Concrete Spalling Experts
Concrete cancer repairs gold coast
Gold Coast, Tweed Heads and Northern Rivers
Concrete cancer solutions
Concrete Cancer or Concrete Spalling is a common problem in all coastal regions, such as the Gold Coast. The climatic conditions of a coastal environment expose concrete to contaminants which accelerate corrosion of the steel reinforcement. This causes the steel to expand, displacing the concrete around it, causing it to become brittle and crack thus accelerating the spalling process.
Common signs include –
- Crazing and cracking concrete (concrete spalling)
- Rust stains which seem to leak out from within the concrete
- Bubbling (also called Plating) of concrete render
- Leaks which appear in overhead concrete surfaces
You can read our guide of how to identify concrete cancer below.
What causes concrete cancer?
Causes of concrete cancer
The steel reinforcing in concrete requires protection from the Building codes specify the steel reinforcing is covered by at least 50mm of concrete. Some structures require more depending on their use and local conditions. The minimum cover is designed to protect the steel.
When a engineer inspects the steel on a newly constructed building prior to the concrete pour, part of the inspection is to ensure that the steel meets its minimum cover requirements. The building codes pre mid 1980s required that the minimum cover of concrete was only 25mm. There for you will find that the steel reinforcing was much more susceptible to corrosion in buildings constructed before this era.
Cracks from Deflection
Due to environmental factors or others, buildings can move, which can cause cracks to appear.
These seems common in appearance and usually don’t cause much concern. However, often the cracking opens the concrete up to contaminants, which causes the erosion of the steel.
AAR (Alkali aggregate reaction)
AAR is an umbrella term for ASR (Alkali silica reaction) and ACR Alkali Carbonate reaction.
Such problems happen when the aggregates in the concrete react with the cement paste. They can be induced by damp humid conditions in which ASR is very common. ACR is very rare – however it does still pose a risk.
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Subject matter experts
Repair for Concrete Cancer
Repair options for concrete cancer on the gold coast?
Solace Building Services considers itself the leading company in the Gold Coast area who specialises in this field. From the feedback that we receive. Solace Building Services excels in,
- Noise and dust reduction
- Longstanding results
- Using global suppliers
- Investing in state of the art equipment
Solace Building Services engages with predominantly repairs that have already been attempted and failed. Solace Building Services has the expertise and the results to show in this field.