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RE: slab joint filler

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What kind of detail are you using for construction joints?  In theory, you
should not need joint filler at construction joints if the joints are
designed not to open up.  If they are really crack control joints, then 1/4"
joints at 1/4 slab depth sound reasonable. 

> -----Original Message-----
> From: La Count, Curt [mailto:Curt.LaCount(--nospam--at)]
> Sent: Monday, September 20, 1999 3:38 PM
> To: 'seaint'
> Subject: 
> I need some opinions from members of the list.
> Floor joints exposed to hard wheeled traffic are often filled 
> with a semi
> rigid epoxy joint filler.  The joint filler supports the 
> joint edges and has
> some limited  capacity to move with the slab as it shrinks.  
> At sawn joints,
> the joint width is often 1/8" to 1/4" wide and the saw cut 
> depth is around
> 1/4 of the slab depth.  My question is;  At construction 
> joints, what would
> be a reasonable joint depth and width?  Is there a minimum 
> aspect ratio to
> the joint filler for proper performance?  I've got the joint filler
> manufacturer working on the answer too, but I thought that I 
> would tap into
> the collective wisdom of the list server.
> TIA,
> Curt La Count
> Jacobs Engineering
> Portland, OR