How To Install Anchor Bolts In Wet Concrete

Red Head® Wedge Anchor Installation

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The installation of Red Head® wedge anchors is fairly simple and straightforward. Some of the factors that must exist taken into consideration before...

Anchor Types

The Red Head® wedge anchor is manufactured in different materials and plated differently to meet different awarding requirements. If the application is indoors with no wet present then the zinc plated Red Caput® wedge anchor tin be used. In applications where moisture is present so the hot-dipped galvanized should exist considered. The 304 stainless steel may be the all-time choice when the ballast volition be in wet environments. For applications where the Red Head® wedge anchor is submerged in chemicals and h2o, the 316 stainless steel Ruby Caput® wedge anchor may be the best choice.

Wedge Anchor Diameters

The diameter of wedge ballast chosen for whatsoever item application depends on holding value requirements and the size of the hole in the fixture that is existence fastened. An engineer that has calculated the values needed to correctly determine the specific diameter of Red Head® wedge anchor to use may specify the holding value requirements. If the item that is being fastened has holes in information technology for attachment, the Red Head wedge anchor chosen must fit through the holes. If the Cherry-red Head® wedge anchor is installed with the fixture in place, it is important to know that the diameter of the Redhead wedge anchor is larger than the designated bore. In other words, the wedge anchor measures larger than the diameter that information technology is chosen. For example, a iii/8" Red Head® anchor will require a 7/sixteen" hole in the fixture for it to exist inserted through the hole while the fixture is in identify. Even though the working office of the Reddish Head® wedge ballast is larger, the threaded part of the anchor is equal to the designated diameter, i.e., a 3/8" Ruby-red Head® wedge anchor uses a 3/8" nut.

Depth of Embedment

Each diameter of Cerise Head® wedge ballast has a specific minimum embedment depth for which it must be installed in the physical in order to see the minimum belongings values. This minimum embedment is the distance that the anchor body is installed in the concrete after the Ruby Head® wedge ballast has been expanded. Embedment depth at less than minimum embedment will decrease the holding values, or result in no holding values at all.

The minimum embedment depths for the Red Head® wedge anchor are as follows:

Carmine Caput® Wedge Anchor Bore	Minimum Embedment Depth
ane/4"	1-one/8"
3/eight"	ane-1/4"
one/2"	2-1/four"
five/8"	2-3/iv"
three/4"	3-1/4
seven/8"	three-3/4
1"	4-ane/ii"

The Ruddy Head® wedge anchor tin be installed at deeper embedment depth than the minimum embedment requirement. Deeper embedments in well-nigh cases will result in greater holding values. Better property strength will be reached when rebar is present and the embedment of the Red Head® wedge anchor is by the rebar. There are two important facts that must exist taken into consideration with respect to deeper embedment depths. The thickness of the concrete is important considering the Scarlet Head® wedge anchor should not be embedded within a minimum of v anchor diameters from the unsupported edge of the concrete to ensure proper holding values. Deeper embedments require a deeper longer hole to be drilled; the longer and deeper the pigsty so the more hard it is to drill the hole straight. If the pigsty is not perfectly straight then the Blood-red Head® wedge ballast, one time installed, may become to a indicate where it stops penetrating the hole considering it is striking the side of the hole where the hole bends and the wedge anchor does not. At this point, in that location is a problem considering the wedge ballast will not go in whatsoever deeper and cannot be taken out of the hole.

Length

The minimum length of the Red Head® wedge anchor to use in whatsoever item application is determined by adding the thickness of the textile being attached to the minimum embedment plus space for the nut and washer. The space for the nut and washer is equal to the diameter Red Caput® wedge anchor beingness installed. One time this has been figured out, and then a length of Ruby-red Head® wedge anchor that is equal to or longer than the minimum length requirement must be selected. Longer lengths may be used simply considerations must be taken, as previously explained.

Spacing

For each diameter, the Red Head® wedge anchor must be installed a specific distance from each other and from an unsupported border of the concrete. In that location are a number of unlike categories in addition to edge altitude that are required to obtain maximum working load: minimum edge distance at which load gene is equal to 60%, minimum edge distance at which the load factor is equal to twenty%, spacing crave to obtain maximum working load and minimum allowable spacing betwixt anchor with a load factor equal to 40%. What the charts show is that the closer the Redhead wedge anchors are to each other or closer to an unsupported border then the less the holding value. The full and complete chart can be viewed at Recommended Border and Spacing Distance Requirements for Shear Loads.

ITW Red Caput® Wedge Anchor Installation

The following installation instructions are taken direct from the education folio on the Red Caput® wedge ballast web page at ITW Cerise Head, and show exactly what the manufacturer states to be the right method of installation.

Select a carbide drill bit with a diameter equal to the anchor diameter. Drill hole to whatsoever depth exceeding the desired embedment. Come across chart for the minimum recommended embedment.
Make clean the pigsty or continue drilling additional depth to accommodate drill fines.
Assemble washer and nut, leaving nut flush with the finish of the anchor to protect threads. Drive anchor through the material to be fastened until the washer is flush with the surface of the fabric.
Expand anchor by tightening nut three-5 turns past the hand tight position, or to the specified torque requirement.

physical Fastening Systems, Inc Installation Instructions

Using a hammer drill that is set up in the hammer and rotation way, with a carbide tipped bit that meets ANSI standards and is the same diameter every bit the Cherry-red Head® wedge anchor being installed, drill a pigsty in the concrete. Drill the depth of the hole slightly deeper than the expected embedment depth called making sure that the minimum embedment depth for the diameter of Red Head® wedge ballast is met.
Clean the pigsty out of all dust and debris using a wire brush, vacuum or compressed air.
Install washer and nut onto the threaded stop of the Blood-red Caput® wedge anchor, leaving the nut affluent with the height of the anchor trunk. This will protect the threads during installation.
Insert Red Caput® through the fixture be fastened and into the hole in the physical, using a hammer strike the nutted stop of the Ruddy Caput® wedge anchor until the washer and nut are tight against the surface of the fixture.
Finger tighten the nut so with a wrench turn the nut clockwise 3 to 5 full turns or until the specified torque values for the diameter of Ruby Head® wedge anchor is reached.