Characterization of the surface of formworks – Influence of the surface energy and surface texture parameters on the demolding forces

Adhesion between concrete and formwork is ruled by the chemical physical phenomena emerging contact of these two surfaces. The objective this work to understand how adhesion influenced morphological thermodynamic surface properties formwork. Different surfaces are considered: metallic with without demolding agent, polished coated Surface texture parameters energy determined interferometry measurement angle, respectively. A procedure developed allows evaluation performances in relation properties.