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Re: Modulus of Elasticity for concrete

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Prior to the adoption of that method (I think), Ec = 1000f'c - from my Elementary Structural Analysis and Design text book (1942) by Grinter - course taken 1953. And prior to that Hool and Johnson in their Concrete Engineers' Handbook (1918) had a variety of modulus on page 846. (1923 edition). This little research project is kind of interesting because this is my fathers this book from that time.


On 6/7/2015 2:26 PM, Thor Tandy wrote:
No issue. I was reviewing some papers being presented at this year's Canadian Association for Earthquake Engineering conference in July and I noted various values for Ec being presented by various submissions.

I was interested in what others were using for Ec and received a range of
values ... (smile)

Thor A. Tandy P.Eng, C.Eng, Struct.Eng, MIStructE, FEC
Victoria, BC
Email: vicpeng(--nospam--at)
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-----Original Message-----
From: seaint-seaosc(--nospam--at) [mailto:seaint-seaosc(--nospam--at)] On
Behalf Of nma Sent: June-07-15 2:17 PM
To: seaint-seaosc(--nospam--at)
Subject: Re: [SEAINT-SEAOSC] Modulus of Elasticity for concrete

In fact that is the same formula from Section 1102 of ACI 318-63.

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