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Comprehension of demoulding mechanisms at the formwork/oil/concrete interface

Djelal, Chafika and De Caro, Pascale and Libessart, Laurent and Dubois, Isabelle and Pébère, Nadine Comprehension of demoulding mechanisms at the formwork/oil/concrete interface. (2008) Materials and Structures, vol. 41 (n° 3). pp. 571-581. ISSN 1359-5997

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Official URL: http://dx.doi.org/10.1617/s11527-007-9268-3

Abstract

The implementation of concrete and its association with a release agent influence the aesthetics of the concrete facings. The mineral oils tend to be replaced by vegetable formulations, to reduce the impact of the substances spilled in the environment. From a technical point of view, it is important to characterize the action of these new formulations at the interface concrete/oil/formwork. Two performing techniques have been used to study the physicochemical processes, the tribometry and electrochemical impedance spectroscopy. The correlation of the results obtained allowed to improve the understanding of the mechanisms involved at the interface mould/oil, in connection with the use of an acidifier in the formulation.

Item Type:Article
Additional Information:Thanks to Springer Verlag editor. The definitive version is available at http://www.springerlink.com The original PDF of the article can be found at Materials and Structures website : http://www.springerlink.com/content/174213742222617h/
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Institut National de la Recherche Agronomique - INRA
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > Université d'Artois - UA (FRANCE)
Laboratory name:
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Deposited By: Celine Cabaup
Deposited On:16 Apr 2009 07:19

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