How To Remove Wedge Anchors From Concrete

Wedge Anchor Removal

Purchase Wedge Anchors

Wedge anchors are designed to go into a predrilled pigsty in concrete and not come out. To remove a wedge anchor from concrete...

An important consideration is that when the wedge anchor is pulled to the ultimate tension value, the concrete fails and both the wedge anchor and a cone of physical is extracted. There are only two means to eliminate the wedge ballast from sticking higher up the concrete, which are:

Using a cutoff saw or grinding wheel, cutting the wedge anchor off at the surface of the physical.
Earlier installing the wedge anchor, drill the hole two times the length of the wedge anchor being installed. This will let room for the wedge anchor to be pounded into the concrete and exist flat with the surface of the physical. Recollect, wedge anchors are designed to get into a hole in the physical and not come up out, so information technology is possible for the wedge anchor after it is set, to be pounded into the concrete.

physical Wedge Anchor – Embedment Depth and Tension

Wedge Anchor Bore (in)	Embedment Depth (in)	Torque ft/lbs	2000 psi (Tension)	3000 psi (Tension)
1/four	i-1/8		1170	1771
1/4	1-3/4	five-10	1841	2408
one/4	two-3/4		1975	2748
3/8	ane-1/2		1631	3636
three/8	iii	25-30	3229	5653
3/8	five		4075	6328
1/2	two-1/4		3999	6714
1/ii	4	50-60	6336	8942
1/two	6		6902	10175
5/viii	three-3/4		4999	8747
five/eight	5	75-xc	8854	15590
v/8	vii		9381	16710
3/4	3-1/iv		6638	11314
3/4	six	150-175	10084	18408
iii/4	viii		11170	19805
vii/8	3-vii/8		8392	16354
7/8	5-3/4	200-250	12064	18250
7/8	8-three/4		12784	16850
1	4-1/2		9773	18250
one	7-one/2	250-300	11800	26726
one	10		15590	30491
1-ane/iv	5-i/two		17550	22971
1-1/4	7	400-450	21050	27845
1-1/iv	ten		27893	24788

Holding Values

The wedge anchor is an expansion ballast that creates an outward force against the sides of the hole in the concrete. This outward force transfers the energy to the concrete to create the holding values via friction of the wedge anchor in the concrete. The expansion force is in the shape of a "V" when pictured from a side view. If the wedge ballast is pulled to concrete failure then the concrete pullout volition exist in the shape of a "V" or cone-shaped.

Embedment Depth

The depth of embedment of the wedge anchor into the concrete is one gene that determines the holding values that the wedge anchor will obtain. The deeper that the wedge anchor is embedded into the concrete, then the meliorate the belongings values will exist.

Minimum Embedment Depth

Each diameter of wedge ballast requires that it is embedded into the concrete a minimum distance in club for the wedge anchor to attain its minimum holding force. The larger the diameter, and then the deeper the minimum embedment into the concrete must be when the wedge ballast is installed.

Torque Values

Each bore of wedge anchor has a range of torque values that the wedge ballast must be to reach minimum property values. A torque wrench tin be used during the installation process, or information technology tin can be used to bank check the torque value of whatsoever wedge ballast once information technology is installed.

Different Types

Wedge anchors are manufactured from unlike types of steel, such every bit standard carbon steel, 303 stainless steel, 304 stainless steel and 316 stainless steel. The property values and the removal of the wedge anchor are non dependent on the blazon of steel from which the wedge anchor is manufactured.

Different Manufacturers

Although all wedge anchors piece of work on the same principles, each manufacturer has its own brand names for their wedge anchors. Regardless of whose wedge anchor is existence used, the two methods for removal remain the same. The belongings values, as stated in the nautical chart above, may vary from i manufacturer to another. The nautical chart refers to the wedge anchor manufactured past concrete Fastening Systems, Inc.