2C2MA - Centre des Matériaux des Mines d'Alès (École des Mines d'Alès / Centre des Matériaux des Mines d'Alès
6 Avenue de Clavières
30319 ALES cedex
Téléphone : +33 4 66 78 50 00
Par courrier électronique : c2ma@mines-ales.fr - France)
IMT - MINES ALES - IMT - MINES ALES (IMT - Mines Ales École des Mines
Site de Clavières : 6 avenue de Clavières, 30319 Alès Cedex
Site de Croupillac : Rue Jules Renard, 30100 Alès
Site de Pau : Hélioparc (bâtiment Einstein 1), 2 avenue du Président-Pierre-Angot, 64053 Pau Cedex 9 - France)
Abstract : Sea water leads to a zoned phase changes at the surface of concrete. The
surface is often covered with a crust consisting of brucite and calcite. Followed by a
leached zone poor in chlorine, sulphur, and calcium where one potentially can find
M-S-H. In the following zone one can find sulphur enrichment and the chlorine and
calcium content starts to increases. Deeper in the chlorine content reaches a maximum
and then gradually decreases again moving even deeper into the concrete. These changes
in the phase assemblage at a sea water exposed concrete surface seem to be independent
of the tested cement compositions (up to 30-50 % replacement with fly ash or slag).
Whether this also indicates a limited difference on biological growth on these surfaces
remains a question.
https://hal.mines-ales.fr/hal-02915328
Contributor : Administrateur Imt - Mines Alès <>
Submitted on : Friday, August 14, 2020 - 10:37:41 AM Last modification on : Tuesday, February 23, 2021 - 7:24:06 PM
Klaartje de Weerdt, Marie Salgues. Interaction between sea water and the surface of concrete – experiences from Norway. Interaction des ouvrages avec leur environnement. Le milieu maritime, p. 139-146, 2018, 978-2-35671-510-4. ⟨hal-02915328⟩