Figure: Cortec Europe
The preservation project was conducted in several phases
For preservation of the tower, Cortec donated its MCI Technology that has revolutionized methods of extending the service life of concrete structures. As part of the memorial monument project, MCI Technology will mitigate corrosion of the reinforced concrete structural components of the water tower. Corroded surfaces of the tower have been unprotected and rusting for 29 years since the war. This resulted in substantial advancing corrosion of the damaged reinforced concrete structures. The preservation project was conducted in several phases:
- Protection of rebar from corrosion by applying MCI CorrVerter to corroded areas. This fast drying, water-based primer converts rusted surfaces to a passive layer.
- Protection of undamaged concrete surfaces with surface-applied MCI-2020 V/O coating, designed to migrate through even the densest concrete structures and seek out the steel reinforcement bars in concrete.
- Application of MCI-2006, a powder concrete admixture that protects steel reinforcing, carbon steel, galvanized steel, and other metals embedded in concrete from corrosion induced by carbonation, chloride, and atmospheric attack. When incorporated into the concrete mix, MCIs seek out and form a corrosion inhibiting protective layer on metals.
- Protecting the brick and all concrete surfaces of the water tower from harsh weather conditions with water-based primer/topcoat MCI Architectural Coating. This coating acts as a sealer, preventing penetration of water, chloride ingress, and carbonation into the concrete. It improves the appearance of buildings and structural elements and, when applied directly to reinforcement and/or metal, provides a source of corrosion inhibitors.
CorrVerter MCI was applied directly to metal surfaces
After having mechanically removed loose rust and scale, Cortec’s CorrVerter MCI was applied by brush directly to metal surfaces. This fast-drying, water-based primer converts rust into a hydrophobic passive layer. The coating offers a convenient, low-labor option when performing repairs on heavily corroded rebar and other metal surfaces. It penetrates and eliminates rust and protects bare metal against further rusting.
CorrVerter works by combining a unique formulation of chelating agents with a high solids waterborne latex that has extremely low water vapor permeability. It is recommended for application to rusty or poorly prepared steel surfaces where further corrosion protection is required and where good surface preparation is difficult to achieve. After CorrVerter dried, concrete surfaces were impregnated with MCI-2020. MCI Technology is utilized worldwide for the construction and rehabilitation of the world’s most famous building structures such as the Empire State Building, the Pentagon, and Dubai’s Burj Khalifa, the tallest tower in the world.
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