SockFix

Mechanical grouted sock anchor system for stabilising damaged masonry

SockFix is a mechanically grouted sock anchor system for stabilising damaged masonry. The system comprises of a grout-filled sock that combines with a threaded bar in a composite action which expands to form a strong chemical/mechanical bond with the substrate.

The SockFix system is used in heavy duty, high load applications such as stabilising rubble-filled walls, securing external walls to hollow concrete floor slabs, stitching cracked solid and multi-leaf walls and securing unstable parapet walls and arches.

Technical Details

  • Materials: Grade 304 (1.4301) austenitic stainless steel threaded bar, heavy duty mesh fabric sleeve
  • Bar Diameters: 8mm, 10mm, 12mm, 16mm
  • Standard lengths: Up to 3m. Couplers used to form longer lengths
  • End cap choices: Pointed as standard (effective guide and ideal for loose materials) or Flat Washer (maximises anchor bond length)
SockFix with flat washer end cap

SockFix with flat washer end cap

SockFix is installed through pre-drilled hole in structure.

SockFix is installed through pre-drilled hole in structure.

Grout is pumped slowly, expanding the sock to fill the hole. Fluid permeates through the sock to provide a bond with the substrate while a solid aggregate bar/grout composite is formed in the sock.

Grout is pumped slowly, expanding the sock to fill the hole. Fluid permeates through the sock to provide a bond with the substrate while a solid aggregate bar/grout composite is formed in the sock.

SockFix Grout Mixing Instructions

Each 20kg bag requires 5.5litres of clean cold water

1. Place 4.5 litres of clean cold water into a clean mixing container. While mixing, slowly add approximately ¾ of a bag of Helifix SockFix Grout

2. Continue mixing until all the above grout has been mixed

3. Add a further 1 litre of clean cold water (to make up the required 5.5 litres in total)

4. Add the remaining grout while continuing to mix

5. Continue to mix for a minimum of 5 minutes ensuring all the dry grout from the side of the container is removed and mixed

6. Leave to stand for 4 minutes

7. Pour into pressure pot through sieve

8. If possible, continue to agitate grout in pressure pot in-between installations

  • Grout-filled sock combines with threaded bar in a composite action and expands to form a strong chemical/mechanical bond with the substrate
  • For heavy duty, high load, applications
  • For securing external walls to hollow concrete floor slabs
  • For stitching cracked solid and multi-leaf walls
  • For stabilising rubble-filled walls
  • For securing unstable parapet walls and arches
  • Where high levels of performance are required in bending
  • Where drilling lengths in excess of 1m are required
Stitching a cracked solid wall.

Stitching a cracked solid wall.

Stabilising a cracked rubble-filled wall.

Stabilising a cracked rubble-filled wall.

Securing an external wall to a hollow concrete floor slab.

Securing an external wall to a hollow concrete floor slab.

  • Engineered project-specific solutions
  • Cementitious anchor system forms part of the structure
  • Fast, efficient, proven installation technique
  • Stabilises masonry and restores structural integrity
  • Installed in the fabric of the structure providing permanent, non-disruptive, fully concealed repairs
  • Retains the building’s original appearance
  •  More economical and sustainable than demolition and rebuilding
  • End cap options to suit a range of materials
  • Shut off valve simplifies installation and prevents excessive grout use
  • Post-tensioning is possible
  • Full technical support and Approved Installer network