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Old 02-18-2013, 05:13 PM   #1
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wood for concrete expansion joints


Can I use a 2x4 for a concrete expansion joint or does the expansion joint have to be a 1x4 furring strip?

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Old 02-18-2013, 05:16 PM   #2
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Are you asking how to form up for an expansion joint, or were you thinking of leaving the wood in place?

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Old 02-18-2013, 05:53 PM   #3
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If you tell us what it is your trying to do it would be a big help?
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Old 02-18-2013, 06:16 PM   #4
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wood for concrete expansion joints


The wood will eventually rot out and you will have a rather large gap left by using a 2x4.
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Old 02-18-2013, 09:10 PM   #5
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Quote:
Originally Posted by joecaption View Post
If you tell us what it is your trying to do it would be a big help?
Sidewalk that connects two 10x12 structures. The structures are built on 18 inches below grade and 12 inches above grade foundations (to avoid high waters during rains). In between the structures is an existing 4" slab. So I'm thinking of putting expansion joints between the foundations and sidewalk and between the slab and sidewalk. Ideally I would like to remove them after the pour but from my experience wood can be awfully difficult to remove if the concrete latches onto it.
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Old 02-18-2013, 09:18 PM   #6
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http://www.homedepot.com/h_d1/N-5yc1...&storeId=10051

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