Mortar 451 is intended for making the contact layer (adhesive bridge) and corrosion protection in the concrete repair system at KREISEL. The layer should not be thicker than 3mm. It is a tack mortar between the concrete or reinforced concrete element being repaired and repair mortar 456 or mortar 460. It facilitates further repair work and increases the adhesion of subsequent applied system layers. Having a high carbonation rate, it protects reinforcing steel against corrosion. It is characterized by high adhesion to concrete and reinforcing steel as well as flexibility. The system enables the repair of concrete, reinforced concrete damaged by mechanical or corrosive factors. This mortar is water and frost resistant.

Technical data

• shrinkage after 28 days of hardening: 0.14%,
• thermal compatibility: ≥ 0.8 MPa,
• capillary absorption: ≤ 0.5 kgm-2h-0.5,
• 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.