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Re: Testing for Anchor Bolt Embedment

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        As an additional thought to add to my previous posting (inspired by James' suggestion), you might be able to do a pull test to see if they holds 1.1 to 1.25 (as you see fit, or as your applicable code requires) of your maximum required design load.  After all who cares whether the bottle is half empty or half full as long as there is enough left to satisfy your thirst?

Regards again,

H. Daryl Richardson

"Lutz, James" wrote:

 If it's a wedge anchor, maybe you could drill one out and see what you've got. (See attached link). You might also be able to do a pull test on one without removing it.
-----Original Message-----
From: THunt(--nospam--at) [mailto:THunt(--nospam--at)]
Sent: Tuesday, December 10, 2002 2:09 PM
To: seaint(--nospam--at)
Subject: Testing for Anchor Bolt Embedment

I am reviewing the anchorage of a hospital emergency generator with 40 - 3/4 inch diameter cast-in-place anchor bolts but the drawings do not show the embedment depth.  Does anyone know of a field test to determine the embedment depth?  I am thinking there must be some type of sonic test that could measure the rebound and determine the bolt length.  Any ideas?

Thomas Hunt, S.E.
ABS Consulting