Spalling Concrete
Spalling concrete is the cracking and bulging of the concrete ceiling caused by the corrosion of the reinforcement bars that forced the concrete to crack over a period of time.
Repair Method
Hack the bulging concrete until the reinforcement bars are exposed.
Use a wire brush to brush off the corroded bars.
Apply anti corrosion primer to the bars.
Apply bonding agent to affected area.
Patch up the affected area with polymer modified cement mortar or epoxy mortar
Allow it to dry before painting the affected area to match the existing colour.
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