SockFix

Mechanical grouted sock anchor system for stabilising damaged masonry

SockFix Components

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.

Download the SockFix Grout Safety Datasheet

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 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.

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, to view a project case study click here
  • 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
Please note: repair details CS15, CS17 and RW07 relate to SockFix applications and can be downloaded here.
 

Stitching a cracked solid wall.

 

Stabilising a cracked rubble-filled wall.

 

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