Pack of 10 x 6mm x 1 Metre Stainless Steel HELICAL Bars for Repairing Masonry Walls

Product Information

Polyester or epoxy resins are brittle once set and may cause sudden breakage of the beam when overexerted; they also have a mismatch of thermal and moisture movement characteristics that makes them less effective. How do you fixhelical bars into an existing wall to form a lintel? We have broken down the installation into simple easy to follow steps. The installation method outlined below applies to both window and door lintels. It is strongly recommended that you install helical bars at two levels above the failed lintel. Push the helical bar firmly into the grout to around two thirds of the depth of the slot. Make sure that the bar extends 500mm either side of the window or door. Helical bars are extremely versatile - they can be cut to any length and bent to form the required shape. We recommend fitting them with Easi-Fix 2C cementitious grout or the PermaCEM Anchor Grout. Helical bars are a proven way of increasing the tensile and flexural structure of masonry walls.

Brickfix Helical Bar 1m x 6mm | Toolstation

Helical bars are buried into slots made in the wall surface. The slots are typically orientated horizontally along the face of the wall and the bars are bonded to the masonry using a high performance polymer modified grout. What are the applications for helical bars? With the addition of a second bar, the stress forces that act on the lintel are further redistributed. The tensile strength exhibited by a lintel reinforced with a helical bar surpasses the alternatives, often many times over. With the lintel restored, you remove the risk of the lintel failing and any dangerous repercussions. Installing Helical Bars for Lintel Repairs The primary component of a masonry stitching kit is the helical stitching bars. These bars are often made of stainless steel and are twisted - helical refers to a spiral shape - to provide extra strength and flexibility. The Helifix HeliBar is a helical stainless steel reinforcing bar, with substantial tensile properties, used for strengthening and stabilising masonry in both new build and remedial situations.

Helical bars for masonry repairs & reinforcement

Push the second bar into the grout, reaching around 50% of slot depth; this should always be at least 10mm from the first bar. Once again, trowel any excess grout to ensure full encapsulation of the rod.

Helical Bars - Helical Bar Reinforcement For Masonry - Permagard

We recommend thixotropic WHO60 ®, which is a cement-based grout featuring added polymers.The BRE Load Tables are specific to the proprietary helical bars tested and bonded into walls with this purpose-made mortar. Shrink-compensated, the grout effortlessly bonds the bars to the masonry, setting in and around the deep troughs of the helix and delivering compressive strength combined with some flexibility, which safeguards against sudden failures when overloaded. Helically twisted masonry reinforcementrods have for 30 years been used in the structural repair sector of the UK building industry; but do you know whether Helifix Helibars or Twistfix bars have been used? The original Helibars were invented and patented by Twistfix Director WilliamOllis, whorecentlyre-engineered his invention. These upgraded Twistfix bars are produced with a greater degree of product consistency to improve upon the performance of the early Helifix product. A particular advantage of helical stitching kits is their ease of application. Helical bars can be inserted into existing masonry with minimal effort or disturbance, providing excellent strength while leaving no visible mark on the wall’s exterior. Twistfix only supplies helicalbars produced with this advanced engineering.The upgraded bars areproduced in the UK's only manufacturing facility that, under one roof,takes in round wire and sends out finished helical products. Other manufacturers merely part-process pre-shaped wire thathas been cold roll-profiledby a third party. Helical spiral bars also provide extra strength in footings, parapets and retaining walls. They can be used during new construction or remedial work in existing buildings.Mix the powder and liquid components of WHO-60 grout and load the mixture into an applicator before pumping a bead of the specialist grout from the rear of the slots and fill them half to two thirds full. In this article, we're sharing read on for more information on the several types of helical bars available and their different purposes. Below are the most common helical bars used for construction and structural repair purposes. What are Helical Spiral Bars? YOU SHOULD REPEAT THIS PROCESS FOR THE SECOND LEVEL. THE SECOND LEVEL IS CREATED BY CUTTING ANOTHER SLOT FOUR COURSES ABOVE THE FIRST USING EXACTLY THE SAME METHOD. Our UKCA and CE Mark bars comply with BS EN 845:1 for strengthening masonry. The reinforcement resists tension loads of at least 8 kN.

Helibars or Twistfix bars, supplies helical bars Helibars or Twistfix bars, supplies helical bars

Once correctly installed, helically twisted bars provide strong reinforcement to fortify lintels and give a property a new lease of life. Installation is complete in seven easy steps, which are listed below. General builders are able to buy Twistfix helical bars in a wide range of lengths and diameters; all with improved product tolerance and consistency. Helical bars have great axial strength when grouted into walls. They are able to spread loads and accommodate natural and cyclical movements within a building whilst holding the components firmly together.The reinforcing bars are generally concealed within mortar beds to disguise installation. Push a helical bar into the incision about three-quarters deep. Ensure the grout encapsulates it and compress any grout that has been displaced. The Easi-Fix Helical Drive Tie has been labelled as the more reliable and faster way to tie facades together. The ties can also be installed through cavity wall insulation, providing high strength and flexibility. Although the job may sound expensive, the installations costs are relatively low.The helix shape rod is excellent for bed joint reinforcement. The helix's peaks and troughs boost the bar's grip in mortar. Helical bars are helpful for various masonry repairs. Insert a further bead of HeliBondover the exposed HeliBar, finishing 12mm from face and ‘iron’ firmly into the slot using the HeliBar insertion tool Insert a second helical bar into the incision about halfway into the incision. Ensure a 10mm gap between the two bars.

Bars | 6 mm x 1 m - Twistfix Crack Stitching Kit | 10 Bars | 6 mm x 1 m - Twistfix

The bars are completely versatile and can be cut to any length and bent into any shape. Fitted with either polyester resin or cementitious grout, both techniques will help increase the tensile and flexural structure of the masonry wall. Easi-Fix Helical Drive Ties Where timber lintels are used, often in older properties, you are at risk from wood rot (wet and dry) as well as wood boring beetles. This can affect the structural integrity of the timber and mean that need you to replace or repair them using helical spiral bars as outlined in this guide. Clear all loose debris from the newly chased apertures and use clean water to ensure they are thoroughly flushed out and wet-down before installation of the grout. Wetting the masonry reduces suction of the liquid from the grout.Helical bars when used for lintel repairs are available in three and seven metre lengths. These longer lengths allow the bars to extend beyond the window or door by the required 500mm. You can also cut the longer lengths to the exact size required. The best way to do this is with an inspection to appraise if there are sufficient walls ties. With a cavity wall, you should be able to carry out a visual inspection, looking between the inner and outer leaves. If you are unable to get a good view of the existing wall ties and their frequency then you canuse a metal detectoror an endoscope camera. Twistfix helical bars are bonded into slots that have been cut at pre-determined levels within the masonry. In the longer lengths they are used mostly in lots of four, two rows each with a pair of bars, to form the upper and lower flanges of a deep masonry beam which will carry quite a large area of masonry above an unsupported area. It does this by redistributing the load placed on the structure to solve any problems which may have been caused due to localised structural movements. At Permagard, we’ve been manufacturing innovative structural repair products for over 25 years. As an independent helical bar manufacturer, we work hard to remain market leaders and ensure compliance with all standards. Apply a second bead of anchor grout into the slot, making sure that the first bar is completely covered. Trowel away any excess grout before adding the second helical bar. This bar should reach around half the depth of the slot and be at least 10mm from the first bar.