An in-situ and laboratory study of the ...
Document type :
Communication dans un congrès avec actes
Title :
An in-situ and laboratory study of the effect of the intrinsic properties of mortars on their potential bioreceptivity
Author(s) :
Tran, Thu Hien [Auteur correspondant]
Laboratoire de Génie civil et Géo-environnement [LGCgE]
Ecole nationale supérieure Mines-Télécom Lille Douai [IMT Nord Europe]
Laboratoire Georges Friedel [LGF-ENSMSE]
Département PROcédés Poudres, Interfaces, Cristallisation et Ecoulements [PROPICE-ENSMSE]
Centre Sciences des Processus Industriels et Naturels [SPIN-ENSMSE]
University of Science and Technology [Danang] [DUT]
Duy Tan University [DTU]
Govin, Alexandre [Auteur]
Laboratoire Georges Friedel [LGF-ENSMSE]
Département PROcédés Poudres, Interfaces, Cristallisation et Ecoulements [PROPICE-ENSMSE]
Centre Sciences des Processus Industriels et Naturels [SPIN-ENSMSE]
Guyonnet, René [Auteur]
Laboratoire Georges Friedel [LGF-ENSMSE]
Département PROcédés Poudres, Interfaces, Cristallisation et Ecoulements [PROPICE-ENSMSE]
Centre Sciences des Processus Industriels et Naturels [SPIN-ENSMSE]
Grosseau, Philippe [Auteur]
Laboratoire Georges Friedel [LGF-ENSMSE]
Département PROcédés Poudres, Interfaces, Cristallisation et Ecoulements [PROPICE-ENSMSE]
Centre Sciences des Processus Industriels et Naturels [SPIN-ENSMSE]
Lors, Christine [Auteur]
Laboratoire de Génie civil et Géo-environnement [LGCgE]
Ecole nationale supérieure Mines-Télécom Lille Douai [IMT Nord Europe]
Damidot, Denis [Auteur]
Laboratoire de Génie civil et Géo-environnement [LGCgE]
Ecole nationale supérieure Mines-Télécom Lille Douai [IMT Nord Europe]
Deves, O. [Auteur]
Centre Scientifique et Technique du Bâtiment [CSTB]
Ruot, Bernard [Auteur]
Centre Scientifique et Technique du Bâtiment [CSTB]
Laboratoire de Génie civil et Géo-environnement [LGCgE]
Ecole nationale supérieure Mines-Télécom Lille Douai [IMT Nord Europe]
Laboratoire Georges Friedel [LGF-ENSMSE]
Département PROcédés Poudres, Interfaces, Cristallisation et Ecoulements [PROPICE-ENSMSE]
Centre Sciences des Processus Industriels et Naturels [SPIN-ENSMSE]
University of Science and Technology [Danang] [DUT]
Duy Tan University [DTU]
Govin, Alexandre [Auteur]
Laboratoire Georges Friedel [LGF-ENSMSE]
Département PROcédés Poudres, Interfaces, Cristallisation et Ecoulements [PROPICE-ENSMSE]
Centre Sciences des Processus Industriels et Naturels [SPIN-ENSMSE]
Guyonnet, René [Auteur]
Laboratoire Georges Friedel [LGF-ENSMSE]
Département PROcédés Poudres, Interfaces, Cristallisation et Ecoulements [PROPICE-ENSMSE]
Centre Sciences des Processus Industriels et Naturels [SPIN-ENSMSE]
Grosseau, Philippe [Auteur]
Laboratoire Georges Friedel [LGF-ENSMSE]
Département PROcédés Poudres, Interfaces, Cristallisation et Ecoulements [PROPICE-ENSMSE]
Centre Sciences des Processus Industriels et Naturels [SPIN-ENSMSE]
Lors, Christine [Auteur]

Laboratoire de Génie civil et Géo-environnement [LGCgE]
Ecole nationale supérieure Mines-Télécom Lille Douai [IMT Nord Europe]
Damidot, Denis [Auteur]
Laboratoire de Génie civil et Géo-environnement [LGCgE]
Ecole nationale supérieure Mines-Télécom Lille Douai [IMT Nord Europe]
Deves, O. [Auteur]
Centre Scientifique et Technique du Bâtiment [CSTB]
Ruot, Bernard [Auteur]
Centre Scientifique et Technique du Bâtiment [CSTB]
Scientific editor(s) :
Marco Quattrone
Vanderley Moacyr John
Vanderley Moacyr John
Conference title :
XIII International Conference on Durability of Building Materials and Components
Conference organizers(s) :
Escola Politecnica, Universiy of São Paulo
São Paulo State Housing Syndicate
São Paulo State Housing Syndicate
City :
São Paulo
Country :
Portugal
Start date of the conference :
2014-09-02
Book title :
Proceedings draft XIII DBMC - XIII International Conference on Durability of building Materials and Components
English keyword(s) :
biofouling
mortar
intrinsic properties
laboratory tests
in-situ tests
mortar
intrinsic properties
laboratory tests
in-situ tests
HAL domain(s) :
Sciences de l'ingénieur [physics]/Génie des procédés
English abstract : [en]
This study aims to clarify the effect of mortar intrinsic properties (porosity, roughness and carbonation level) on its ability to biofouling. Two scales experimental tests, an accelerated fouling in laboratory and a natural ...
Show more >This study aims to clarify the effect of mortar intrinsic properties (porosity, roughness and carbonation level) on its ability to biofouling. Two scales experimental tests, an accelerated fouling in laboratory and a natural fouling in the real-world, were set-up. The first one was conducted in a closed device allowing a periodic sprinkling of an algal suspension on the samples surface. The outdoor test samples were exposed in a park at Grenoble (France). The colonization rate of the sample surface was evaluated by image analysis. The results show that the impact of each intrinsic parameter is quite different as function of the test. The porosity has no influence on the algal colonization of the samples exposed in indoor whereas a high porosity seems to increase slightly the bioreceptivity of ones exposed outdoor. The roughness, in both tests, promoted the microorganisms attachment and so their colonization. However, the discrimination of roughness grades is higher in the laboratory test than in the in-situ one. The surface pH significantly influences on the accelerated biofouling but not on the in-situ one. These dissimilarities result from the difference in experimental configurations of the two tests. Thus the laboratory test should be adjusted to be more suitable and to allow an extrapolation of results.Show less >
Show more >This study aims to clarify the effect of mortar intrinsic properties (porosity, roughness and carbonation level) on its ability to biofouling. Two scales experimental tests, an accelerated fouling in laboratory and a natural fouling in the real-world, were set-up. The first one was conducted in a closed device allowing a periodic sprinkling of an algal suspension on the samples surface. The outdoor test samples were exposed in a park at Grenoble (France). The colonization rate of the sample surface was evaluated by image analysis. The results show that the impact of each intrinsic parameter is quite different as function of the test. The porosity has no influence on the algal colonization of the samples exposed in indoor whereas a high porosity seems to increase slightly the bioreceptivity of ones exposed outdoor. The roughness, in both tests, promoted the microorganisms attachment and so their colonization. However, the discrimination of roughness grades is higher in the laboratory test than in the in-situ one. The surface pH significantly influences on the accelerated biofouling but not on the in-situ one. These dissimilarities result from the difference in experimental configurations of the two tests. Thus the laboratory test should be adjusted to be more suitable and to allow an extrapolation of results.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Source :
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