WEST ORANGE, N.J., May 24, 2016 /PRNewswire/ -- Anchoring to asphalt has come of age. The conventional wisdom holds that the only way to attach anything securely to asphalt is by replacing the asphalt with concrete. Yet the Asphalt Anchors Group (AAG) has developed an economical and reliable way to attach structures directly to asphalt, at a fraction of the cost of concrete. Even in thin asphalt (2"), the pull resistance is up to 2,500 lbs.; more in heavier asphalt. With 10 years of field experience, the technology is ready to go mainstream.
Why Asphalt is so challenging
Asphalt "creeps" under sustained force. This rules out the use of the common wedge anchors used on concrete as these anchors expand in the hole and rely on the pressure against the walls to create friction that jams the anchors in place.
The continuous pressure exerted on asphalt walls by expansion anchors causes the asphalt to flow, and the anchors will lose their grip in a matter of hours or a few days.
A New Type of Anchor
The special-purpose BoltHold anchors are installed flush with the asphalt surface. An internal thread accepts a bolt that is used to attach the structure to the anchor. The anchors are available with either 3/8" or 7/16" threads.
The anchors bond to asphalt using an epoxy or cement (generically called "grout"). An oversize hole is drilled in the asphalt, is filled with a fast curing grout, and the anchor is dropped in. The displaced grout is pushed into the crevices in the asphalt and in the gravel layer below. Thus the grout binds to the anchor on the one side, and to the asphalt on the other side. This bond is stronger than the asphalt around it. The anchors and the asphalt are now one without stress, and the passing of time will not weaken the bond.
Mount anything from runway plane arresting systems and jet blast deflectors to signs, bike racks and car ports.
Mr. Rudor (Dori) Teich is the president of Asphalt Anchors Group.
He can be reached at (973) 669-8214 or e-mail
For: Asphalt Anchors Group
A Division of Designated Parking Corp
10 Ridge Road
West Orange N.J. 07052-4018
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SOURCE Asphalt Anchors Group