Need a book? Engineering books recommendations...
Re: Scanning for reinforcing[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: <seaint(--nospam--at)seaint.org>
- Subject: Re: Scanning for reinforcing
- From: THunt(--nospam--at)absconsulting.com
- Date: Fri, 8 Nov 2002 13:15:39 -0800
Your wires are rather small and closely spaced which makes this a difficult problem. If the wires are close to the surface you may have luck locating them with a Pachometer otherwise you would need to use radar mapping. For determining the corrosion level in rebar you can use ASTM C876, "Half-Cell Potentials of Uncoated Reinforcing Steel in Concrete" however I am not sure it works for pre-stressing strands. I do not think you will find a test to determine the diameter of your wires other than taking core samples.
This is one of those problems that is probably best handled by a specialist such as CTL (Construction Technology Laboratories) or WJE (Wiss, Janney, Elstner Associates). I have used them both and they are very helpful. Try giving them a call.
Thomas Hunt, S.E.
|"Wayne E. Beckingham" <wbeckingham(--nospam--at)stroudpence.com>
11/08/2002 09:31 AM
Subject: Scanning for reinforcing
I have a project in which the floor system is cast gypsum slurry reinforced
with draped wire stands supported by a steel beam grid. The wire strands
are 2 twisted No. 12 wires at some spacing (1" to 3" on-center). The slabs
have been exposed to water from a leaking roof. I know that many of the
wire stands in the water damaged areas have significantly rusted.
I am looking for advise on a non-destructive and economical testing method
that will help determine the extent of damage. I am looking for rusted wire
strands. Does anyone have information of a testing method that will
accurately determine area of steel (or diameter) for small wires at a tight
spacing? Any help would be appreciated.
Wayne Beckingham, P.E.
- Prev by Subject: Re: Scanning for reinforcing
- Next by Subject: Re: Scanning for reinforcing
- Previous by thread: Re: Scanning for reinforcing
- Next by thread: Re: Scanning for reinforcing