Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Experimental observation of factors influencing impact test of concrete compressive material properties

    Access Status
    Fulltext not available
    Authors
    Hao, Y.
    Hao, Hong
    Date
    2013
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Hao, Y. and Hao, H. 2013. Experimental observation of factors influencing impact test of concrete compressive material properties, in Proceedings of the 10th International Conference on Shock & Impact Loads on Structures, pp. 333-342. Singapore: CI-Premier.
    Source Title
    10th International Conference on Shock and Impact Loads on Structures 2013
    ISBN
    9789810760694
    School
    Department of Civil Engineering
    URI
    http://hdl.handle.net/20.500.11937/24657
    Collection
    • Curtin Research Publications
    Abstract

    Significant scatterings of dynamic strength of concrete materials are observed from different tests. Sources of causing such scatterings, among other factors, include the contributions of lateral inertia, friction confinement and coarse aggregates to dynamic strength increment. Most previous studies investigating these factors are based primarily on numerical simulations. Due to different numerical models adopted, inconsistent and sometimes contradicting conclusions are made. In the present study, systematic experimental tests are conducted to investigate the effects of lateral inertia and end friction confinements, and aggregate size and percentage on high-rate strengths of concrete material and to validate the proposed formulae in previous numerical studies. For direct assessment of a particular influencing factor, proper designs of the material mixtures, the specimen dimensions, and the boundary conditions have been considered in preparing the specimens. The dependency of the DIF (dynamic increase factor) of the tested specimens on the concerned factors is discussed. The findings from the previous numerical studies that lateral inertia confinement effect is dependent on the specimen diameter and strain rate are confirmed by the test results. The influences of aggregate size and volume on DIF are considerable, and cannot be neglected in experimental or numerical studies. It is also confirmed that the end friction confinement effect is sensitive to the strain rate and specimen geometry. The proposed formulae for correcting the DIF relations in previous studies are verified by the experimental data in this study.

    Related items

    Showing items related by title, author, creator and subject.

    • Influence of end friction confinement on impact tests of concrete material at high strain rate
      Hao, Yifei; Hao, Hong; Li, Z. (2013)
      The compressive strength of concrete material increases with the strain rate. The dynamic compressive strength of concrete material is usually obtained by conducting laboratory tests such as split Hopkinson pressure bar ...
    • Numerical Evaluation of the Influence of Aggregates on Concrete Compressive Strength at High Strain Rate
      Hao, Y.; Hao, Hong (2011)
      The dynamic strength of concrete materials is usually obtained by conducting laboratory tests such as drop-weight test or split Hopkinson pressure bar (SHPB) test. It is widely accepted that the uniaxial compressive ...
    • Numerical investigation of the dynamic compressive behaviour of rock materials at high strain rate
      Hao, Yifei; Hao, Hong (2013)
      The dynamic compressive strength of rock materials increases with the strain rate. They are usually obtained by conducting laboratory tests such as split Hopkinson pressure bar (SHPB) test or drop-weight test. It is ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.