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Thor Helical Remedial / Structural Solutions
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Revolutionary wall ties - Thor Helical CD Tie

Remedial wall ties for rapid cavity wall tie replacement & brick pinning. Stainless steel helical wall ties are the choice of the professional for tying masonry walls. 

Self tapping 9mm replacement cavity wall ties screw in to brick, masonry or concrete when hammered into pilot holes (circa 6mm) using the impact action of a hammer drill. The Thor Helical CD Tie grips within an interlocking helical undercut. 

Helical brick ties are suitable for remedial use in all wall types without exerting expansive stress on the masonry. The unique driving configuration of the Thor Helical CD Tie delivers a fast, easy and reliable remedy for cavity tie failure. 

Patented Helical Wall Ties with European CE Mark Approval
The new Thor CD Tie Fixing Tool is simplicity itself. An SDS adapter is cut into the tool and the wall tie loads into the rebate

Description

Thor Helical CD Ties are designed by Thor Helical to have longitudinal blades with sufficient reactive interface angle to cut an accurate self tapping penetrative path into a wide variety of masonry elements upon being driven by a series of axial impacts.

Proven through independent testing programs and 25 years of use, helical wall ties are identified in B.R.E.Digest 329 (Table 5) as being suitable for use in all remedial situations, irrespective of the buildings substrate or its fire performance criteria.

The Thor Helical CD Tie has a circumscribed diameter of 9mm and is typically driven into a tiny pilot hole to minimize disturbance to the masonry as installation proceeds at remarkable speed and great simplicity.

  • Reliable in all types of masonry
  • Robust & corrosion free
  • Engineered product upgrade
  • Patented helix consistency

Benefits

The mechanical interlock anchorage of the Thor Helical CD Tie exerts no expansive stress, does not rely on adhesion and is not affected by temperature extremes or fire.

The cross sectional profile of the spiral wall tie includes a wide portion, to maximise grip, and a narrow portion, to accommodate differential movements in all directions. The deep and continuous helical troughs prevent migration of water across the cavity.

When under load, the continuous helical blades interact with the host building material to impart an accumulative cone of forces at tangential angles to the helix.

Loads are spread evenly along the full penetrative length of the tie to ensure reliability of connection in a wide variety of construction materials.

  • Rapid cost effective installation
  • Precise helical interlock anchorage
  • Combines axial strength with flexibility
  • Stable, reliable & unobtrusive

Distinction

Traditional helical wall ties are twisted by clamping one end of the wire & spinning the other. In contrast Thor Helical wall ties are engineered with advanced twisting die technology to accurately control the pitch of the tie.

The advanced precise pitch of the Thor Helical CD Tie (Pat EP1307303) forms tightly mating threads within masonry to ensure a superior interlock performance.

A unique driving end arrangement (Pat GB2439633) permits safe, controlled and close-quarter installation of the Thor Helical CD Tie that allows the operator to maintain both hands on his drill. This eases installation and eliminates the need for cumbersome and expensive telescopic tooling arrangements.

19th April 2011, 12:24
 

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