The challenge
Thermal cycling, flue gases and weathering had caused concrete spalling, rebar corrosion and cracking on two 50 m power plant chimneys.
Structural repairs at that height need stable access, proper surface preparation and repair materials suited to a hot, aggressive environment.
Scope of works
- Rope access and suspended platforms with independent fall-protection lifelines
- Removal of carbonated concrete, cleaning of corroded reinforcement and abrasive blasting
- Epoxy crack injection and high-strength polymer-modified repair mortars
- Anti-carbonation and weather-resistant protective coatings
Outcome
Both chimneys were structurally rehabilitated, extending their service life and improving safety. The same chimneys were later repainted, see two 50 m chimneys painting. Learn more about our chimney repair services.
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