Deactivator for exposed aggregate concrete with active ingredients to prevent the hydration of the top layer of the cement paste while allowing the other concrete to hydrate normally.
HEBAU’s CSE® Deactivator Nova is a water-based deactivator to achieve the desired exposure depth of exposed aggregate concrete.
HEBAU’s CSE® Deactivators are liquid, paint-like materials with active ingredient that prevent the hydration of the top layer of the cement paste in a previously defined “exposure depth”, whilst the concrete beyond this “exposure depth” hydrates normally. In this process the CSE® Deactivator only reacts with the cement paste of the fresh/green concrete in this particular depth, which leads to a neutralization.
The deactivated cement paste on the surface is then removed by “washing” with a high-pressure cleaner. The aggregates in the concrete are now exposed and therefore it is referred to as “exposed aggregate concrete” (from an exposure depth of 2 mm) resp. “micro exposed aggregate concrete” (up to an exposure depth of 2 mm).
CSE® Deactivator is available in 4 different versions and each version offers 11 different exposure-depth types.
For both, negative and positive applications:
Only for positive applications:
Exposed aggregate concrete surfaces have following advantages: