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A novel indirect tensile test method to measure the biaxial tensile strength of concretes and other quasibrittle materials

Authors
Zi, GoangseupOh, HongseobPark, Sun-Kyu
Issue Date
Jun-2008
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Keywords
indirect test; tensile strength; biaxial strength; concrete; quasibrittle materials
Citation
CEMENT AND CONCRETE RESEARCH, v.38, no.6, pp.751 - 756
Indexed
SCIE
SCOPUS
Journal Title
CEMENT AND CONCRETE RESEARCH
Volume
38
Number
6
Start Page
751
End Page
756
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/123498
DOI
10.1016/j.cemconres.2008.02.002
ISSN
0008-8846
Abstract
A novel indirect tensile test method, the biaxial flexure test (BFT) method, has been developed to measure the biaxial tensile strength of concretes. The classical modulus of rupture (MOR) test has been generalized to three dimensions. In this method, we use a circular plate as the new test specimen. This plate is supported by an annular ring. We apply an external load to this specimen through a circular edge. The centers of the specimen, the loading device and the support are identical. The biaxial tensile strength measured by this new method is about 19% greater than the uniaxial tensile strength obtained from the classical modulus of rupture test as reported by other researchers. However, at the same time, we also found that the stochastic deviation of the biaxial tensile strength is about 63% greater than the uniaxial strength. (C) 2008 Elsevier Ltd. All rights reserved.
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