The galvanised coating is suitable for most outdoor applications. Please see below table on each item for grip range, drill size and hole depth.ĭrilling and Fixing Information for Through Bolt - Galvanised - Grade 6. The Through (Thru) Bolt / Wedge Anchor is ideal for attaching steel components to concrete such as ledger angle, wall ties, support brackets, props and timber beams to concrete. The design gives high tensile and shear performance, with simple installation and instantaneous load capability. This multiplicity of formulations and the wide variations in such parameters causes huge confusion among users so the best advice for contractors is to recommend that, as far as possible, they should choose one system that suits their uses and stick to it and have their installers trained in the correct installation methods for each different resin system they use.Through (Thru) Bolts / Wedge Anchors are anchors designed to fix a component to concrete and offers the advantage of needing the same clearance hole diameter as the drill hole. Then there are resins that may be installed at temperatures as low as -20☌ while others are ‘OK’ in hollow masonry down to -5☌ but limited to above +5☌ in solid masonry. They have special characteristics for uses like rebar anchoring, which justify having to wait this long. At the other end of the scale pure epoxy resins can take between 170 hours and 7 hours over the same temperature range and some won’t cure below +5☌. Entuit Secure Adjustable Gastrointestinal Suture Anchor Set, GIAS-SRM-ADJ-3. Some manufacturers have developed faster curing systems bringing curing times for capsules (for use with special anchor rods in cracked concrete) down to as little as a matter of minutes and injection systems, for general purpose anchoring, to half the standard times – while still being slower than standard capsules. An injection resin of the same basic resin may take typically four times as long. Designed for use in solid substrates requiring threaded rod or machine bolt to set. Macloc anchors are medium duty expansion anchors with internal thread. Suitable for concrete, brick, block and stone. A typical capsule anchor will take between 4 hours at -5☌ and 10 minutes at +20☌ (base material temperature). Follow up expansion in case of overloading. The curing time is the other bugbear of resin anchors whereas mechanical anchors may be loaded immediately. Apart from cleaning the hole this makes the whole process safer for the installer and bystanders as it prevents airborne dust, which can cause silicosis. One approach that safely avoids the need for separate hole cleaning operations is the adoption, by some manufacturers, of hollow drill bits which, when attached to a vacuum, will suck the dust from the hole as it is generated. Now however there are capsule anchors – with ETA – which require blowing only, but useful as this progress is, until all capsule anchors have this capability the best approach when training installers is to stress the need for thoroughly clean holes for all systems. The brushing bit removes the dust sticking to the sides of the hole. However, best practice has, until recently, dictated that holes for resin anchors should always be thoroughly cleaned out using a process of both blowing (or vacuuming), brushing and blowing. 1420, 4010651, CPT C1713, ANCHOR SUTURE 4.75MM 19.1MM SWIVELOCK C. Capsule systems have always been less sensitive than injection systems to poor hole cleaning as the spinning action, together with the chunky aggregate, tends to draw some of the dust left on the sides of the hole into the mix, whereas injection systems simply lay the resin against any dust left behind. Manufacturers have been working hard on these aspects. They are much more sensitive to poor hole cleaning than mechanical anchors and must be allowed to cure before they can be tightened or loaded. Probably the major disadvantages with resin anchors are to do with their installation.
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