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[SEAOC] RE: [SEAOC] Re: Concret cracks

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No....First learn to use spell check

>----------
>From: 	Oeyvind Saeter[SMTP:oysater(--nospam--at)sn.no]
>Sent: 	Thursday, September 19, 1996 11:23 PM
>To: 	seaoc(--nospam--at)power.net
>Subject: 	[SEAOC] Re: Concret cracks
>
>FISRT:
>Before posting PLEASE clean up the SUBJECT line (remove all the [SEAOC]
>things) so it will be easier to read the SUBJECT line. Have you ever tried
>to find the Subject when there is 48 chars of garbage first? (Garbage =
>[SEAOC] Re[SEAOC] Re ... etc)
>
>THEN CONCRETE CRACKS:
>Normally cracs due to plastic shrincage is limitet in length (up to a couple
>of meters), remark that i say normally - there is times you get long cracks.
>
>Shrinkage cracks has often a relative long length (relative to the
>structure), for instance normal to the length of the structure and all
>across it. 
>
>On a slab on grade you will normally get plastical shrincage crakcs at a 45°
>angle (with some exceptions). Shrinkage cracks will normally go paralell or
>normal to the structures main lines (depending on the structure support and
>whats on top of it.)
>
>Cracks due to external forsec (included erthquake) cracks get different
>directions according to the type of forces and how/where the attack.
>All types of cracks start at the week point of the strukture, for instance
>corners - holes etc.
>
>The trouble regarded with evaluating cracks is that You often have to see
>them (visual) to evaluate them. An idea in this matter is that if You have a
>picture/diaphgram etc. you man put them on WWW and post the URL here. Pleace
>do not attach pictures as some people pay for bytes mail received. (and
>there is always problems with conversion etc.)
>____________________________________________________________________________
>
>Mr. Øyvind Sæter    (Alternative: OEyvind Saeter)
>M. Sc. in Civil Engineering - Structural Analysis and Concrete Technology.
>
>Email: oysater(--nospam--at)sn.no | oes(--nospam--at)pvv.ntnu.no | oes(--nospam--at)pvv.unit.no
>       All mail is forwarded to oysater(--nospam--at)sn.no
>WWW  : http:\\www.pvv.ntnu.no\~oes
>
>Disclaimer:
>  Information in this EMail has nothing to do with NTNU, PVV or my employer.
>============================================================================
> 
>
>...
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