Concrete Spalling Repairs
Concrete Spalling Repairs in Sydney performed using Industrial Rope Access for difficult to access areas, our specialists concrete repair personnel can carry out any type of render repairs and facade repairs from cracked concrete to complete concrete cancer repairs.
Concrete Cancer is common in Sydney specially those who are close to the coast where the internal steel re-inforcing has been in contact with water that has ingressed into the concrete and where the steel is within 25mm to the surface of the facade substrate it will allow water to get in and start the corrosion process to the internal steel. When the steel start to corrode it expands, the pressure on the surrounding concrete blows out the concrete and falls to the ground.
Our specialized Abseiling Access personnel can carry out concrete cancer repairs to any type of building facade and or structure by removing the affected internal steel by grinding out the rust.
Cost Effective Concrete Repairs
Concrete repairs in Sydney is inherent due to the proximity to the ocean. As salt travels inland to over 100km., the salt when air bourne combined with strong wind currents and rain, the salty water gets absorbed into the concrete wherein the internal steel re-inforcing is within 25mm to the surface normally. It will start corrosion and can easily expand through internal steel rusts. This will result to an expanding force that may blow out or spall the surrounding concrete, this process results in the term Spalling or Spalled Concrete. The method required for concrete spalling repairs needs an access to the area through Industrial Rope Access. The accessibility provided the repair person will allow removal of damaged concrete surrounding the affected area by using a grinder to square cut down through to the internal steel.
Preparation of the internal steel requires all rust and laitance to be remove using abrasive power tools down to bare white steel first. However, where loss is greater than 10% of the steel, it will require replacement in consultancy from a structural engineer. Then, cutting square edges to minimum of 25mm.
Patching requires application of Sika Monotop 610 internal steel treatment sink coating to be applied as specified by manufacturer’s directions. Then, apply Sika Monotop 615 HB or CI to the wet Monotop 610 (as the 610 is also a bonding bridge). Fill the affected areas with Monotop 615 and finish with concreting techniques to best match the existing finish of the facade. Allow to cure for 48 hours before painting.
Client Satisfaction – Guarantee for Quality Concrete Repairs and Remedial Works
Advanced Solutions Group’s Team will ensure that all works are performed using the highest of quality materials. All works performed will have quality assurance documentation noting areas of concrete repairs including photo and diagram reference guide for transparent business relation. You are more than welcome to acquire any in-house information for quality assurance.