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Re: Repair of reinforced concrete members.

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On Tue, 7 Oct 1997, Arvel L. Williams, P.E. wrote:
> Gentlemen:
> Any opinions on using Ultrasound transmission for qualitative evaluation
> of repairs.

Use of ultrasound pulse velocity to determine the soundness of 
repaired concrete (patched up sections) can be notoriously 
unreliable.  Unless I have confidence in the person carrying out
the tests, I will use the values with a pinch of salt.


Ravi Sinha, Ph.D.		email: rsinha(--nospam--at)
Assistant Professor		       rsinha(--nospam--at)
Department of Civil Engineering	       Phone: (91-22)-578-2545 Ext. 7336
IIT, Powai, Bombay - 400 076, India    Fax: (91-22)-578-3480, 578-3557