SIZE EFFECT OF CONCRETE AND SANDSTONE

This paper describes research in which a series of uniaxial tension experiments was conducted to investigate the size effect on strength and fracture energy of concrete and sandstone. The experiments were carried out on specimens of 6 different sizes in a scale range of 1:32. Depending on the material and the curing conditions, a stronger or weaker size effect on the nominal strength occurred in the tests. The observed size effect was attributed to a combination of statistical size effect and strain gradients in the cross section of the specimens, which were caused by the specimen shape, load eccentricity, and material inhomogeneity. The fracture energy was, irrespective of the type of material, found to increase with size going toward a horizontal asymptote for large sizes.

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  • Corporate Authors:

    Delft University of Technology

    Faculty of Civil Engineering, Stevin Laboratory, P.O. Box 5048
    2600 GA Delft,   Netherlands 
  • Authors:
    • van Vliet, MRA
    • van Mier, JGM
  • Publication Date: 2000

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 91-108
  • Serial:
    • Heron
    • Volume: 45
    • Issue Number: 2
    • Publisher: Delft University of Technology
    • ISSN: 0046-7316

Subject/Index Terms

Filing Info

  • Accession Number: 00797639
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 15 2001 12:00AM