Remediation · Concrete Spalling
Concrete spalling, often called concrete cancer, occurs when embedded reinforcement corrodes and expands, cracking and displacing the concrete around it. DYME coordinates the investigation and structured repair of affected elements.
Reinforcement corrodes when moisture and air reach the steel, typically because concrete cover is insufficient, the concrete has cracked or carbonated, or chlorides have penetrated the surface. As the steel corrodes it expands, forcing the surrounding concrete to crack, drum and eventually break away.
Visible signs include rust staining, cracking that follows the line of reinforcement, hollow-sounding areas and fallen fragments. Balcony edges, slab soffits, planter walls, columns and facade elements exposed to weather are common locations.
Investigation typically starts with existing reports and a visual and sounding survey to map the extent of affected concrete. Where the condition of the structure is in question, DYME coordinates the appointed engineer’s assessment and any testing they require before the repair scope is fixed.
The scope defines the repair method, the elements to be treated and the access strategy. Because the true extent often exceeds what is visible, the scope also sets out how additional areas found during breakout will be measured and approved.
Works are sequenced by elevation or element, with access equipment planned around occupants and building operation. Specialist concrete repair trades carry out breakout, steel preparation, reinstatement and protective coatings under DYME’s coordination, with engineer inspection hold points recorded at each stage.
For a Sydney or NSW concrete spalling enquiry, provide the property location, the elements affected, any engineering reports, access considerations, budget range and required timeframe.