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Sika concrete repair solution for Tower Block Refurb

Sika concrete repair solution for Tower Block Refurb

Sika have supplied their corrosion-resistant repair solution as part of a refurbishment at The Brentford Towers in west London.

UK Gunite was selected to apply the Sika repair system on behalf of the project’s main contractor, Engie UK.

Initially, Sika® FerroGard®-903+, a surface-applied mixed corrosion inhibitor was provided.

This solution based on organic compounds, is designed for use as an impregnation of steel- reinforced concrete.

It is spray-applied and penetrates concrete to form a protective monomolecular layer on the surface of the reinforcing steel, thus delaying the corrosive process and the rate it progresses.

Surface cracks and spalling were then repaired using Sikagard®-545 W Elastofill. This product provides a crack-bridging intermediate coat, which closes pores, cavities and blowholes. It also offers excellent resistance to water ingress and damp.

Sikagard®-550 W Elastic provided the concrete surface’s crack-bridging protective coating. Class ‘O’ fire-rated, Sikagard®-550 W Elastic the product is particularly ideal for exposed concrete structures susceptible to cracks and openings and the like.

For the Brentford Towers refurbishment, Sika’s repair and corrosion protection solution was used across a surface area covering 25,000m².

John Dorling at Engie, said: “This was a huge project to undertake. Therefore, we required a concrete repair and protection system that was proven to be effective over large areas.”

“The spray-applied Sika® FerroGard®-903+ was not only the best solution in terms of the protection it offered, it was also the most time and cost-effective, as its penetrative properties negated the need to break-out large areas of concrete. The Sikagard®-545 W Elastofill was also a revelation in terms of its crack-bridging ability and the light-grey finish it provided.”

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