A new method for concrete surface roughness characterization by opto-morphology technique
|Damien Schwall , Luc Courard|
University of Liege (ULg), B5, Liège 4000, Belgium
The study of adhesion of repair materials on concrete structures implies a good knowledge of the influence of concrete surface treatment. The effects of surface preparation technique is rarely clearly described and parameterised: it is consequently difficult to point out the real influence of roughness on adhesion results. A large research project has been realized with regards to the influence of concrete substrate strenght and preparation technique efficiency. A new technique has been used in order to quantify the surface roughness of concrete: the projection “moiré” technique is an interfer-ometrical measurement method. The “moiré» phenomenon appears when two networks of light rays, made of equidistant lines - alternatively opaque and transparent -, are superimposed.
Presentation: poster at E-MRS Fall Meeting 2005, Symposium G, by Damien Schwall
See On-line Journal of E-MRS Fall Meeting 2005
Submitted: 2005-06-03 12:57 Revised: 2009-06-07 00:44