Kreisel - repair mortar 456

Mortar 456 is intended for making a basic, profiling repair layer in the KREISEL concrete repair system. Mortar 456 can be the final finishing layer at elements that do not require perfect surface smoothness or it can be a primer for mortar 460. It is characterized by low shrinkage, high adhesion and rapid increase in mechanical strength. For use in the 5-50mm layer. The system enables the repair of concrete and reinforced concrete elements damaged under the influence of mechanical, physical and chemical factors (causing concrete damage and steel corrosion). It is suitable for repairing elements such as balconies, terraces, brackets, columns, lintels, etc. It can also be used for local repair and removal of concrete surface defects (e.g. cavities, crayfish, caverns). This mortar is water and frost resistant. Technical data: - packaging: 25 kg, on pallets of 42 pieces, - composition: Portland cement, mineral fillers, polymers, modifying additives, - compressive strength after 28 days: ≥ 25.0 MPa, - flexural strength after 28 days : ≥ 5.0 MPa, - adhesion to concrete after 28 days of hardening: ≥ 0.8 MPa, - shrinkage after 28 days of hardening: 0.12%, - carbonation: meets, - thermal compatibility: ≥ 0.8 MPa, - capillary absorption: ≤ 0.5 kgm-2h-0.5, - chloride content: ≤ 0.05%, - grain size: up to 4.0 mm, - soluble chromium (VI) content in the finished product mass: ≤ 0.0002 %, - classification according to PN-EN 1504-3: 2006: R2, - storage: up to 12 months from the date of production, in dry places and in undamaged factory packaging.