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Concrete patching pin

Helifix PatchPin

PatchPin is a short stainless steel helical pin that provides a strong mechanical key when patch repairing reinforced concrete.

System Components

  • PatchPins
  • Power drill support
  • Drill bit

1. Remove all loose concrete from the area to be patched. Hammer tap the area to establish if any hollows are present and break back to sound concrete. Remove any dust and debris with a stiff wire brush. Clean and treat any exposed embedded steel rebar with a suitable epoxy coating.

2. Drill pilot holes, vertically or at an angle of up to 45°, to the correct diameter and spacing into the concrete (using an SDS rotary hammer drill).

3. Fit the PatchPin drill sleeve driver over the drill bit and insert the PatchPin into the tool. Install the PatchPin into the pilot hole with the SDS rotary hammer drill set to hammer only. Ensure that the outer end of the pin will be below the face of the concrete patch – the pin can be bent, if required.

4. Apply the patching mortar, as required, in accordance with the Manufacturer’s instructions. Fill all gaps and make good the surface.

Additional Advice

  • Pin spacing and position may be varied to suit site conditions but should start 2″ from the edge of the patched area
  • Intermediate pins should be at 6″-8″ center spacing. Extra pins may be used at the discretion of the site management or the engineer in charge
  • There should be a minimum of two pins per patch
  • Stainless steel helical pin for providing a strong mechanical key when patch repairing reinforced concrete.
  • Stainless steel helical pin supplied in lengths of 70mm (3″) or 100mm (4″)
  • Forms powerful bond with patching mortar
  • Additional mechanical bonding security
  • Can be installed vertically or angled and bent after installation if required
  • Requires no chemicals
  • Quick, simple and effective

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