Recently, the number of delamination of industrial floors has increased.
The Technical Support Department of the BBRI has encountered more than 40 cases in 2010. This involves that during the last 2 years almost 200.000 m² of industrial floor has been damaged by delamination. The repair has costed over 10.000.000 euros to 200 small companies specialized in laying industrial floors and the 270 ready-mix concrete producers. Delamination is a disorder caused by a combination of several concrete technology factors, of environmental conditions and execution techniques.
A lot of these problems are linked to the moment at which the contractor starts to finalize the surface, that dependents on the concrete properties and the environmental circumstances. Nor in Belgium, nor in Europe exist normative quantitative rules to determine this moment (for example NBN EN 13670 concerning the fabrication of industrial concrete floors or NIT 204 concerning industrial floors based on cement).