 1 (January 2011)

    ISSN: 0149-6115

    CODEN: GTJOAD

    Published Online: 30 September 2010

    Page Count: 8


    Rahardjo, H.
    School of Civil and Environmental Engineering, Nanyang Technological Univ., Singapore,

    Vilayvong, K.
    School of Civil and Environmental Engineering, Nanyang Technological Univ., Singapore,

    Leong, E. C.
    School of Civil and Environmental Engineering, Nanyang Technological Univ., Singapore,

    (Received 19 May 2010; accepted 3 September 2010)

    Abstract

    Water characteristic curves (WCCs) of recycled materials are not well researched. In this study, the WCCs of three specimens from recycled concrete aggregate, three specimens from reclaimed asphalt pavement, and one specimen from spent copper slag are studied. The objective of this study is to obtain WCCs of the recycled materials by using the Tempe cell pressure extractor for standard soil-water characteristic curve determination. Properties of drying WCC of the recycled materials were determined by using a best fit WCC equation. The results showed air-entry value of the recycled materials with high gravel content that occurred at low matric suction below 1.0 kPa and a steep WCC. The results from the WCC and saturated coefficient of permeability tests were incorporated into a statistical model to indirectly predict the permeability function of the recycled materials. The permeability functions of the recycled materials are also presented.


    Paper ID: GTJ103177

    DOI: 10.1520/GTJ103177

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    Author
    Title Water Characteristic Curves of Recycled Materials
    Symposium , 0000-00-00
    Committee D18