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Remove 2" of concrete SOG
September 16, 2008
6:47 AM
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September 12, 2007
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yes you do win a prize .... you can kick me in the a** for being stubborn

September 13, 2008
4:53 AM
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October 24, 2006
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Do I win a prize?? :D

September 12, 2008
11:43 AM
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we ended up cutting it all into a checkerboard with a stihl demo saw and chipping away at it ... would have definately been easier taking the whole thing out and repouring it if it was slab on grade.

August 21, 2008
5:57 PM
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Might be more cost effective to remove the whole 1200 sq ft of floor and pour back in 3" ???

August 20, 2008
7:51 PM
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Look into a rotary grinder w/diamond teeth for a hydraulic excavator

August 20, 2008
10:41 AM
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August 20, 2008
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Where do you purchase a Marcrist Floor Shaver? I cannot find it online.

June 23, 2008
8:49 AM
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August 29, 2005
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jthorud.adc;9206 said:
Check the depths of rebar! Otherwise you may eat up a lot of teeth. Just keep in mind how deep your running.

Great point indeed!

June 20, 2008
7:15 AM
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September 18, 2005
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Great point
You should probably to a core in two or three places.

June 20, 2008
5:49 AM
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March 17, 2008
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Check the depths of rebar! Otherwise you may eat up a lot of teeth. Just keep in mind how deep your running.

June 20, 2008
5:48 AM
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September 18, 2005
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We cut 600 sq.ft. down 1/8 to 1/4" with 2-8" planer/scarifiers in a day.
Most important:
Start with the right gear- If you are going to run 2 machines you will need a 30kw generator set-up with spider boards to the work area and then connect the machines to the boards.
Superior in Southbury has all the equipment

June 18, 2008
9:01 AM
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I was gonna say the same as Nuke, there are some shavers that can take up to 1/2" each pass. That maybe the way to go.

June 18, 2008
5:10 AM
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September 12, 2007
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Once the first 2" of concrete is removed they will be pouring gyp-crete over the floor to level the entire area (roughly 15,000 sf) so im not terribly worried what the end product looks like. It can be rough to a point.

I will look into that floor shaver.

I appreciate all the insight!

June 17, 2008
1:46 PM
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concreterick
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This one doesn't sound like much fun. The 4" remaining will look pretty ugly and be weakened from the chipping. I would vote for full depth removal and pour back with only 1200 sqft.

Obviously my opinion isn't worth a darn if you have special site conditions, i.e. contamination, difficult location, war zone, lunar surface, etc.

Good Luck,
Rick

June 17, 2008
6:29 AM
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September 12, 2007
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We are working on a project where the concrete floor varies about 5" from one side of the building to the other. In one particular area, about 1200 sf, they would like to remove about 2" from the 6" slab on grade.

I plan on setting the depth of a concrete saw 2" and making a checker board out of it and chipping away. Does anyone have any other ideas?

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