Volume 39, Issue 5 (September 2011)

    Effect of Specimen Size on Static Strength and Dynamic Increase Factor of High-Strength Concrete from SHPB Test

    (Received 11 September 2010; accepted 14 March 2011)

    Published Online: 2011

    CODEN: JTEOAD

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    Abstract

    This paper presents an experimental study on effect of specimen size on the static strength and dynamic increase factor (DIF) of plain and fiber reinforced high-strength concrete determined from Split Hopkinson pressure bar (SHPB) tests. Four types of specimens were used to determine the static strength of the concrete including (i) cylinders with the same size as that used for SHPB test (diameter (D)=77 mm and length (L)/D ratio=0.5), (ii) cylinders with the same diameter as that of SHPB but with L/D=2, (iii) standard cylinders of D100×200-mm, and (iv) 100-mm cubes. Results indicate that cylinders with the same diameter as those of the SHPB but with L/D=2 are suitable for determining the static strength to be used in DIF computations based on the stress state and failure patterns.


    Author Information:

    Wang, Shasha
    Department of Civil Engineering, National University of Singapore,

    Zhang, Min-Hong
    Department of Civil Engineering, National University of Singapore,

    Quek, Ser Tong
    Department of Civil Engineering, National University of Singapore,


    Stock #: JTE103370

    ISSN: 0090-3973

    DOI: 10.1520/JTE103370

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    Author
    Title Effect of Specimen Size on Static Strength and Dynamic Increase Factor of High-Strength Concrete from SHPB Test
    Symposium , 0000-00-00
    Committee E28