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Concrete Repairs to Five LPS Tower Blocks, Birmingham: 2016

 

Project

  • Five thirteen storey tower blocks constructed in 1967 using the Large Panel System.
  • The inner faces of the parapet wall panels showed evidence of deterioration, with visibly spalling concrete and exposed corroding reinforcement. 
  • Site investigations concluded that the damage was caused by low cover to the reinforcement and excessive carbonation levels.

Solution

  • Repairs undertaken to damaged areas of concrete, along with replacement of reinforcement, the application of a migrating corrosion inhibitor and the renewal of deteriorated movement joints.
  • Exclusion zone set up around base of each tower block as a precaution against falling concrete with a ground based banksman maintaining two way radio contact with operatives working on the roof.

 

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