Anchor Bolt Repair and J-Bolt Replacement Concrete Repairman®

Stem Wall J-Bolt Repair

When stem wall foundations fail, you can use a repair technique that is called “Stem Wall J-Bolt Repair.” Typically, this involves cutting through the bottom plate of the foundation to access the damaged anchor bolt. Then, a large 3″x3″ square washer is placed to hold down the wall plate. The wall plate is not notch-cut for the square washer. A new wall is a good place to install a J-bolt. You will need another person to help you install the J bolts. In addition, the new wall will require a hole to be drilled into it. The threaded end of the J bolt will then be set into the new wall. Once set, new concrete will be poured over the threaded end. This step is necessary for any wall repair.

In-Service Anchor Bolt Repair

Proper in-service anchor bolt repair can save you a lot of money and trouble than foundation replacement. Not all bolts can be repaired, and not all foundations remain sound with repair alone. Continued inspection is critical to prevent costly failures. Exo offers the expertise and equipment to make the best decision for your foundation. Whether you need a new anchor bolt or to repair an old one, Exo is equipped to handle both types of projects.

Concrete Anchor Bolt Replacement

One of the most important elements of tubular steel poles is the anchor bolt. Steel caisson and drilled concrete pier foundations are particularly vulnerable to anchor bolt failure. Moreover, dead-end and angle structures face additional load and stress. Thus, regular inspection and maintenance are important. Often, minor corrosion is sufficient for removing it, but if left unchecked, it will result in concrete anchor bolt replacement.

Before attempting a concrete anchor bolt replacement, it is important to understand how the existing bolt is attached to the foundation. The old bolt will serve as a guide for the Plate Cutter and must be used with constant pressure. A 1″ steel plate will take approximately three to five minutes to drill through. Alternatively, a Bolt Extractor Bit can be installed over the existing bolt. This tool can drill through concrete and steel plates.

Replace Rusting J-Bolt in Foundation Wall

If you’ve noticed that a rusting J-Bolt is protruding from the foundation wall of your home, you should consider replacing it as soon as possible. While this repair is relatively easy, it can also be a safety issue if the rusted bolts let water in. In most cases, the rusted J-Bolts are hidden under stucco or drywall.

The foundation anchor bolts can begin to rust before the construction of your home is completed. While light rust is not a problem, it is necessary to prevent a corrosive condition from occurring. The nut will become rounded if the rust is severe, and it may seize onto the rod. In addition, the washer may also become loose. All of these issues should be addressed immediately.

JBolt Replacement Parts

When the anchor bolt is broken, the best method to fix it is to replace it with a new one. In this process, you will need a new bolt, a pressure disc, a busher, and the coupling. These parts are all included in a kit, which will allow you to fix the anchor bolt with minimal downtime. Whether you choose to replace a broken anchor bolt yourself or hire a contractor to do it, you will want to get the right part to make the job go as smoothly as possible.

Before attempting to repair a damaged anchor bolt, you will need to know the exact size of the bolt. Fortunately, the process is fairly easy. If you are doing it yourself, you can use a template made of plywood to help you with the process. Be sure to mark the bolts’ locations in relation to the foundation. Once you have all the necessary parts in place, it is time to test the anchor bolts.

Anchor Bolt Repair – How to Repair and Replace Rusting JBolt Stem Walls

There are several types of anchor bolt repair, and each has its own pros and cons. Listed below are two common methods. Neither has been proven to be

equivalent, and the resulting repairs may differ in their ease of application and load carrying capacity. Nonetheless, repairing anchor bolts may be a more cost-effective and reliable option than replacing them. To learn more about these repair methods, read on! Then, ask your structural engineer for recommendations.

The anchor bolt repair coupling comprises a threaded portion and a base with an internal chamber. This threaded portion is connected to the anchor member through the anchor bolt repair coupling, and the anchor member engages the grips located within the chamber. A hardening compound, such as CeilCote 647 R, is injected through an injector port that is positioned in the coupling’s wall.

Another type of anchor bolt repair involves a re-threaded section of the anchor member. This section extends above the foundation base and is screwed in with an appropriate grout or epoxy. Previously, a skilled artisan had to manually repair the threads in the field, a method that can take hours to complete. The new method is far less invasive and requires less equipment and less time. It also eliminates the need for the foundation to be removed and replaced altogether.

Another type of repair is called a “field cut.” This method involves cutting the steel base plate to accommodate the misplaced anchor bolt. To do this, the engineer must decide on the proper pattern and plate for the anchor bolt. Another method involves removing the base plate from the column. These procedures require a skilled and professional engineer to determine the location of the bolt in the column. After the correction, the anchor bolt must be installed correctly and checked.

The method described in this patent involves disengaging all but a short stub of exposed anchor member and engaging the grips of the repair coupling against the failed anchor member. A secondary anchoring member can also be used, but this requires additional expense. The resulting repair process is more cost-effective than replacing the anchor member altogether. The patent-pending method is a valuable addition to any commercial dock. In addition to the above, it can also improve the overall strength of the anchor member.

The preferred embodiment of this invention comprises an anchor bolt repair coupling having a substantially cylindrical body with a gripping chamber on one side. The failed anchor member extends into the internal grip chamber. Then, a cap is used to attach the repair coupling body 10 to the anchor member. This assembly then lowers onto the failed anchor member. The engaging means 20 are placed against the top surface of the individual grips and forces them downward into the internal passageway. Moreover, the internal tapered surface 21 acts as a gripping surface against the failed anchor member.

An improved anchor bolt repair coupling has a chamfered end, which allows engaging means to forcefully engage with the grips of the failed anchor member. The grips are held in place by rubber bands. Then, the replacement anchor member 7 is threaded through the threads of the cap. Alternatively, the chipped region 4 can be filled with a suitable material. Once this process is complete, the repaired anchor member 7 can be installed in the damaged structure.