USA Dust Guard - Dust Control Equipment & Supplies.

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Anchors   >   Helical Wall Ties, Masonry Stitching Tie
 

Masonry Crack Stitching

Helical Stainless Steel Reinforcement Bar

Pricing / Ordering
- See Below -

 

Helical Stitching Bars

 

Pre-Existing Wall Ties
--- their failure can cause
cracking, leaning & bulging walls.

 

Masonry Crack Stitching
--- 1/4" x 40" Stainless Steel Helical Tie

Helical stitching ties, with double the strength of rebar, are used as reinforcement bars to repair and stabilize cracked masonry.

The crack stitching method rejoins the fractured segments of the wall and disperses the building load across the structure while providing resilience against further cracking.

Cracks in building walls aren’t just unsightly, they can be warning signs of structural problems.

Cracks in brickwork occur when there is a build-up of stress in the wall.

Stress may be caused by normal thermal or moisture movement or by support failure.  In either case, once the cracks in brick or block are stitched, the stress is relieved.

 

USA Manufactured ---- Superior Design, Quality & Installation
--- USA Made Helical Stitching Bars

  1. Made from select USA grade stainless steel
  2. USA Quality Control & Assurance:
    • All materials are checked to be sure that they meet exact design specifications and tolerances
    • Each work station is also a quality control check point for the previous work step
  3. Liability Protection - from a USA Manufacturer - for the Architect, Contractor, Engineer and Owner:
    • Strict USA Manufacturing Guidelines ensure each tie has the same tensile strength and outside diameter to produce consistent surface contact for the tie's entire length which provides full interlock into both substrates
    • Imported ties, Asian or European, do not have the advanced design, manufacturing tolerances nor quality control to produce exact precision and consistency in helical ties and bars.

 

 

Stitching Bar - installation:

To reconnect the facade, the wall is strapped or stitched 20” on both sides from the center line of the crack.

Horizontal mortar joints are routed out 1-½” deep, cleaned out and filled 2/3 deep with FX263 repair mortar - a polymer modified grout that is specifically formulated to bond with the stitching bar.

Together, they form a HD seal within the joint that increases both the tensile shear and flexural strength of the damaged brickwork.

The stitching tie is pressed into the mortar (right), followed by a troweling of the FX263 mortar to fill the joint.  By virtue of the continuous deep-helix channels, the bar forms a bond within the grout to strap the brickwork on both sides of the crack. The repair is inconspicuous and preserves the appearance of the structure.

 

 

 

Crack Stitching at Corners:

The stitching bars may be pre-bent at 90 degrees so that they can be used as concealed straps for stitching cracks on the corners of buildings.

A series of helical bars, bent at right angles, are placed into routed horizontal mortar joints and bonded with FX263 repair mortar.

The bars form layers of concealed reinforcement, wrapping around the corner to improve support and reinforcement  the wall.

 

Pricing / Ordering
Part Number Size Qty / Unit Price / Unit

HELIST254000

Stitching Tie, 304SS, 1/4" x 20"

10

$209.34

FX-263

Structural Repair Mortar

50# Bag

$ 30.00
FX-263 Rapid-hardening, cementitious, single-component, fiber-reinforced, polymer-modified, silica fume-enhanced with integral corrosion inhibitor
  • Applications:  Designed for vertical and overhead applications:  tunnels, bridges, balconies, parking decks, elevated structures, water treatment facilities and marine structures
  • Key Features:
    • Ready to use - simply add potable water
    • High early strength
    • Excellent freeze/thaw resistance
    • Abrasion resistant
    • Low permeability
    • Shelf Life - one year, unopened package
    • Color - dark gray.
 

 

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  USA Dust Guard
  Div. of Scott Electric
  24 39th Street
  (Lawrenceville, Strip District)
  Pittsburgh, PA  15201

Products for the Concrete, Masonry & Highway Trades.

--- Div. of Scott Electric USA ---

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