Concrete Spalling

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Concrete spalling or cancer – This building disease has multiple names. Its first symptom is surface staining, followed by concrete separation from the surface of the affected areas, with a commonly held misconception being, that it is caused by the weathering process.

Concrete spalling is caused when steel reinforcement within a concrete slab begins rusting. When steel rusts, it expands approximately 5 times its original size causing concrete displacement and flaking. On becoming damaged, more water can enter the affected area, speeding up the process.

Whilst the exact cause in a case of concrete cancer often depends on the unique circumstances of each case, several factors that cause the spalling are often at play. These include the steel being too close to the surface allowing water to react with it, poor quality steel, incompatible metals used close to each other causing an electrical reaction, and damage to concrete allowing water to enter the slab and come into contact with the steel.

Spalling in concrete puts owners of property at risk of negligence law suits.

Damage can occur through concrete pieces falling and injuring people or property. Further, concrete spalling that is not attended to in a timely manner will only lead to further repair costs as the problem spreads. Concrete spalling cannot be repaired simply by rendering over the affected area.

To obtain expert advice on repairing and halting further concrete spalling problems then contact us on 8816 4980 or enquiry@waterproofing.com.sg, our grouting and injection service will be all your needed.

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