Project Case Study
Project Title: Bloomsbury, Central Location – Concrete Repair and Protective Coatings
Concrete Soffit Repairs & Protective Coatings
Location: Bloomsbury, Central London
Project Overview
Concrete Repair Solutions were appointed to carry out specialist internal concrete repair and protective coating works to a multi-storey residential building in Bloomsbury, Central London.
The project involved the repair of deteriorated concrete soffits associated with filler joist floor construction within occupied residential accommodation. The works required controlled breakout, careful sequencing, and reinstatement to both structural and fire performance standards.
What We Did
- Repaired damaged concrete ceilings where deterioration had occurred
- Treated and protected exposed steel elements to prevent future corrosion
- Reinstated repaired areas to match the original ceiling profiles
- Applied protective coatings to improve long-term durability
- Reinstated fire protection to exposed structural steel
- Delivered the works within a live residential environment
Technical Overview
Structural Context
The building comprises five stories of residential accommodation constructed using a concrete-encased steel frame with filler joist floor slabs. Localised deterioration to internal concrete soffits had resulted in defective concrete and exposure of structural steel elements.
Repair Methodology
Defective and delaminated concrete was carefully removed to expose sound substrate. Exposed steel filler joist beams were cleaned and treated with a corrosion-inhibiting primer. A bonding bridge was applied to prepared surfaces prior to reinstatement using a polymer-modified concrete repair mortar, hand-applied and formed to match existing soffit profiles.
All repaired and adjacent concrete surfaces were primed and treated with an anti-carbonation protective coating system to reduce future durability risks. Fire protection to exposed steel elements was reinstated using an intumescent coating system.
Outcome
The completed works reinstated the integrity and durability of the affected concrete soffits, mitigated corrosion risk to embedded steelwork, and restored fire protection to structural elements. The finished surfaces achieved a consistent appearance suitable for occupied residential use while providing long-term protection against further deterioration.
Services Demonstrated
Concrete repairs (hand-applied)
Filler joist beam exposure and protection
Corrosion protection systems
Anti-carbonation coatings
Intumescent fire protection
Internal structural repair works
