KCI Concrete Journal

Korea Concrete Institute (한국콘크리트학회)
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Size Effect on Axial Compressive Strength of Notched Concrete Specimens

  • Yi, Seong-Tae (Civil Engineering Department, Korea Power Engineering Company Inc.(KOPEC)) ;
  • Kim, Jin-Keun (Department of Civil and Environmental Engineering, KAIST)
  • Published : 2002.03.01
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Abstract

In this study, size effect tests were conducted on axial compressive strength of concrete members. An experiment of Mode I failure, which is one of two representative compressive failure modes, was carried out by using dimensionally proportional cylindrical specimens (CS). An adequate notch length was taken from the experimental results obtained from the compressive strength experiment of various initial notch lengths. Utilizing the notch length, specimen sizes were then varied. In addition, new parameters for the modified size effect law (MSEL) were suggested using Levenberg-Marquardt's least square method (LSM). The test results show that size effect was apparent for axial compressive strength of cracked specimens. Namely, the effect of initial notch length on axial compressive strength size effect was apparent.

Keywords

References

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