Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

Re: Modulus of Elasticity for concrete

[Subject Prev][Subject Next][Thread Prev][Thread Next]
In fact that is the same formula from Section 1102 of ACI 318-63.

So why is this an issue?

Neil Moore, PE, SE

neil moore and associates
consulting structural engineers
shingle springs, california
530 677-4308
nma(--nospam--at)nma-se.com

On 6/7/2015 1:16 PM, Rizwan Mirza wrote:

Following are the provisions of ACI 318-05 and ACI 318-05M:

ACI 318-05
8.5.1 — Modulus of elasticity, Ec , for concrete shall be permitted to be taken as wc^ 1.5 x 33 (fc')^.5 (in psi) for values of wc between 90 and 155 lb/ft^3. For normal weight concrete, Ec shall be permitted to be taken as 57,000 (fc')^.5.

ACI 318-05M
8.5.1 — Modulus of elasticity, Ec , for concrete shall be permitted to be taken as wc^ 1.5 x 0.043 (fc')^.5 (in MPa) for values of wc between 1,440 and 2,480 kg/m^3. For normal weight concrete, Ec shall be permitted to be taken as 4,700 (fc')^.5.

Rizwan Mirza, CE
Lahore, Pakistan

On 3 June 2015 at 21:46, Lloyd Pack, P.E.<lloyd(--nospam--at)advantage-engineers.com>
wrote:


Truncated 616 characters in the previous message to save energy.

--

-------------------------------------------------------------------------
Post your message to the list by sending it to: SEAINT-SEAOSC(--nospam--at)mail-list.com.

The email messages sent to the list will be saved in an archive on the World Wide Web.
These archives are located at:
   http://archive.mail-list.com/SEAINT-SEAOSC

To contact the list owner, send your message to:
  SEAINT-SEAOSC-list-owner(--nospam--at)mail-list.com.

Sponsored By: Pacific Structural & Forensic Engineers Group, Inc. (PSFEG)

To unsubscribe, switch to/from digest, get on/off vacation, or change your email address, click here.
<http://cgi.mail-list.com/u?ln=seaint-seaosc&nm=seaintma%40euken.net>