| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Dangla, Patrick
Université Gustave Eiffel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2022Modeling the sulfate attack induced expansion of cementitious materials based on interface-controlled crystal growth mechanismscitations
- 2022Modeling the sulfate attack induced expansion of cementitious materials based on interface-controlled crystal growth mechanismscitations
- 2020Locating ettringite due to DEF at the pore scale of cement paste by heat-based dissolution testscitations
- 2019Pore size analyses of cement paste exposed to external sulfate attack and delayed ettringite formationcitations
- 2018Modelling of the sulfuric acid attack on different types of cementitious materialscitations
- 2018Modelling of the sulfuric acid attack on different types of cementitious materialscitations
- 2017Poromechanics VI: Proceedings of the Sixth Biot Conference on Poromechanics
- 2017Impact of cement composition on the adsorption of hydrogen sulphide and its subsequent oxidation onto cementitious material surfacescitations
- 2017Impact of cement composition on the adsorption of hydrogen sulphide and its subsequent oxidation onto cementitious material surfacescitations
- 2016Accelerated Biodeterioration Test for the Study of Cementitious Materials in Sewer Networks: Experimental and Modelingcitations
- 2016Accelerated Biodeterioration Test for the Study of Cementitious Materials in Sewer Networks: Experimental and Modelingcitations
- 2016Abiotic interaction between hydrogen sulphide and cementitious materialscitations
- 2016Abiotic interaction between hydrogen sulphide and cementitious materialscitations
- 2014Investigation of the carbonation mechanism of {CH} and C-S-H in terms of kinetics, microstructure changes and moisture propertiescitations
- 2013Degradation modelling of concrete submitted to sulfuric acid attackcitations
Places of action
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article
Pore size analyses of cement paste exposed to external sulfate attack and delayed ettringite formation
Abstract
Experimental studies on cement paste exposed to external sulfate attack (ESA), delayed ettringite formation (DEF), and the coupling effect of both reactions are presented in this paper. The objective is to compare the degraded state of specimens, the length and mass variations, and the pore size distribution (PSD) obtained by mercury intrusion porosimetry (MIP) of cement paste submitted to these different exposure conditions. By comparing the PSD of specimens before and after the sulfate attacks, a global expansion mechanism is proposed : ettringite first precipitates in the biggest pores without inducing obvious expansion, and then penetrates into capillary and gel pores leading to an accelerated swelling. In addition, the coupling effect of ESA and DEF is found to be the most damaging expansion, which raises a high durability problem for cement-based materials.