Various size effects in fracture of concrete |
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| Affiliation: | 1. College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi 712100, China;2. Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China;1. Computational Continuum Mechanics Group, Department of Civil Engineering, University of Cape Town, Cape Town, South Africa;2. Centre for Research in Computational and Applied Mechanics, University of Cape Town, Cape Town, South Africa;3. Faculty of Engineering, The University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom |
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| Abstract: | The paper reports the results of a series of three-point bend test on pre-cracked cement mortar and concrete beams. The tests are performed with a view to studying the influence of pre-crack, aggregate and specimen sizes on the fracture of concrete. A simple formula based on the experimental data is proposed to account for all the three size dependent effects. Other parameters having a significant influence on the fracture of concrete are also pointed out. |
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