When and why is a pull test recommended?
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&#;We&#;re strong advocates for pull-testing on every wall we anchor, or pin, for a couple of reasons. One is that facade stabilization comes with life safety ramifications, and we take that extremely seriously. Also, we have third-party laboratory test values for anchoring systems, but when you&#;re working on a retrofit or post-installed anchoring project, the conditions can vary widely from one building to the next, and performance may not meet those laboratory values, or they could even exceed our published values. So, based on different variables like the condition of the mortar, brick, or whatever substrate you&#;re anchoring into, as well as the material properties of the substrate itself, the solution may differ from project to project and from wall to wall.&#;
&#;For example, there is always the chance that when you go on a project and install an anchor, the tested laboratory value estimates an ultimate capacity of 500 pounds, but when tested on-site it has a capacity of 50 pounds. In this case, clearly, you would need a different solution and you could work your way up from there to choose something that&#;s more appropriate for that project. In some cases, that could mean modifying the installation via drill type (SDS+ vs 3-jaw chuck hammer vs core drill), drill method (rotary-only vs rotary-hammer), or pilot hole size. In other cases, the type of anchor could be changed, either by increasing the anchor&#;s diameter and in turn its engagement into the substrate, or by switching the style altogether, say from a hammer-set Stitch-Tie helical anchor to an adhesive-style Grout-Tie, or even to a mechanical expanding fastener such as the Grip-Tie product line. Each of these has its own pros and cons, and a cost-benefit analysis could be done to find which anchoring solution is most appropriate for each project.&#;
All would agree safety is a top priority around any build, which is why it is imperative to regularly check your fastenings. There are too many things that can affect the strength and durability of anchors, scaffold ties, threaded studs and other load bearing fasteners. When these fastenings cannot be checked visually, it becomes even more important to have the correct tools to check the safety of these fasteners.
For anchor bolts, eyebolts, scaffolding and threaded rod embedment, the best way to test the fasteners strength and durability is by performing a pull test. And the best way to perform a pull test is with a pull tester.
What Is a Pull Test(er)?
For those that do not know, pull tests are tests run to challenge the strength and durability by providing pullout resistance results of a fastener. This is done by attaching a pull tester to a fastener, typically a screw, bolt or threaded rod to designate stress load level.
By testing the maximum stress level of the fastening, one can determine how strong and secure the entire job is. This in turn allows for a diagnosis of the potential strength and durability of your building, scaffolding or fastening alike.
Why Should I Pull Test?
Safety. It&#;s that simple.
Are you interested in learning more about Bolt Pull Test? Contact us today to secure an expert consultation!
Conducting a pull test helps to minimize the chance of your build&#;s construction malfunctioning, by checking each fasteners strength and durability. It goes without being said that if a series of bolts are unchecked and in turn fail, potentially the entire structure could be destroyed.
You may be saying to yourself, &#;the bolts are fine, they are designed to withstand great stress.&#; That is correct, bolts, screws and threaded rods are designed to provide excellent pullout resistance, but damage caused by varying temperatures could cause them to become weak or loose.
Besides ensuring safety and durability on your jobsite, pull tests are simple to conduct and take little to no time to get your results.
Take Matters into Your Own Hands
There are generally two ways to have a pull test done on your site: hire a third party to come in to do it or do it yourself. Most jobsites will have more than one anchor to be tested, meaning when you hire an outside company to perform a pull test you most likely need to pay for a bunch of tests. This adds up fast.
Pull testing can be performed by just about anyone. There are no certifications required to perform the test, the only thing needed is the knowledge of what you are testing for. In short you are paying for the tool instead of the service, but the tool is not yours to keep.
Don&#;t waste your budget, invest in your company by saying no more to outside certifications and get your own pull tester from Allfasteners. Allfasteners only carries the very best in pull testing products from Hydrawjaws®. For decades, Hydrajaws® has developed portable tension testers to check for the crucial holding force of anchors and other fixtures in construction materials. Now, these reliable tension testers are available at the place for all things fastening, Allfasteners.
For More Information, Contact Allfasteners
For more information regarding pull testing and pull testers, contact one of our representatives today by calling 888.859. or via .
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