Northwestern University Core Library

Water infiltration, deteriorated sealant, and steel corrosion led to the following:

• Open/de-bonded sealant joints
• Corrosion/expansion of the embedded steel components within the concrete
• Spalling of the vertical concrete facade

BAMR utilized suspended scaffolding to access every elevation of the circular façade to repair the following:

• Sealant removal and replacement
• Demolition of delaminated concrete, removal of embedded corrosion, replacement of embedded corroded steel, and installation of new concrete patch