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Theses

Etude de l'atténuation des efflorescences sur les matériaux cimentaires au moyen de produits pouzzolaniques

Abstract : Formation of efflorescence on cimentitous materials is a natural phenomenon. It is a white superficial deposit of salt of calcium carbonate on the surface of the material, which occurs under specific climatic conditions. This phenomenon leads mainly to an aesthetic deterioration of cementitous constructions, which can nevertheless become an important economic problem because of customers' complaints.
The aim of the study is to better understand the phenomenon, in order to avoid it. To do so, a procedure was performed to produce primary efflorescence in laboratory conditions, and was associated with a method of quantification of efflorescence formation.
The reduction of the formation of efflorescence by replacement of a part of cement with pozzolanic products was studied. The use of very different products allowed the identifying, through multiple characterizations, of the properties of these pozzolans which allow them to ease most effectively the formation of efflorescence.
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https://tel.archives-ouvertes.fr/tel-00348870
Contributor : Andrée-Aimée Toucas <>
Submitted on : Monday, December 22, 2008 - 3:13:57 PM
Last modification on : Wednesday, June 24, 2020 - 4:18:31 PM
Long-term archiving on: : Tuesday, June 8, 2010 - 4:36:04 PM

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  • HAL Id : tel-00348870, version 1

Citation

Stéphanie Delair. Etude de l'atténuation des efflorescences sur les matériaux cimentaires au moyen de produits pouzzolaniques. Sciences de l'ingénieur [physics]. Ecole Nationale Supérieure des Mines de Saint-Etienne, 2008. Français. ⟨tel-00348870⟩

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