One-component structural repair mortar, reinforced with fibers and silica fume that meets the requirements of class R3 of UNE 1504-3
Mixing proportions: 3,625 liters of water per 25 kg bag. On concrete surfaces, remove weak, damaged and deteriorated concrete and, where necessary, sound concrete, by suitable mechanical means or high pressure water jet. On reinforcement, prepare surfaces using abrasive blasting techniques or high pressure water. Although a primer is not normally required on a prepared surface with adequate roughness, a prior surface wetting is necessary. Do not let the surface dry before applying the repair mortar. When an adhesion bridge is necessary, apply MonoTop-910S or with the same product (MonoTop-612) make a grout and press on the support. In both cases, the subsequent application of the mortar must be done "fresh on fresh". Where a barrier coating is required on the reinforcement, apply two coats of MonoTop-910S around the entire perimeter of the reinforcement.
Regeneration of thick layer concrete, both on vertical surfaces and ceilings. Regularization of concrete or cement mortar surfaces, prior to the application of a paint. Repair of concrete elements. Grouting of precast elements. Suitable for concrete repair work (Principle 3, method 3.1 and 3.3 of UNE-EN 1504-9). Repair of chipping and concrete damage in buildings, bridges, infrastructures and superstructures. Suitable for structural reinforcement of concrete (Principle 4, method 4.4 of UNE-EN 1504-9). Increase in the bearing capacity of concrete structures through the addition of mortar. Suitable for the conservation or restoration of passivation (Principle 7, method 7.1 and 7.2 of UNE-EN 1504-9). Increase of the covering with additional mortar and replacement of contaminated or carbonated concrete.
For 1 liter of fresh mix: 265 g of water and 1,835 g of SIKA MonoTop-612, which is equivalent to a consumption of 1.835 kg / m2 and mm of thickness. The minimum consumption of SIKA MonoTop-612 powder will be 9,175 kg for a layer thickness of 5 mm. It can be applied by traditional manual methods or by using wet spray equipment. When a bonding bridge is needed, make sure it is still fresh when the repair mortar is applied. When applied manually, press the mortar with a trowel strongly on the substrate. Protect freshly applied mortar from early dewatering with proper curing methods. Concrete must be free of dust, poorly bonded, surface contaminants, and materials that can reduce bond or prevent suction or wetting of repair materials. In steel reinforcement, remains of rust, mortar, dust, and other materials that may prevent adhesion or contribute to corrosion must be removed.