| 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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Ghabezloo, Siavash
École des Ponts ParisTech
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2023Effect of supercritical carbonation on porous structure and mechanical strength of cementitious materials modified with bacterial nanocellulosecitations
- 2020Transversely Isotropic Poroelastic Behaviour of the Callovo-Oxfordian Claystone: A Set of Stress-Dependent Parameterscitations
- 2020CO2 geological storage: Microstructure and mechanical behavior of cement modified with a biopolymer after carbonationcitations
- 2020Chemo-poro-elastoplastic modelling of an oilwell cement paste: Macroscopic shrinkage and stress-strain behaviourcitations
- 2020Thermo-Poro-Elastic Behaviour of a Transversely Isotropic Shale: Thermal Expansion and Pressurizationcitations
- 2017Poromechanics VI: Proceedings of the Sixth Biot Conference on Poromechanics
- 2017Phase field modeling of hydraulic fracturing with interfacial damage in highly heterogeneous fluid-saturated porous mediacitations
- 2017Phase field modeling of hydraulic fracture in heterogeneous media with interfacial damage
- 2015Experimental investigation of particle suspension injection and permeability impairment in porous mediacitations
- 2014Experimental evaluation of the fracture toughness on a limestone
- 2008Poromechanical behaviour of hardened cement paste under isotropic loadingcitations
Places of action
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article
CO2 geological storage: Microstructure and mechanical behavior of cement modified with a biopolymer after carbonation
Abstract
Large amounts of CO2 could be stored underground in deep rock reservoirs and could help reducing emissions into the environment. Carbon geo-storage technologies have several years in development and new techniques and materials are being studied to make this procedure more effective and less expensive. The risk of leakage from geological reservoirs to other rock formations or even towards the surface means that long-term behavior must be carefully studied. The carbonation of the cement used for sealing the wellbore may compromise the borehole integrity. In light of this problem, this work aims to analyze the poromechanical behavior of cement with and without a new additive in a CO2 environment. Bacterial nanocellulose is a biopolymer that modifies important cement properties such as compressive strength, thermal behavior and hydration degree. Two cement types were studied: class G cement and modified class G cement with bacterial nanocellulose. These samples were submitted to a supercritical CO2 environment (temperatures higher than 32 °C and pressures higher than 8 MPa) during 30 days. Mercury intrusion porosimetry and uniaxial compressive strength tests were performed on these samples to study the effect of carbonation. Both types of cement are affected after carbonation by reducing compressive strength and Young’s modulus (E), however, the strength of modified cement was reduced by 8%, while non-modified cement was reduced by 20%.