| 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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Aboulela, Amr
Imerys (France)
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2022The fate of tetrathionate during the development of a biofilm in biogenic sulfuric acid attack on different cementitious materialscitations
- 2022Study of the resistance to biodeterioration of innovative low-carbon cementitious materials for application in sewer networks ; Étude de la résistance à la biodétérioration de matériaux cimentaires innovants et bas carbone pour une application dans les réseaux d'assainissement
- 2022Study of the resistance to biodeterioration of innovative low-carbon cementitious materials for application in sewer networks
- 2021Laboratory Test to Evaluate the Resistance of Cementitious Materials to Biodeterioration in Sewer Network Conditionscitations
- 2021Laboratory test to evaluate the resistance of cementitious materials to biodeterioration in sewer network conditionscitations
- 2018Evaluation of the resistance of CAC and BFSC mortars to biodegradation: laboratory test approachcitations
- 2018Evaluation of the resistance of CAC and BFSC mortars to biodegradation: laboratory test approachcitations
Places of action
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article
Evaluation of the resistance of CAC and BFSC mortars to biodegradation: laboratory test approach
Abstract
Biodeterioration of cementitious materials in sewer networks is a major concern for health and economic reasons. Essentially, it is due to the biological oxidation of H2S into H2SO4 leading to a local progressive dissolution of the cementitious matrix and the precipitation of expansive products likely to provoke cracks. However, it is widely known that CAC has a better performance in such environments but the mechanisms are not very well understood. Nevertheless, previous studies focused mainly on measuring the mass loss of the specimens accompanied with little information on the chemical alteration of the cementitious matrix. This study aims to compare the performance of CAC and BFSC mortars in sewer conditions using laboratory test (BAC-test). Leaching kinetics were evaluated by concentrations measurements of cementitious cations in the leached solutions and of sulphate production by the microorganisms. Moreover, SEM observations coupled with EDS analyses allowed the identification of the chemical alteration of the cementitious matrix.