Need a book? Engineering books recommendations...

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

RE: dead end slab control joint

[Subject Prev][Subject Next][Thread Prev][Thread Next]
In general, yes, it is wrong. I would only terminate a control joint at an expansion joint. Keep in mind that concrete will try to shrink to the center of the section of slab. If constrained, it can not shrink to the center, and it will shrink and form its own joints.

Dead ending a slab control joint will result in a stress riser at the termination. This will become a point of generation of shrinkage cracks.

Harold Sprague

From: "Mark L. Puccio" <mpuccio(--nospam--at)>
Reply-To: <seaint(--nospam--at)>
To: <seaint(--nospam--at)>
Subject: dead end slab control joint
Date: Sat, 16 Jun 2007 14:14:56 -0500

Is it wrong to detail a control joint to come to a "T"? I have a floor with
geometry such that when I layout the control joint spacing it would work out good if this is okay or will the crack continue thru the T? I can't find any documentation one way or the other on this. I guess a safe thing to do would be to angle the cut or cut full depth - but I am wondering what some of your
thoughts and experiences are.


Mark L. Puccio P.E., S.E.

Picture this ? share your photos and you could win big!

******* ****** ******* ******** ******* ******* ******* ***
*   Read list FAQ at:
* * This email was sent to you via Structural Engineers * Association of Southern California (SEAOSC) server. To * subscribe (no fee) or UnSubscribe, please go to:
* Questions to seaint-ad(--nospam--at) Remember, any email you * send to the list is public domain and may be re-posted * without your permission. Make sure you visit our web * site at: ******* ****** ****** ****** ******* ****** ****** ********