Twistfix

Helical Bars

Helical bars are stainless steel rods used for stitching cracks in brick walls, repairing sagging lintels, reinforcing masonry arches, and developing masonry beams to span localised patches of subsidence.

Typically bonded in the bed-joints of a wall with a suitable polymer-modified mortar, the bar and grout combination increases the toughness and strength of brick, block and stone walls and makes them less likely to crack.

They work with the masonry to generate lintels (beams) within walls and to increase the flexural strength, tensile strength and shear resistance of walls to combat building, wind, and seismic loads.

The ductile nature of the helically twisted bars allows them to accommodate cyclic thermal and moisture movements of a wall whilst holding the brickwork together and guarding against sudden failures

In manuf­ac­turing the bars, wire rolling machines progres­­sively alter the shape of the wire to produce a flange-profiled wire. The cold-rolling process work hardens the steel and doubles its tensile strength. When twisted into a helix shape, the high-tensile spiral bar has high helical-flanges and deep helical troughs which interlock superbly within high-strength mortars and grouts.

Why are Twistfix helical bars superior to other helibar types?

  • They are the design-engineers' upgrade of his earlier Helifix helibar product
  • A patented twisting method delivers helical bars having unequalled consistency of pitch angle and tensile strength across the range of bars
  • The bars and grout are inde­pen­dently CE Mark tested for brick stitching applications that resist loads of at least 8kN
  • The bars and grout inde­pen­dently tested for creating deep brick-beams with load-tables compiled by the BRE (Building Research Estab­lis­hment).

Twistfix Helical bars are available in 5 diameter sizes and a selection of lengths ranging from 1m to 7m long. They provide a quick, easy and cost-effective means of restoring or adding strength to existing buildings. A series of structural repair details and 'how-to' animations demonstrate the ease and versatility of installing these UK manufactured brick rein­­for­­cement products.

10 items
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6mm x 7m Bed Joint Reinforcement

6mm x 7m Bed Joint Rein­for­cement

Retrofit bed joint rein­for­cement pack containing 6mm x 7m stainless steel helical bars. The 6mm reinforcing bar is the standard size rod used for most masonry repair appli­cations. Pack of 5
RRP
£243.60
Price incl. VAT
£186.90
Crack Stitching Bars

Crack Stitching Bars

These 6mm Crack stitching bars for masonry repairs and rein­for­cement of cracks in walls. High tensile (circa 8kN) helical bars for repairing a cracked wall permanently - Pack of 10
RRP
£69.60
Price incl. VAT
£53.40
5mm x 7m Reinforcing Bar

5mm x 7m Reinforcing Bar

Lightweight reinforcing wires. 5mm x 7m stainless steel helical rein­for­cement wire is ideal for use in existing buildings with narrow mortar joints having a height as little as 7mm. Pack of 5
RRP
£199.50
Price incl. VAT
£153.30
7mm x 7m Helical Rebar

7mm x 7m Helical Rebar

Super-7 helical rebar for retros­pec­tive rein­for­cement of masonry structures. The 7mm diameter spiral bar has greater sheer strength than the standard 6mm version. Pack of 5
RRP
£303.91
Price incl. VAT
£231.00
8mm x 7m Heavy Duty Helical Bars

8mm x 7m Heavy Duty Helical Bars

These heavy duty helical bars are ideal for bed-joint rein­for­cement applications for use where additional sheer strength is needed. Pack of 5
RRP
£362.63
Price incl. VAT
£273.00
Brick Reinforcement

Brick Rein­for­cement

5mm-9mm Diameters- 10 Pk
Twistfix brick rein­for­cement stitching bars are used to reinforce and strengthen fractured brick and masonry walls. Reinforcing bars are 1m long.
RRP
£57.00
Price incl. VAT
£43.80
9mm x 7m Reinforcing Steel Bars

9mm x 7m Reinforcing Steel Bars

These reinforcing steel rods are the strongest helical bars available. They are idea for use in strengthen cracked walls in old barns, stone churches and retaining walls. Pack of 5
RRP
£424.20
Price incl. VAT
£325.50
Structural Repair Ties - 10Pk

Structural Repair Ties - 10Pk

Structural repair ties are extra long 12mm diameter drive-in helical wall ties that reinforce vulnerable masonry walls. Lengths 1070 (42"), 1220 (48") and 1370mm (54") - 10Pk
RRP
£276.42
Price incl. VAT
£199.50
Reinforcing Bars - 480 Brick Stitches

Reinforcing Bars - 480 Brick Stitches

Reinforcing bars for structural brick stitching repairs. High tensile helical rebar is manufactured from corrosion resistant stainless steel. The rein­for­cement stitches cracks in brick walls. 480 x 1m lengths
RRP
£3214.08
Price incl. VAT
£1670.40
Masonry Crack Reinforcement - HD

Masonry Crack Rein­for­cement - HD

8mm & 9mm - Heavy duty masonry stitching bars for crack reinfor¬­cem¬­ent & wall repairs. Bars have a tensile strength of 12kN+ & 15kN+ respectively Pack of 10
RRP
£103.61
Price incl. VAT
£79.80