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Concrete Cancer

Corrosion to Concrete Reinforcement Steel

Concrete Cancer Picture

Concrete Cancer is often identified by flaking concrete or rust stains which originate deep within the concrete.

It is a serious problem caused by rusted stains reinforcing from within the steel. As steel rusts, it can expand up to 7 times its original size causing the surrounding concrete to be displaced. As the steel pushes the concrete away, more water gets to the steel expediting the process. The process is generally due to:

  • Poorly treated reinforcing steel being used in the original pour of the slab
  • The ends of reinforcing being too close to the surface allowing water to seep through concrete and react with the steel
  • Incompatible metals being used in close proximity to each other, thus causing a reaction
  • Fractures in the concrete allowing water to penetrate the concrete and react with the steel

Spalled concrete can cause a safety hazard. Concrete cancer and delaminated concrete should be treated immediately as deferring the treatment will inevitably lead to increased problems into the future. Similarly, treating the visual aspects such as rendering over the steel are short term solutions as the rusting process will continue below the surface causing the steel to again displace the concrete and in some cases, rust so badly the steel eventually needs replacement.

Wikipedia Entry for Concrete Cancer

Concrete Cancer 2 Picture

ABIS building and pest inspections are conducted to the highest standard by building inspectors with a minimum of 10 years experience together with the highest professional qualifications in their field. ABIS has been in business over 27 years conducting both building and timber pest inspections.

Our highly recommended home inspectors are all long term trusted employees not here today gone tomorrow sub-contractors. ABIS Inspectors are supported by a unique computer aided inspection system and the latest inspection equipment such as high sensitivity thermal cameras costing thousands of dollars that others don’t often have.

When you book a pre-purchase inspection with ABIS, our friendly local (they know the area and are not in a interstate or overseas call centre) staff will make the whole process easy for you. Our Office team make all the arrangements with you, your agent, the vendor, the tenant (if there is one) and you will be sent an email to confirm the inspection time along with a pre-engagement letter which covers the scope of the inspection. Good communication and local knowledge are key to you getting the most out of your building and pest inspection. We are always happy to answer all your questions and you are most welcome to be on site when we do the inspection. Our technology, systems and processes also mean you get your high quality report shortly after your inspection is completed.

And all this for an incredible low price.

Service Areas

The Peninsula Moreton Bay Area East Brisbane Redland Bay Area Gold Coast Ipswich Brisbane West Brisbane Northside Brisbane Southside Logan City

ABIS The 1st Choice in Building & Pest Inspections