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RE: New Steel to Existing Concrete

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Title: New Steel to Existing Concrete
Most of the time is possible to cut the existing rebar without affecting the performance of the old structure. But I must admit that is very time consuming.
There is an alternative wich is a Rebar Locator, is an ultrasonic device that detects the size and location of the rebar with good results.
I don´t have the information on how to get it but I think you you can find it on the Net. 
Best Regards: 
Ing. Vincenzo Valerio
******************************************************
Enmar Representaciones y Asesorias, C.A.
Caracas, Venezuela.
Tel: 58-2-238-5253 ; Fax: 58-2-237-1101
E-mail: enmar(--nospam--at)etheron.net
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-----Original Message-----
De: Robert Rollo <rrollo(--nospam--at)TEAM-PSC.com>
Para: 'seaint(--nospam--at)seaint.org' <seaint(--nospam--at)seaint.org>
Fecha: Miércoles 17 de Febrero de 1999 12:36 PM
Asunto: New Steel to Existing Concrete

every time we try to connect new steel beams to existing concrete columns or beam, the driller will hit rebar despite all detailing and layout efforts to the contrary.  obviously, upon hitting rebar, the contractor calls for guidance, we attempt to determine adequacy of the member with interupted reinforcing, etc. etc.

anyone have better solution to this age old delema ? short of don't connect new steel to old concrete ?

am i missing something so obvious it is slapping me in the face?

can i prevent the phone calls next time ? or am i forced to accept this as a universal constant ?

thanks in advance for any thoughts . . .

robert d. rollo, PE
Corporate Associate
rrollo(--nospam--at)team-psc.com
(806) 747-0161vox
(806) 747-7146 fax