The work performed (preparing the concrete surface, setting up a reference surface, application and quality control) must follow the applicable regulations (in Germany these are the DAfStb repair work guidelines and the ZTV-ING).
- Concrete should not be treated until at least four weeks after it has been produced so that the setting of the cement is not affected.
- New surfaces that are still unsoiled must be cleansed of coarse particles and dust deposits by sweeping or, if necessary, using compressed air. Surfaces already weathered, and those heavily soiled by oil, rubber residue, etc., must first be cleaned using superheated steam or high-pressure water before commencing treatment. It is imperative that the water used be siphoned off immediately to prevent saturation of the concrete.
- Hydrophobic Impregnation should always be performed on superficially dry concrete, i.e., when the surface of the concrete appears evenly dry, no more damp patches are visible and the moisture content equilibrium is established. To this end, moisture in the surface zone of the concrete is measured using a suitable technique (CM method or other methods allowed under ZTV-ING). The surface-zone moisture content of the concrete (from the surface to a depth of 20 mm) should not exceed 4 wt%.
- Evenly apply the hydrophobic impregnating agent to the building material in several coats, wet-on-wet. Do not allow puddles to form. The impregnating agent is applied by flow coating at reduced pressure. A lambskin roller may be used afterward for more even coverage.
- In the event of unexpected rain, cover surfaces already impregnated and halt all further impregnation.
- GENIOSIL® NOTE CE should never come in direct contact with bitumen. The resistance of insulating materials to GENIOSIL® NOTE CE must be tested on a case-by-case basis for the required temperatures.
GENIOSIL® NOTE CE is recommended for the hydrophobic impregnation and priming of concrete and reinforced concrete in road, bridge and building construction. In addition it is suitable for the hydrophobic treatment of fillers and pigments.
Expert opinions:
The effectiveness of GENIOSIL® NOTE CE is confirmed
and documented in the following laboratory reports:
• Kiwa GmbH Polymer institut, Flörsheim, Germany
Test report EN 1504-2 HI:
P 13491-1, 21.06.2023
• Kiwa GmbH Polymer institut, Flörsheim, Germany
Test report NT BUILD 515:
P 13893a, 08.02.2023
