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Anti-carbonation coatings are surface treatments that have a high resistance to carbon dioxide. They protect concrete from carbonation by acting as a carbon dioxide barrier. The elastic properties of some manufactures products allow for an amount of movement and crack bridging. Most manufacturers offer these products as part of a complete concrete repair package, so it is important to choose the correct package to suit the needs of each particular contract.  |
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There are many different concrete repair mortar products on the market. Concrete Renovations repair concrete using a number of different systems depending on the situation of the individual repair. Products are generally split into two groups, Cementitious and epoxy each having different qualities for different applications. |
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Migrating Corrosion Inhibitors or MCIs are surface applied mixed corrosion inhibitors, designed for use as an impregnation of steel reinforced concrete. These form a protective monomolecular layer on the surface of the reinforcing steel. Sacrificial Anodes are used in concrete rehabilitation to prevent the formation of new corrosion sites on adjacent rebar. The anode is fixed to the reinforcing steel by means of tie wires, which allow attachment in horizontal, vertical and overhead locations. Once installed, the zinc core corrodes preferentially to the surrounding rebar, providing ‘Cathodic Prevention’ and therefore preventing ‘Incipient anode’ formation. Pellet Vapour Phase Inhibitors vaporise and permeate the concrete substrate. The alkalinity ensures the pacification of corrosion as it is adsorbed to the reinforcing steel surface, blocking the path of Chlorides, Water and Oxygen, the fuel of reinforcement corrosion.
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Fairing coats and Levelling Mortars are designed for application in thin layers to produce a fair-faced appearance to concrete surfaces or masonry surfaces in readiness to receive a protective/ decorative coating. Surface imperfections up to 3 mm in depth can be filled with the scrape-coat application. |
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There are many ways to seal a joint depending on the circumstances and the performance required from the joint. The three types of joint sealing used by Concrete Renovations and basic mastics including polysulphides, hypolong overlay joints and preformed high performance joints. |
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Crack Injection Resins are designed for injecting cracks in concrete and masonry where there is a need to consolidate a structure or exclude water and air from contact with reinforcement. Cracks greater than 0.2mm in width are injected with Low Viscosity resins. Wider cracks are injected with a Thixotropic resin.
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