To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
Subject: RE: 1950 Rebar
From: "Sprague, Harold O." <SpragueHO(--nospam--at)bv.com>
Date: Fri, 16 Mar 2001 07:38:39 -0600
Ah yes an opportunity to blow off a little dust from my books and from
between my ears.
The ASTM Designation for this steel is A15. Bar was provided as plain or
deformed. Either were broken down into 3 grades of steel with properties
Grade: Structural Intermediate Hard
Tensile strength (ksi): 55 to 75 70 to 90 80
Yield point (ksi): 33 40
Allowable str. (ksi): 16 18 18
They could also be Rail Steel A16 which would have the same mechanical
requirements as the A15 Hard.
Harold O. Sprague
> -----Original Message-----
> From: Tom.Hunt(--nospam--at)d-fd.com [SMTP:Tom.Hunt(--nospam--at)d-fd.com]
> Sent: Thursday, March 15, 2001 5:11 PM
> To: seaint(--nospam--at)seaint.org
> Subject: 1950 Rebar
> I am working on rehabilitating a 1950 concrete seawater intake structure
> that was designed per the 1946 Uniform Building Code. The drawings call
> out for either 2500 psi or 3000 psi concrete and the rebar is called out
> either square bar for deformed round bars. Does any know what rebar
> were used in this time period? I know 40 ksi rebar has been around for a
> long time but as grey as my hair is this is before my time. I might add
> that this structure is in amazingly good shape with little deterioration.
> Goodos for our fathers and grandfathers.
> Thomas Hunt, S.E.
> Duke/Fluor Daniel