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Lookup NU author(s): Dr Colin Davie
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).
© 2018 Elsevier Ltd. There is a significant need to understand, analyse and assess moisture transport in cementitious materials exposed to elevated temperatures in order to confidently predict the behaviour and ultimately the development of damage in safety critical applications such as nuclear reactor vessels, structures exposed to fire and well bore grouts.In view of this need a rigorous and robust formulation to describe water retention curves (sorption isotherms) as a function of temperature based on the evolution of physical parameters is presented. The model formulation is successfully validated against independent sets of experimental data up to temperatures of 80 °C. It is then further validated under isothermal drying conditions and then high temperature conditions through the numerical reproduction of laboratory experiments following implementation in a fully coupled hygro-thermo-mechanical finite element model.The new formulation is found to work well under a variety of conditions in a variety of cementitious material types.
Author(s): Davie CT, Pearce CJ, Kukla K, Bićanić N
Publication type: Article
Publication status: Published
Journal: Cement and Concrete Research
Print publication date: 01/04/2018
Online publication date: 19/01/2018
Acceptance date: 11/01/2018
Date deposited: 16/03/2018
ISSN (print): 0008-8846
ISSN (electronic): 1873-3948
Publisher: Elsevier Ltd
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