Need a book? Engineering books recommendations...

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

RE: Contec AAC

[Subject Prev][Subject Next][Thread Prev][Thread Next]
Title: Message
Actually, AAC is in the masonry code as an appendix and has been for two cycles (2005 MSJC and now the 2008 MSJC).  I will admit that I don't know if that part of the MSJC has been "deleted" when the MSJC is referenced in the IBC or not (I have be a good boy and acquire my 2006 IBC).
I would certainly agree that Rich is the person to talk to as he has done a lot of the testing through his students and is the past chair of the MSJC and was heavily involved with the AAC provisions in the MSJC.
Adrian, MI
-----Original Message-----
From: Harold Sprague [mailto:spraguehope(--nospam--at)]
Sent: Friday, December 28, 2007 6:12 PM
To: seaint(--nospam--at)
Subject: RE: Contec AAC

Dr. Richard Klingner from Texas has been tasked to work with the AAC people to get AAC into the building code.  He knows the testing performed to date, the construction practices and what the code is intending.  He is having a bit of an issue getting building code developed. 
Just because something is not in the code does not necessarily make it "illegal" to use.  It adds significantly to the degree of engineering effort.  I would talk to Richard to find out what he would recommend.  I would also bill hourly.

Harold Sprague

> Date: Fri, 28 Dec 2007 09:33:12 -0800
> From: chris(--nospam--at)
> To: seaint(--nospam--at)
> Subject: Contec AAC
> Hi All,
> We've been asked to bid on a residence that is going to be built out
> of Contec Autoclaved Aerated Concrete (AAC). I've not worked with the
> material before and am trying to get a handle on it before putting a
> number on the proposal.
> There is an older ICBO report on it, but that states that it can't be
> used in Seismic zones 3 or 4, and since the project is in the SF Bay
> area (zone 4) it seems like it's not going to work.
> Does anyone on the list have experience designing with this material?
> If so, can you point me to some good references and - hopefully - a
> more recent ICBO report?
> Thanks,
> Chris

Share life as it happens with the new Windows Live. Share now!