KHIA headerKnow-How in Action

VOL XXXI, NO 144

Curing Concrete Cancer With Belzona

 
 

Industry:

Buildings & Structures (BSTR)

 
 

Application:

Wall Problem Areas (WPA)

 
 

Customer Location:

Apartment Complex, Gold Coast, Australia

 
 

Application Date:

May 2014

 
 

Application Situation:

Concrete balcony at a residential apartment complex

 
 

Problem:

The original concrete was starting to degrade due to a combination of its prominent coastal location and incorrect positioning of the steel reinforcement during original construction. Carbonation had taken place causing corrosion of the reinforcement steel leading to concrete spalling.

 
 

Products:

Belzona 4111 (Magma Quartz)

 

Substrate:

Concrete

 
 

Application Method:

Application was carried out in accordance with Belzona System leaflet WPA-4. All areas of damaged concrete were removed back to a sound substrate after which the exposed reinforcement bars were also cleaned back to bright metal. The entire area was then coated with Belzona 4911 (TX Conditioner) before the area was rebuilt with Belzona 4111. Some temporary shuttering to help support the repair whilst it cured was installed. once cured, the shuttering was removed and the area painted to leave a pleasing aesthetic finish.

 
 

Belzona Facts:

Belzona 4111 was chosen for its superior properties over conventional repair methods. Being a fast curing, non shrinking and impermeable layer that allows for a quick easy repair that also prevents a recurrence of the initial problem.

 
 

Photographs Description

1. Close up of the damaged balcony 2. Preparation underway 3. Application completed with temporary shuttering in place  4. The restored balcony

 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 Case study pic four

 

 
 
For more information about Belzona visit: www.belzona.com