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Applications
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Masonry may deteriorate, crack, delaminate and fail for a variety of reasons. Many of these problems can be overcome by using various combinations of Helifix remedial ties and masonry reinforcement products and techniques.
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Helifix products provide secure and lasting connections in different building designs and materials including:
- Concrete frame
- Steel frame
- Brick veneer
- Marble / travertine panels
- Sandstone / limestone / granite
- Concrete blocks
- Terracotta / clay features
- Stucco / render
- Wood
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Cracked masonry is best stabilised by bonding HeliBar stainless steel bars into appropriate bed joints or cut slots, normally the bed joints. Tensile loads are redistributed along the masonry to minimise further developments of the crack which may occur when direct crack injection techniques are used.
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DryFix
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DryFix provides an effective and economical stress-free connection between all commonly used building materials in both cavity and solid masonry constructions without needing any grouts, resins or mechanical expansion. It is simply power-driven into position, via a small pilot hole, using a special installation tool that leaves the end of the tie recessed below the outer face to
allow an ‘invisible’ finish.
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Terracotta Tie
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The DryFix Terracotta Tie was developed specifically to secure fragile terracotta facings and delicate decorations and features which have become loose or are suffering from stress fractures.
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Stucco Pinning
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Special short versions of DryFix are available for re-pinning separated, unstable and potentially dangerous loose render. Typically the render is 20-65mm thick but this can vary greatly between 12mm and 80mm. Breakdown of the bond between the render and back-up material can occur for various reasons but once delaminated it is likely to become increasingly unstable, resulting in cracks and bulges. These in turn encourage water penetration while wind loads tend to loosen the render even further. Mosaic tile finishes can easily become loose and fall away.
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TorkFix
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TorkFix mechanical repair anchors are a well proven method of stabilising masonry veneer walls which have become detached from the inner supporting structure due to wall tie failure or omission at the time of construction. Suitable for tying masonry veneers to inner wythes of brick, concrete block, wood or steel stud, TorkFix retrofit anchors provide structural stability and resist wind pressure forces.
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Seismic Connector
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Masonry veneers may require maintenance and repair to restore performance lost as a result of age, corrosion of existing reinforcement resulting in spalling, cracking and de-bonding, or to correct damage following a seismic event. With more rigorous standards being imposed on building owners, masonry may require upgrading to attain modern performance requirements.
The Seismic connector system is equally suitable for new build constructions to meet current seismic requirements and is simply installed into the masonry as the outer wythe is constructed.
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CemTie
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Grouted tie for stabilising solid masonry.
APPLICATIONS
- Stabilising solid or rubble filled walls.
- Lintel repairs.
- Securing multi-layer brick rings in bridges, tunnels and arches.
- Reconnecting separated internal and external building walls.
- Repairing and securing parapets, cornices and decorative fascias.
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Refacing Tie
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Wall tie for extending an existing wall, connecting a cross wall or securing a new wythe to an existing wall.
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PatchPin
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Provides a strong mechanical key when patch repairing reinforced concrete.
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Using 16” long HeliBars, together with DryFix retrofit ties, creating movement joints in existing walls is very simple. The appropriate number of DryFix ties are installed either side of the proposed joint. Horizontal slots are then cut, to the required depth and vertical spacing, across the planned movement joint. A vertical slot is then cut in the outer wythe between the two columns of DryFix ties.
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HeliBond Grout
PolyPlus SF
EpoxyPlus
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Request
