In vitro and in situ tests to evaluate the bacterial colonization of cementitious materials in the marine environment - IMT Mines Alès Accéder directement au contenu
Article Dans Une Revue Cement and Concrete Composites Année : 2020

In vitro and in situ tests to evaluate the bacterial colonization of cementitious materials in the marine environment

Résumé

Civil engineers have a responsibility to take measures to protect marine biodiversity by selecting more bioreceptive construction materials in the design of marine infrastructure, for better biodiversity conservation. In this study, it was shown that pre-carbonation of cementitious materials accelerates their bacterial colorization by lowering the pH of their surface. It has been shown both in the laboratory and in-situ tests that the bacterial colonization of cementitious materials is influenced by the pH and the type of cement. By comparing the bacterial colonization of Portland cement mortars, CEM I, and slag cement, CEM III, mortars, it was found that the CEM III mortars are more bioreceptive than the CEM I mortars. This study presented and verified a novel experimental laboratory approach which can be used to evaluate the bacterial colonization (bioreceptivity) of cementitious materials in marine environment. The approach could be taken up in future recommendations to enable engineers to eco-design more eco-friendly marine infrastructure and develop green-engineering projects.
Fichier principal
Vignette du fichier
Hayek_al_CCC_2020.pdf (2.23 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02913606 , version 1 (01-09-2020)

Identifiants

Citer

Mahmoud Hayek, Marie Salgues, Frédéric Habouzit, Sandrine Bayle, Jean-Claude Souche, et al.. In vitro and in situ tests to evaluate the bacterial colonization of cementitious materials in the marine environment. Cement and Concrete Composites, 2020, 113, ⟨10.1016/j.cemconcomp.2020.103748⟩. ⟨hal-02913606⟩
1471 Consultations
367 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More