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ARTICLE
Experimental Study of Thermal-Hydraulic-Mechanical Coupling Behavior of High-Performance Concrete
Wei Chen1,*, Wenhao Zhao1, Yue Liang1, Frederic Skoczylas2
1
School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan, 430068, China
2 CNRS, Centrale Lille, UMR9013-LaMcube-Laboratoire de Mécanique Multiphysique et Multiéchelle, Université de Lille, Lille, F-59000,
France
* Corresponding Author: Wei Chen. Email:
(This article belongs to this Special Issue: Advances in Solid Waste Processing and Recycling Technologies for Civil Engineering Materials)
Fluid Dynamics & Materials Processing 2023, 19(9), 2417-2430. https://doi.org/10.32604/fdmp.2023.030028
Received 19 March 2023; Accepted 18 April 2023; Issue published 16 May 2023
Abstract
The design of an underground nuclear waste disposal requires a full characterization of concrete under various
thermo-hydro-mechanical-chemical conditions. This experimental work studied the characterization of coupled
thermo-hydro-mechanical effects using concretes made with cement CEM I or CEM V/A (according to European
norms). Uniaxial and triaxial compression under 5 MPa confining pressure tests were performed under three different temperatures (T = 20°C, 50°C, and 80°C). The two concretes were dried under relative humidity (RH) to
obtain a partially saturated state of approximately 70%. The results showed that the effects of water saturation and
confining pressure are more important than that of temperature. Drying in high RH at different target temperatures led to an increase in uniaxial and triaxial strength but drying at 105°C had a negative effect on the strength
and Young‘s modulus. Oven drying caused microcracking in the concrete. The microcracks deeply influenced the
thermal damage to the material, affecting its mechanical behavior. The triaxial strength clearly increased due to
the presence of confining pressure. Moreover, an important influence of cement type was observed on the
mechanical properties; the concrete based on CEM V/A had a greater porosity than CEM I, and a finer pore structure appeared due to the presence of mineral admixtures.
Keywords
Cite This Article
Chen, W., Zhao, W., Liang, Y., Skoczylas, F. (2023). Experimental Study of Thermal-Hydraulic-Mechanical Coupling Behavior of High-Performance Concrete.
FDMP-Fluid Dynamics & Materials Processing, 19(9), 2417–2430.