3. Properties of protective coating formulations

Numerous protective products can be applied to concrete surfaces (acrylic-, alkyd-, polyester-, vinyl- and epoxy-based paints, etc.) . However, the low level of microporosity and surface roughness of UHPC means that products with low viscosity and good spreading properties must be applied to form a film-forming, homogeneous coating. Indeed, UHPC surfaces have little tolerance to over-application, which can lead to aesthetic defects (e.g. "orange...