corroded mild steel ties
The subject buildings form an estate of terraced and semi-detached social street housing of cavity construction under pitched roofs.

Problem
The existing wall ties viewed were found to be mild steel vertical twist ties, commonly known as fishtail ties. The galvanised coating was found to be in varying stages of corrosion, blackened with red rusting noted.
The corrosion of the embedded mild steel wall ties had resulted in the formation of ferrous oxide, which had expanded to many times its origonal thickness lifting and cracking the brickwork.

An archetypical example of a wall with the symptoms of exspansive corroding wall ties lifting the bricks cracking the bed joint horizontally that has simply been re-pointed. This action has only temporally address the symptoms and NOT the causation.    
Solution
AWT completed a remedial programme providing a comprehensive repair through the introduction of a pattern of remedial wall ties and isolating the existing ties, together with general brickwork repairs and re-pointing.



Action Wall Ties (AWT) are specialists in masonry reinforcement and repair, providing professional solutions to a wide variety of structural problems. Contact us on 01227 721 255, or email us.




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