0544 IMPA CEM
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Description and use IMPA CEM is an anticorrosion mortar based on cement binders and synthetic polymers, suitable to treat reinforcing rods during restoration works of degraded reinforced concrete. Being water and carbon dioxide impermeable, and with an alkaline pH, it will ensure long lasting iron protection against corrosion. IMPA CEM features excellent adhesion both to iron and concrete, thus behaving as an adhesion bridge for repair mortar. Technical data Colour Binder Max. particle size Mixing water Working time of the mixture Specific gravity of mixture Adhesion to substrate Practical consumption Storage life NB: Data recorded @ 20°C (68°F). red cement-synthetic resins 0.35 mm (UNI EN 933-1) 20 ÷ 30% by weight 1 hour 1300 kg/m3 (UNI 8995) 1.2 MPa (UNI EN 1542) 0.12 ÷ 0.20 Kg/linear metre on rod with a diameter of 10 mm; 1.75 kg/m² per 1 mm thickness. 12 months in original sealed container. Application note Substrate preparation Remove all loose concrete parts up to expose the iron rods. Buff or sand down the rods to bare metal. Take off any trace of rust and dust. Product preparation Mix 2 kg IMPA CEM with 0.4 ÷ 0.6 litres clean water to obtain a liquid grout to be applied by brush. Application method Apply a first coat of IMPA CEM, approx 1 mm thickness, over the rods making sure the product is well spreaded to reach even the hardest spots. Wait 2 ÷ 3 hours, apply a second 1 mm coat of IMPA CEM, then spread a fiberreinforced mortar suitable for high thickness restoring, within the next 2 ÷ 3 hours. NOTE: Do not apply under direct sunlight or in strong wind, and when the relative humidity exceeds 75%. Surface and ambient temperature must be above + 5 (41°F) and below 30°C (86°F). Do not use the product if it is already in the setting phase. Store the product in a dry place, away from damp. IMPA Spa - Via Crevada 9/E - 31020 San Pietro di Feletto (TV) Italy - tel. +39 0438 4548 - fax 0438 454915 - www.impa.it - info@impa.it

Passivating grout 24/04/15 LRC/rz Information provided in this technical data sheet is based upon our best experience and technical knowledge; it does not absolve the users from carrying out tests and preventive checks in order to verify the suitability for use. For further technical information about specific systems and/or special applications, please contact our TECHNICAL SERVICE. FOR PROFESSIONAL USE ONLY This note replaces all the previous ones. Please, make sure to have the latest issue. The above mentioned data are meant to facilitate our customers in the use of our products. IMPA is...