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Old 04-25-2010, 03:52 PM   #1
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Grind top of concrete pier


I am building a low deck, partially over an existing patio. I poured several 8" concrete piers and a few of them are off, maybe 1/2" or so. Is there a way to grind off the top of the pier?

Thanks!
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Old 04-25-2010, 03:57 PM   #2
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Grind top of concrete pier


Sure you could grind the piers with an angle grinder, but why bother? I assume you are using 4x4 or 6x6 wooden posts on top of the pier to support the deck, simply adjust the length of the posts to make the deck level.

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Old 04-25-2010, 05:01 PM   #3
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Grind top of concrete pier


Daniel--sounds like he wants to use the pier to support a girder.

RSmith--Buy a cheap 4 1/2 inch angle grinder--I paid $16.00 for the last one I bought.
A diamond cutting blade is less than $10-


A Skill saw could also be used with a diamond blade--$15.00 to $40.00 Depending on quality.
To trim down a couple of piers that are to high---I'd think a cheap blade will get the job done.

---Mike--
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Old 04-25-2010, 05:08 PM   #4
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Grind top of concrete pier


How about knotch the wood?
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Old 04-25-2010, 06:18 PM   #5
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Grind top of concrete pier


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How about knotch the wood?
Yes, why knot?

Sawdust is harmless, concrete dust not so.
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Old 04-25-2010, 06:36 PM   #6
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Grind top of concrete pier


Shim up the low ones 1/2" & wait for all the tubes to sink.........

In all seriousness, oh-mike has the best answer IMO. Grind for a while, or set a diamind sawblade down about 3/4", sawing reliefs every 1/2" or so, & then chisel all the weakened pieces off from the side.
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Old 04-25-2010, 08:56 PM   #7
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Grind top of concrete pier


Constant garden hose mist with a wet/dry vacuum, and as stated. Wear goggles and mask . Not snorkel.

Be safe, Gary
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Old 04-25-2010, 10:18 PM   #8
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Constant garden hose mist with a wet/dry vacuum, and as stated. Wear goggles and mask . Not snorkel.

Be safe, Gary
and be sure you use GFCI protection for the circuit.

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