Concrete Repairs

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The damaged concrete has been broken out and the steel reinforcement cleaned and treated. The next stage is to replace the concrete with the special repair mortars.

Concrete Repairs

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The repair has been partly completed and ready for inspection by the engineer prior to reinstating the concrete with a specialised cement based repair mortar.

Manly Beach Concrete Remediation

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The existing balcony had severe concrete spalling and corroded reinforcement. The building was over 35 years old and close to the ocean. The corrosion was due to a number of factors but primarily due to poor quality concrete and inadequate concrete cover to the steel reinforcement given the coastal location. The acrow props provide temporary […]

Remediated Balconies

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In older style buildings, many balconies were constructed without a waterproof membrane. As a result, the soffit (underside) of the balcony is often affected by concrete spalling (concrete cancer).  This is due to moisture seeping from the exposed top surface of the balcony migrating through the slab to the soffit where the moisture can become trapped […]

Manly Apartments

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  This Manly apartment building was a landmark building at the time of its construction in the late nineteen sixties. The building is located on the beach front and due to its triangular shape all units have excellent water views and sun. Close Consultants were employed to undertake initial building investigations, prepare tender documents, award […]

Apartment Building Bondi Beach

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This building was constructed about 1960 and is a reinforced concrete frame with load bearing masonry infill walls. The building is situated close to the ocean and is very exposed to the elements. Close Consultants were appointed by the Owners Corporation (OC)  to review a proposed contract for undertaking some urgent concrete repairs. After reviewing the […]

Concrete Repair

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The spalling concrete (concrete cancer) was broken out by the contractor exposing the rusting steel enforcement. The steel is inspected to ensure that all the rusting steel has been uncovered. Often this zone extends beyond the limits of the spalled concrete. Once the extent of the rusting has been determined then the repair process can start. […]

Concrete Expertise

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Typical Solutions to Concrete Structure Top right: Desalination – the removal of excessive amounts of salts from the concrete using electro-chemical extraction processes. Top left : Temporary props being installed to facilitate investigations/repairs to the precast concrete parapet wall. Bottom right : cathodic protection installed in new a concrete slab. The white strips are the sacrificial titanium anodes […]

Concrete Repairs

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The floor slab is located in a laundry area of the unit and subject to periodic flooding.  The floor slab was not protected by a waterproof membrane so any moisture or water on the floor was able to seep into the concrete initiating the corrosion of the steel reinforcement. The photo shows that the drummy and spalled […]