Influence of kind of mechanical concrete surface preparation on the adhesion of epoxy coatings

Guenther Roessler ,  Michael Raupach 

Aachen University of Technology - Institute for Building Research (IBAC), Schinkelstr. 3, Aachen D 52056, Germany

Abstract

If concrete surfaces should be coated they have to be prepared in such a way that the adhesion of the coating on the concrete will be durably sufficient.

Results of an investigation will be presented concerning adhesion of epoxy resin on concrete in dependence from concrete surface preparing method, roughness, concrete quality, viscosity of resin and temperature.

The results can be summarized as follwing: Concrete surfaces should be prepared mechanically in any way. Blasting with steel balls leads to the highest adhesion strength. If milling cutters must be used, for example if concrete must be removed, the surface should be finished up with steel ball blasting. The temperature while welding an asphalt sheet or application of asphalt mastic does not moderate the adhesion strength.

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Presentation: oral at E-MRS Fall Meeting 2005, Symposium G, by Guenther Roessler
See On-line Journal of E-MRS Fall Meeting 2005

Submitted: 2005-06-10 11:27
Revised:   2009-06-07 00:44
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