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The high and non-uniform distributed porosity of the interfacial transition zone affects the macroscopic properties and failure behavior of concrete significantly, and it relies on the non-uniform water-cement ratio and pore-permeation coupling effect during hydration. However, current hydration models could not reveal the above facts. In this paper, water-cement distribution is derived, pore-permeation coupling effect is introduced based on fractal theory. Finally, a hydration model of the interfacial transition zone is established. A good agreement between the porosity prediction of interfacial transition zone and experimental data is found.
PAPER REVISED: 2021-08-17
PAPER ACCEPTED: 2021-08-17
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THERMAL SCIENCE YEAR 2022, VOLUME 26, ISSUE Issue 3, PAGES [2787 - 2796]
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© 2023 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence