Statistical Analysis of Dynamic Splitting Tensile Strength of Concrete Using Different Types of Jaws
Publication: Journal of Materials in Civil Engineering
Volume 28, Issue 11
Abstract
The indirect Brazilian test is widely used in engineering practice to indirectly determine the tensile strength of concrete. The Brazilian test (splitting tension test) is performed by applying a concentrated compressive load across the diameter of a disc-specimen. A series of dynamic Brazilian disc tests for concrete specimens were conducted using the split Hopkinson pressure bar (SHPB) technique. The objective of this paper is to investigate the standard Brazilian test by comparing the results obtained using the test with those obtained using a loaded arc, together with a comparison of the experimental results and the statistical analysis. The effect of loading angle on the dynamic splitting tensile strength was studied by one-way analysis of variance. By using linear regression method, the Weibull statistical model was introduced to obtain the relationship between the loading angle and dynamic splitting tensile strength of concrete. It was concluded that dynamic tensile strength of concrete is strongly dependent on the type of jaws. A general increase in failure load was obtained with an increasing angle of loading arc for all specimens tested. With an increase of loading angle, the Weibull parameters increase. The Weibull statistical model can describe the distribution law of the dynamic tensile strength of concrete.
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Acknowledgments
This research is based upon work support supported by the National Natural Science Foundation of China (Grant No. 51509078), Natural Science Foundation of Jiangsu Province (Grant No. BK20150820), and Fundamental Research Funds for the Central Universities granted to the first author. The authors would like to express their great gratitude to the reviewers and editors for their helpful comments.
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Published In
Journal of Materials in Civil Engineering
Volume 28 • Issue 11 • November 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Apr 23, 2015
Accepted: Mar 1, 2016
Published online: May 24, 2016
Discussion open until: Oct 24, 2016
Published in print: Nov 1, 2016
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