Eight standard colors are available to choose from. Our trained and accredited operatives place high tensile stainless steel helical bars within raked out mortar joints at centres and distances determined by our technical staff either side of the crack in the wall, along with specialised grout. The helical bars are made of 304 and 316 Grade Austenitic Stainless Steel. The Thor Helical management team administered the original Patents, which were first filed in 1984 and managed the Licences under which the likes of Brutt, Helifix and Target Fixings were licensed, until the expiry of those early Patents 20 years later. A crack should be monitored for a period of time to determine its cause and to find the appropriate method of repairing it.
The grout is formulated to compensate for the natural expansion and contraction of masonry walls. Get in contact with one of our friendly team members today. Caulking matching the color of the existing brick is applied to the crack to patch and restore the brick original beauty. If you suspect your building has suffered structural damage because of ground movement or load changes affecting the foundations, you need to act urgently to stop things getting worse. The high tensile helical bars combine great axial strength with rotational flexibility to withstand building movement whilst ensuring reinforcement of the cracked wall.
In use the high tensile circa 8kN reinforcing bars redistribute tensile forces along the full length of the helix and provided added resiilience to shear loads to fully restore the stabilised structure to full strength. Thor Helical has formed a crack stitching product development team to progress, nurture and adapt new concepts, techniques and innovations in profiled and twisted wire products in order to address the global drive toward energy efficiency and improved build quality. Please note we always suggest that a structural engineer is consulted to identify the reason for structural movement and advise on the correct solution. The Permagard Crack Stitching System may make up one of a number of solutions that should be implemented to stop structural movement. Helical bar suppliers include Twistfix, Permagard, Screwfix, Thor Helical, Ancon and Helifix. Tensile forces are redistributed along the full length of the reinforcement bars to stabilize and strengthen the wall.
By following this procedure we are able to provide a 10 year insurance backed guarantee for the crack stitching works. HeliBars are bonded into cut slots at pre-determined levels in the masonry using thixotropic cementitious grout, it is the composite action between the HeliBars and that provides the core element of the , making it such a versatile, reliable and successful masonry repair system. Helical Crack Stitching Where buildings have been identified as significant, we at Stronghold Preservation have a range of systems to repair the structural integrity of the building; Crack Stitching Bars is one option. From its widespread and proven remedial applications in existing masonry, where loads are largely indeterminate, the Helibeam System is readily applied to new masonry designs where loads are able to be defined and the characteristics of the masonry can be predicted and controlled. Helical Bars can also be used as part of a Timber Resin Splice to strengthen or repair timber joists.
Earlier days, rebars were used as the stitching bar, but nowadays helical bars are used for such jobs. It sets around the crack stitching bars and develops compressive strength rapidly to prevent axial deflection of the crack stitching bar under load conditions. Please be aware that this might heavily reduce the functionality and appearance of our site. Need a crack stitched or advice on damp proofing? The crack is also deeply filled with grout to restore its strength and to weatherproof the masonry. The joints are then re-pointed. Permanent solution that restores the original aesthetics of the building and reduces likelihood of further cracking nearby. Crack stitching kits are inexpensive and resist further damage to the wall.
For further information please read our guide to. Thor products are used across the globe in both new build and refurbishment market sectors. Thor Helical has formed a product development team to progress, nurture and adapt new concepts, techniques and innovations in profiled and twisted wire products in order to address the global drive toward energy efficiency and improved build quality. Helical bar installation is straight forward. The other end is allowed to move freely by inserting it into a sleeve which is bonded into the masonry.
The bars can be supplied as part of a Crack Stitching Kit or supplied on their own in a range of sizes. Crack stitching bars provide a permanent solution for masonry repairs and cracked wall reinforcement. Twistfix supplies a range of masonry reinforcement products including stainless steel helical bars that stitch across the fractures to strengthen and repair cracks. A horizontal channel is cut in the masonry in the bed joint, usually at 300mm intervals along the height of the wall and the crack height. Click on the different category headings to find out more. It will not cure the cause of the crack e. If you do not want that we track your visist to our site you can disable tracking in your browser here: We also use different external services like Google Webfonts, Google Maps and external Video providers.
Demands for continuous improvements in performance and adaptability combined with development of safer, environmentally friendly and more cost effective working systems have led to production of an improved second generation range of helical fixings, ties and reinforcement bars within the comprehensive Thor Helical offering. Longer lengths are used, normally in pairs, to form masonry beams that secure large areas of masonry, distributing the structural loads and overcoming various problems caused by foundation movement. Ensure the mortar is completely removed to reveal the top and bottom faces of the masonry. In instances where the building has become beyond repair, our structural engineers are able to design temporary propping schemes which will allow the affected areas to be demolished and rebuilt. The helical bars are bonded into place using a cementitious masonry repair grout such as Thor Helical Rememdial W 60 Flexi-Grout.
Use the finger trowel to disguise the slot. Stitching offers a quick, easy and reliable method of restoring the structural integrity of cracked walls at cost effective prices. The works will then be undertaken by are fully trained staff who are Thor-helical approved installation contractors. When repairing a crack in a wall or timber with a helical bar it is important to obtain professional advice from a structural engineer to ensure the work being carried out is appropriate. It is a sustainable solution preferred by Architects and Engineers that prevents disruptive taking down and rebuilding. Tel: 201 880-8819 Email: Support thorhelicalusa. You will not be subscribed to any lists and your email will be deleted from our website 30 days after the last contact we receive from you.