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Main solutions for concrete problems
Building surfaces, such as cement, tile, stone, marble, are subject to damage by natural corrosion because they are exposed to polluted areas. The deterioration is caused by the combined and / or synergistic action of biological, physical and chemical agents.
Water, sulphate anions and airborne particles are considered to be the most aggressive corrosive agents in building materials. In particular, the role of water as a corrosive agent is twofold: (a) it contributes to the leaching of insoluble constituents found in building materials and (b) it contributes to the transfer of salts from one site to another. In addition, water favors the growth of micro-organisms and the formation of crusts on the surfaces of structures.
The promoted structural damage entails high maintenance and repair costs. Therefore, the development of multifunctional products combining either stabilizing, hydrophobic, self-cleaning and / or antifouling properties is a promising solution in the treatment of building surfaces.
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Concrete Repair
As example, the selection of the repair material and techniques can be based on the various principles described in the EN 1504-9. All over the world, some companies can provide repair materials that meet the local and international standards requirements such as ASTM, EN etc.
Concrete Repair
- Small patch area: Hand applied repair with polymer modified fast setting mortar.
- Repair in rebar congested areas: Recasting with concrete/micro-concrete with pourable repair mortar.
- Large repair area: Machine applied repair with repair mortar.
- Reinstatement of cracked structure integrity: Crack injection with resin epoxy.