Concrete Cancer Repairs for Owners Corporations in Melbourne
Concrete Cancer Repairs
for Melbourne
Owners Corporations
Concrete deterioration caused by concrete cancer, can present significant maintenance challenges for Melbourne apartment buildings and other multi unit properties. Concrete cancer, cracking and spalling can affect balconies, walkways, lintels, car parks, beams, columns and other shared structures. If left untreated, these problems can worsen and lead to more extensive repairs.
Concrete Construction Solutions specialises in concrete cancer repairs and other concrete repairs for owners corporations (also known as body corporates) throughout Melbourne. With more than 25 years of experience working with concrete, we help owners corporations address deteriorating concrete in apartment buildings and common areas. Our team can assess affected areas and carry out appropriate repairs to help maintain the condition and integrity of existing concrete structures.
WHY IS CONCRETE CANCER
COMMON IN APARTMENT BUILDINGS
Concrete cancer is the common term for deterioration that occurs when the steel reinforcement inside concrete begins to corrode. Moisture and chlorides can contribute to corrosion, allowing the steel to rust and expand. This puts pressure on the surrounding concrete, causing it to crack, bulge and eventually break away.
Concrete cancer is a concern for apartment buildings because they often contain extensive reinforced concrete structures exposed to weather, moisture and years of use. Balconies and external walkways can be vulnerable to water ingress when waterproofing deteriorates or drainage is inadequate. Underground car parks and other shared areas can also experience moisture related deterioration.
The risk can increase with age, poor drainage, construction defects, inadequate concrete cover over reinforcing steel and exposure to harsh environmental conditions. However, concrete cancer can affect buildings of different ages, and the cause needs to be assessed in each case.
For owners corporations, recognising the early signs of concrete cancer is important. Cracking, rust stains, flaking concrete and exposed reinforcing steel can indicate deterioration that requires further investigation. An assessment can establish the extent of the damage and help determine the appropriate repairs.
What Owners Corporations Need to Consider
Arranging concrete cancer repairs in an apartment building involves coordinating the work, managing costs and considering the needs of residents. Some of the things to think about include:
- Understanding the Extent of the Damage – Establishing which areas require repairs and whether further investigation is needed to identify other potentially affected sections of the building.
- Coordinating Work Around Residents – Planning access to balconies, car parks and shared areas while minimising disruption to residents and visitors.
- Planning the Repair Budget – Obtaining a clear scope of work and cost estimate to help the owners corporation committee make informed decisions about repair costs and funding.
- Addressing the Cause – Considering whether water ingress, deteriorated waterproofing or drainage problems also need attention to help reduce the risk of further concrete deterioration.
Taking these factors into account can help owners corporations plan concrete cancer repairs and manage maintenance responsibilities for their apartment buildings.
We inspect, diagnose, and then repair the concrete cancer in apartment buildings using the most effective solution
WHAT OUR CLIENTS THINK ABOUT OUR
CONCRETE CANCER REPAIR SERVICES
“Had the guys fix a few of our balconies and some other damaged concrete around the building. They were so helpful, super clear communication, and went above and beyond to do a bit extra for the building. Highly recommend.”
Robbie Van Rijk
photos before concrete cancer repairs
photos after concrete cancer repairs
common signs of concrete cancer
in Melbourne properties
- Exposed Reinforcement: Rusting steel bars visible where concrete has broken away from balcony edges, balcony undersides, car park ceilings or other concrete structures.
- Rust Stains: Brown or orange stains on balcony surfaces, walkways, concrete facades or car park ceilings, which can indicate corroding steel reinforcement inside the concrete.
- Cracking or Flaking Concrete: Cracks, flaking or pieces of concrete breaking away from balconies, external walls, columns, beams or shared walkways.
- Hollow Sounding Concrete: Areas on balcony undersides, concrete walkways or car park ceilings that sound hollow when tapped, potentially indicating that the concrete has separated internally.
- Bubbling or Peeling Render: Bubbling, cracking or peeling paint and render on apartment building facades, balcony surfaces or concrete ceilings, which may be associated with moisture entering the structure.
- Water Leaks and Dampness: Water seeping through balcony slabs, car park ceilings or other overhead concrete surfaces, potentially indicating failed waterproofing, cracks or water ingress.
We inspect, diagnose, and then repair your concrete cancer using the most effective solution
Main causes of
concrete cancer
- Corrosion of Steel Reinforcement: Rusting of steel bars inside concrete due to water and salt exposure
- Exposure to Moisture and Water: Water infiltration weakens concrete and speeds up corrosion
- Chloride Exposure: Saltwater causes rapid steel corrosion, particularly in coastal areas, including the Melbourne Bayside suburbs
- Poor Construction: Low quality materials and improper curing make concrete more vulnerable
- Carbonation: Carbon dioxide reduces concrete’s pH, leading to steel corrosion
- Thermal and Moisture Expansion: Temperature and moisture changes cause cracking and spalling
- Inadequate Waterproofing: Poor waterproofing allows moisture to penetrate and damage concrete
- Age of the Concrete: Older concrete is more prone to moisture infiltration and corrosion
- Incompatible Reinforcing Metals: Contact between different metals in the presence of moisture can trigger galvanic reactions, leading to corrosion of the weaker metal and subsequent concrete damage
- Reinforcing Bars Too Close to the Surface: When steel reinforcement is positioned near the concrete surface, it is more susceptible to moisture exposure, increasing the risk of oxidation and concrete cancer
- Stress Fractures from Excessive Weight: Overloading concrete structures can cause stress fractures, providing pathways for water to reach the reinforcement, leading to corrosion and concrete degradation
About us
Concrete Construction Solutions has a highly specialised concrete team, along with 25 years experience in evaluating, assessing, and rectifying all concrete and engineering problems.
In additon to concrete cancer repairs we also specialise in patching & repairs, coloured concrete, concrete sealers, exposed aggregate, rectifications, waterproofing, concrete preservation, and cutting & demolition.
We offer expert guidance and practical solutions for all your concrete requirements. Our team specialises in commercial, civil, and residential concreting, delivering optimal outcomes for your projects..
Concrete Cancer Repairs melbourne apartment buildings - FAQs
What is concrete cancer in apartment buildings?
Concrete cancer occurs when the steel reinforcement inside concrete begins to corrode. Moisture and chlorides can contribute to corrosion, causing the steel to rust and expand. This places pressure on the surrounding concrete, leading to cracking, spalling and deterioration that can affect the strength and durability of the structure.
In apartment buildings, concrete cancer can affect shared structures and common property, requiring investigation and appropriate repairs to prevent further deterioration.
How can I identify concrete cancer in an apartment building?
Common signs of concrete cancer in apartment buildings include cracking, flaking or breaking concrete on balconies, walkways and other concrete surfaces. Brown or orange rust stains, bubbling or peeling paint and render, and exposed or corroded steel reinforcement can also indicate deterioration. You may notice cracks that widen over time, concrete breaking away from balcony edges or undersides, hollow sounding areas or signs of persistent dampness and water ingress.
These signs can indicate concrete deterioration, although a professional assessment is needed to establish the cause and extent of the damage.
Why is concrete cancer common in apartment buildings?
Apartment buildings often contain extensive reinforced concrete structures exposed to weather, moisture and years of use. Water can enter through deteriorated balcony waterproofing or inadequate drainage, while airborne salts can contribute to corrosion in exposed areas. Construction defects, insufficient concrete cover over reinforcing steel and the age and condition of the building can also increase the risk of deterioration.
How is concrete cancer repaired in apartment buildings?
The repair process depends on the location and extent of the damage. It may involve removing damaged concrete, cleaning and treating corroded reinforcement, and replacing steel where necessary. Suitable repair compounds are then used to rebuild the affected areas, with protective coatings applied where appropriate. Where water ingress or deteriorated waterproofing has contributed to the damage, these issues may also need to be addressed.
Concrete Construction Solutions can assess affected areas and determine the appropriate repair approach for the building.
Can you repair concrete cancer in older apartment buildings?
Yes. Concrete cancer can affect apartment buildings of different ages, including older buildings with balconies, exposed concrete structures and underground car parks. The appropriate repair method depends on the building’s construction, the condition of the concrete and the extent of the deterioration.
Can concrete cancer be prevented in apartment buildings?
Although concrete cancer cannot always be prevented, regular maintenance and prompt attention to moisture problems can help reduce the risk of deterioration. Owners corporations can help protect their buildings by arranging inspections of exposed concrete, maintaining balcony waterproofing and drainage systems, addressing leaks promptly and repairing cracks or damaged concrete before the deterioration progresses. Protective coatings should also be maintained where appropriate.
Where do you provide concrete cancer repairs for apartment buildings?
Concrete Construction Solutions provides concrete cancer repair services for apartment buildings throughout Melbourne, with a specialisation in the Bayside and South Eastern suburbs. We help owners corporations address deteriorating concrete in shared structures and common areas.
Can concrete cancer repairs be carried out while residents are living in the building?
In many cases, concrete cancer repairs can be carried out while residents remain in the building. Depending on the work involved, temporary restrictions may be required around balconies, walkways, car parks or other shared areas. Access arrangements and safety measures depend on the location and extent of the repairs, so residents should be informed about expected disruption before work begins.
Does an owners corporation need an engineer’s report before arranging concrete cancer repairs?
This depends on the nature and extent of the damage. Some repairs may proceed following an appropriate assessment, while deterioration affecting structural elements may require advice from a suitably qualified structural engineer.
How long do concrete cancer repairs last in apartment buildings?
Properly carried out concrete cancer repairs can last 20 to 30 years or more, depending on the repair methods and materials used, the condition of the existing concrete and exposure to moisture and other environmental factors. Addressing underlying causes, such as water ingress or failed waterproofing, is important to help extend the lifespan of repairs. Regular maintenance can also help identify potential problems before further damage occurs.