Modelling of the evolving contributions of gas transport, cracks and chemical kinetics during atmospheric carbonation of hydrated C3S and CSH pastes

N Seigneur, L De Windt, S Poyet, A Socié… - Cement and Concrete …, 2022 - Elsevier
This modelling study investigated the physicochemical and kinetic controls of the
mineralogical evolutions of cementitious materials subject to accelerated atmospheric …

Investigating chemical and cracking processes in cement paste exposed to a low external sulfate attack with emphasis on the contribution of gypsum

J Pouya, M Neji, L De Windt, F Péralès, A Socié… - … and Building Materials, 2024 - Elsevier
Durability of concrete exposed to an external sulfate attack is a great concern for the long-
term reliability of nuclear waste containment. This paper presents experimental results …

Anthropogenic organic pollutants in groundwater increase releases of Fe and Mn from aquifer sediments: Impacts of pollution degree, mineral content, and pH

Y Zhai, Y Han, X Xia, X Li, H Lu, Y Teng, J Wang - Water, 2021 - mdpi.com
In many aquifers around the world, there exists the issue of abnormal concentrations of Fe
and Mn in groundwater. Although it has been recognized that the main source of this issue is …

Simulation of internal and external sulfate attacks of concrete with a generic reactive transport-poromechanical model

A Socié, F Dubois, Y Monerie, M Neji… - European Journal of …, 2023 - Taylor & Francis
Chemical reactions can lead to the expansion of the geomaterial because of the strong
precipitation of minerals in the pores of the medium. The quantity and the variability of these …

Simulation of reactive transport in fractured porous media

SI Banshoya, I Berre, E Keilegavlen - Transport in Porous Media, 2023 - Springer
Numerical simulations of reactive transport in fractured porous media require the solution of
coupled physical and chemical processes that depend on the fractures. Such coupled …

A compositional global implicit approach for modeling coupled multicomponent reactive transport

N Seigneur, A Socié, KU Mayer - Water Resources Research, 2023 - Wiley Online Library
Reactive transport modeling has become widely used to help improve understanding of
hydrogeochemical processes from the pore scale to the watershed scale. In recent years …

[HTML][HTML] 'Onion-peel'cracking and spalling in coupled meso-mechanical analysis of External Sulfate Attack in concrete using zero-thickness interface elements

C Biscaro, A Martínez, A Pérez, G Xotta… - … and Building Materials, 2024 - Elsevier
Abstract External Sulfate Attack (ESA) is a chemical degradation process that may affect
concrete structures exposed to sulfate-rich environments. The ingress of sulfate ions causes …

A fully coupled Hydraulic Mechanical Chemical approach applied to cementitious material damage due to carbonation

A Socié, N Seigneur, B Bary, S Poyet… - npj Materials …, 2023 - nature.com
Abstract Coupled Thermal-Hydraulic-Mechanical-Chemical (THMC) approaches may be
important for assessing the long-term durability of cementitious materials. We present a …

[PDF][PDF] Effects of the microstructural uncertainties on the poroelastic and the diffusive properties of mortar

A Socié, Y Monerie, F Péralès - Journal of Theoretical …, 2022 - jtcam.episciences.org
The assessment of the durability of civil engineering structures subjected to several
chemical attacks requires the development of chemo-poromechanical models. The …

Numerical and experimental investigation of mixed-mode fracture of cement paste and interface under three-point bending test

S Al Dandachli, F Péralès, Y Monerie… - NoMaD 2022-4e …, 2022 - hal.science
This paper shows 2D simulations of crack propagation in mode I and mixed mode (I and II)
in a cementitious material at the material scale (known as local scale). There are two types …