Reference : The evaluation of the surface free energy of liquids and solids in concrete technology
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/39918
The evaluation of the surface free energy of liquids and solids in concrete technology
English
Courard, Luc mailto [Université de Liège - ULg > Département Argenco : Secteur GeMMe > Matériaux de construction non métalliques du génie civil >]
Michel, Frédéric mailto [Université de Liège - ULg > Département Argenco : Secteur GeMMe > Matériaux de construction non métalliques du génie civil >]
Martin, Marie [Belgian Construction Certification Association > > > >]
2011
Construction & Building Materials
Elsevier Science
25
260-266
Yes (verified by ORBi)
International
0950-0618
Oxford
United Kingdom
[en] surface free energy ; demoulding oil ; formwork ; modifying viscosity agent ; superplasticizer
[en] This paper presents initial results from an extensive study on the calculation of the surface free energy of mineral materials. The usefulness of such evaluation is demonstrated through the technological operation of casting and moulding concrete. Surface interactions will firstly act on the dispersion of particles inside the concrete mix and the viscosity of the fresh material; the specific effect of superplasticizers and Modifying Viscosity Agent is presented through the determination of surface free energy properties. The second analysis is dealing with the interactions between mineral and vegetal oils applied on the wooden or steel formwork and fresh concrete. The evaluation of contact angle and interfacial forces help to efficiently select the most appropriate material.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Région Bruxelles Capitale ; Région wallonne : Direction générale des Technologies, de la Recherche et de l'Energie - DGTRE ; Vlaams Gemeenschap
Researchers ; Professionals
http://hdl.handle.net/2268/39918

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