Comparative study of fracture mechanical test methods for concrete

Lennart Østergaard, John Forbes Olesen

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Abstract

This paper describes and compares three different fracture mechanical test methods; the uniaxial tension test (UTT), the three point bending test (TPBT) and the wedge splitting test (WST). Potentials and problems with the test methods will be described with regard to the experiment and the interpretation, i.e. the analysis needed to extract the stress-crack opening relationship, the fracture energy etc. Experiments are carried out with each test configuration using mature, high performance concrete. The results show that the UTT is a highly complicated test, which only under very well controlled circumstances will yield the true fracture mechanical properties. It is also shown that both the three point bending test and the WST are well-suited substitutes for the uniaxial tension test.
Original languageEnglish
Title of host publicationFracture Mechanics of Concrete Structures
EditorsVictor Li
Volume1
Place of PublicationUSA
PublisherIA-FraMCoS
Publication date2004
Edition1
Pages455-462
ISBN (Print)08-70-31135-2
Publication statusPublished - 2004

Cite this

Østergaard, L., & Olesen, J. F. (2004). Comparative study of fracture mechanical test methods for concrete. In V. Li (Ed.), Fracture Mechanics of Concrete Structures (1 ed., Vol. 1, pp. 455-462). IA-FraMCoS.