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RE: A15, intermediate grade reinforcing

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I'd wager that this is a typo, and it really means A615 reinforcing, which doesn't really tell you anything since it can be Gr. 40 or Gr. 60. At that time Gr. 40 was often used, esp. for stirrups, etc., with "main reinforcing" being Gr. 60.
Yes, we have easily been using A615 for more than thirty years.

William L. Polhemus, Jr., P.E.
Polhemus Engineering Company
Katy, Texas
Phone 281-492-2251
Fax 281-492-8203

-----Original Message-----
From: HAWNENG(--nospam--at) [mailto:HAWNENG(--nospam--at)]
Sent: Monday, August 06, 2001 9:25 PM
To: Seaint(--nospam--at)
Subject: RE: A15, intermediate grade reinforcing

Our office is investigating an the load capacity of an 8 inch thick
reinforced concrete floor slab.  The floor slab is in a sanitary sewer lift
station.  The plans are dated 1970 and specify A15, intermediate grade
reinforcing.  Can someone tell me the yield stress for this specific