Please note, the order volume has been updated. This is due to package and minimum order quantities. Please note, the order volume has been updated to. Rebar dowels are used to brace the joints between two concrete elements. When the rebar is not being used to hold the concrete members together, post-installed anchor theory can be applied. This eliminates the need to embed the bar deep enough into the base material to develop the rebar for steel failure.
Hilti provides you, the engineer, specifier or contractor, with a complete solution for each phase of the rebar doweling process. Complete your design with adhesive anchor approvals and specification text. Pre-order Nuron Experience the latest cordless innovation. Shipping starts in March. Discover Nuron. An e-mail has been sent to our Customer Service team for follow-up. You will receive a copy of your request for your records. To see account specific prices and content, please choose the appropriate account.
Our executive will call you back shortly. Added to cart. Update quantity. Rebar Doweling Complete solutions for each phase of the rebar doweling process. Specification Resources Rebar Design Center. Rebar Doweling Solutions. HIT-HY HIT-RE HT-HY It can also be done easily with a pair of 9 inch For other applications where the force of the concrete placement may displace the rebars, or where more strength is needed to hold bars in the proper configuration, more complicated ties may be used.
Here are some of them, with a simplified description of how they are made: [4] X Research source Figure 8 ties - These are made by pulling the wire around the rear from the rodbuster bar, diagonally across the front bar, back around the rear bar, diagonally in the opposite direction across the front bar, and then twisting back around the beginning wire.
You then cut the wire feeding off the reel, and bend the cut ends back towards the tie so no sharp ends project from the tie. These ties will help hold perpendicular bars tightly together while helping to prevent them from racking , or moving diagonally. Saddle ties - Similar to the figure 8 tie, you begin by passing the wire feeding from your reel behind the rear bar, then across the front bar staying parallel to the bar.
You then pass it behind the rear bar again, back around the front bar on the opposite side. You now twist the ends together, cut the feed wire, and bend the cut ends back.
This tie is often used when tying rebar for walls or other vertical application where the rodbuster will actually climb on the rebar framework to access higher portions of the wall. The figure 8 and saddle tie can often be interchanged, however, technically speaking, there are advantages to each one in certain circumstances. Combinations of figure 8 and saddle ties with additional wraps around vertical rebars can be used to increase the hold of the tie so bars cannot slip downward when weight is applied to them or the plastic concrete is dropped into the form.
Use your pliers for tying these ties efficiently. For all the above mentioned ties, you pull the feeding end from the wire reel with your non-dominant hereafter regarded as left, please reverse for right handed persons hand. Grip the end of the wire with your pliers in your right hand, and poke , or push it behind the rebar described in the first step of your chosen tie. Bend or angle the end toward the place you will be grabbing the end in the next step of the tie, then reach from that side, grip it again with the pliers, pull it toward the next place you will route it to, pulling enough slack wire to complete the tie.
Hold resistance on the wire with your left hand, so the wire bends snugly against the bar you are wrapping in each stage of the tie. Release the wire so that the pliers can be used to grip it, and do so, pulling the end around the bar and twist the two ends of the wire together. Pull or tug the wire with the pliers so the tie is tight. Tie all the bars required in their correct positions.
Check your plans to make sure each component of the reinforcement is in place. Often, in structural concrete reinforcement, you will find several elements that interface together in addition to the basic rebar mat discussed so far. Here are a few to note: Block dowels - When placing a concrete foundation which will have concrete masonry units block erected on it, you will usually find the plans require installing block dowels, or vertical rebar to reinforce cells at a required spacing to give the subsequent block wall sufficient strength to withstand conditions to which it will be exposed, or to help it support loads it will carry as an overall part of the structure you are building.
These bars are tied to the foundation rebar footing bars in a location that will place them in the center of individual block cells. For them to be placed correctly, you will need to establish the wall line , then determine the spacing of these cells.
If your layout begins at a corner, using 8X16 inch regular block, you can place the first dowel 4 inches For example, at 16, 24, or 32 inch centers. This is known as blockwork spacing. Bulkhead dowels - In instances where a footing will not be completed in a single concrete placement, you will need to dowel out of the bulkhead form so the next placement will be structurally tied to the latter one.
Make sure the dowels extend far enough that the lateral reinforcement will overlap enough to maintain the strength of the rods used. Typically, rebar lap is calculated in bar diameters. An example would be the number 5 rebar mentioned earlier. Note that in structural concrete, other types of imbeds and inserts may be required. Place rebar in such a manner as to allow installation of anchor bolts, sleeves, embedded weld plates, inserts, or other items in their respective correct locations without interference.
In general terms, these items require more precise positioning, so offsetting one or two rebars may be required.
Chair or support your rebar. Once the mat or cage is assembled, you must hold it in position so the the concrete will cover it completely. Rebar chairs or concrete brick are often used for this purpose. Place these positioners at a spacing that will not allow the rebar to bend or deflect enough to reduce the coverage you wish to obtain with the concrete you place in you forms. For a 12 inch Observe the rebar configuration while the concrete is placed.
If shifting occurs, support the rebars with a handled tool like a shovel wedged so that you can achieve sufficient leverage to hold its position, or alter the direction of flowing concrete so force is applied in the opposite direction. Cap or otherwise protect any exposed bars while working near them.
Rebar that is sheared , or mechanically cut has very sharp surfaces at the location of these cuts. Construction workers have suffered serious injuries and have also been killed when they have fallen on projecting rebar dowels.
What do "X" and "Y" mean in rebar terms, for example, x placed every 12" and y every 6"? Instead of creating "squares" of mesh out of the bar, you are creating rectangles 12" long and 6" wide. Yes No. Not Helpful 6 Helpful The edge of your slab should be thicker than the slab; this is called a turn down.
In your turn down, you can have an extra piece of rebar running parallel to your upper rebar mat. If you're pouring a 4-inch pad, the turn down at the edge of the form can be 6 to 8 inches thick, with your reinforcement rebar off the ground. Not Helpful 10 Helpful Can I lay my rebar on the ground without spacers and lift it up with the back of a rake after pouring concrete over it? You should use rebar chairs if you have them.
If you don't, you could use bricks or rocks to elevate your steel, but they could fall over. Normally, the slab bars are tied into the ring beam using a U-bar or L-bar, which also acts as cap for the end of the slab. Not Helpful 5 Helpful 7. What kind of rod do I need to make a column tie whose measurements are 12" by 12"?
It depends on how much load you are going to have bearing down on the column, but you could use anything from a 10mm diameter up to a 32mm diameter rod. Not Helpful 9 Helpful 7. The short answer is generally no. Only rebar with a w stamped on it can be welded. You also must be a qualified a welder and have a procedure planned to weld even these types of rebar.
Not Helpful 6 Helpful 4. There will be a high chance of rebars moving from position during concrete pouring. Reinforced concrete requires the rebars to be placed in the right position to support tensile or compression force. Not Helpful 4 Helpful 5. Natty Natoya. The amount of concrete in a slab equals the length of slab times the width of the slab times the thickness of the slab. Make sure all the dimensions are converted to the same unit.
Not Helpful 8 Helpful 4. Do the steel fixing wires dropped during fixing have to be removed before concrete pouring? It depends. For a footing or other structure being poured on dirt, rock etc, where the bottom is in contact with the ground, no.
However, for cold joints, or for elevated concrete -- where a form will be stripped off of the bottom and the concrete will be exposed -- yes. Not Helpful 2 Helpful 1. Not Helpful 3 Helpful 1. Include your email address to get a message when this question is answered.
By using this service, some information may be shared with YouTube. Six-inch ties are strong enough to hold rebar 4 or 5 during a pour. Be careful when rodding close to the joint; use two ties at 45 degrees on an intersection.
Helpful 0 Not Helpful 1. Double check the rebar placement drawings, especially for dowels, since misplaced dowels must be cut off, and new ones epoxied in the correct location, at considerable expense.
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