Bentonite is generally used as buffer or backfill material in geological repositories and its mechanical behavior is important to affect surrounding structures. In this paper, cyclic shrinkage-swelling tests are performed on Heishan bentonite taking into account the effect of initial moisture content. Results reveal that the shrinkage-swelling behavior of Heishan bentonite relies on initial moisture content and an obvious water retention property is obtainedwith the increases of initial moisture content. To investigate the accurate determination of aforementioned behavior of studied bentonite during drying and wetting cycle, the captured image of digital camera and the binary image processing technique are employed in this study. A simplified analytical model is proposed to simulate the shrinkage-swelling behavior at different initial moisture contents and the model parameters are calibrated by experimental results of Heishan bentonite. Based on the model performance, the model simulation agrees well with the tests and the proposed approach is able to predict the behavior of Heishan bentonite.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Impact of Initial Moisture Content on the Shrinkage-Swelling Behavior of Heishan Bentonite


    Additional title:

    KSCE J Civ Eng


    Contributors:
    Zhang, Shu-Cui (author) / Li, Kai (author) / Sun, Ke-Ming (author) / Wang, Shuo (author)

    Published in:

    Publication date :

    2022-02-01


    Size :

    6 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Influence of building stiffness and foundation embedding on clays shrinkage-swelling hazard consequences

    Jahangir, Emad / Deck, O. / Masrouri, F. | HENRY – Federal Waterways Engineering and Research Institute (BAW) | 2011

    Free access


    Remote moisture-content balance

    Blomseth, R. A. / Lum, H., Jr. / Matsumoto, Y. | NTRS | 1977



    Influence of Production Temperature and Aggregate Moisture Content on the Initial Performance of Warm-Mix Asphalt

    Bennert, Thomas / Maher, Ali / Sauber, Robert | Transportation Research Record | 2011