Volume 42, Issue 1 (January 2014)

    Particle Breakage of Cement Ellipsoid Aggregate—Part I: Triaxial Compression Tests

    (Received 17 September 2012; accepted 19 June 2013)

    Published Online: 2013

    CODEN: JTEOAD

      Format Pages Price  
    PDF 12 $25   ADD TO CART


    Abstract

    Cement ellipsoid aggregate was adopted to simulate rockfill materials in laboratory tests. The specimen was prepared by mixing cement ellipsoids of four diameters in a particular ratio. Triaxial compression tests and isotropic compression tests were then conducted to investigate the macroscopic stress–strain relationship of the aggregate, and the crushing characteristics of the cement ellipsoids. The particle size distributions were analyzed after testing. No particle breakage occurred during the isotropic compression tests or the unloading–reloading process of the triaxial compression tests; this implied that breakage of the cement ellipsoids mainly occurs during the shearing process of loading. Sieving analysis showed that the sizes of the larger particles did not change much; crushing mainly produced small particles and, thus, changed the particle size distribution.


    Author Information:

    Zhang, Bing-yin
    State Key Laboratory of Hydroscience and Engineering, Tsinghua Univ., Beijing,

    Jie, Yu-xin
    State Key Laboratory of Hydroscience and Engineering, Tsinghua Univ., Beijing,

    Kong, De-zhi
    State Key Laboratory of Hydroscience and Engineering, Tsinghua Univ., Beijing,


    Stock #: JTE20120283

    ISSN: 0090-3973

    DOI: 10.1520/JTE20120283

    ASTM International is a member of CrossRef.

    Author
    Title Particle Breakage of Cement Ellipsoid Aggregate—Part I: Triaxial Compression Tests
    Symposium , 0000-00-00
    Committee D18