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Old 05-28-2019, 06:29 PM   #16
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Re: Braking concrete


Yodaman had an easy time with an electric jackhammer. I had a hard time with one. I think the difference is in the thickness of the concrete. I can believe a jackhammer will have an easy time through 3" slab. Mine was maybe 10" thick. I am predicting OP will have a real fun time with that footing --- hope that's 12" wide, not 12" deep.
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Old 05-28-2019, 07:56 PM   #17
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Re: Braking concrete


Depends on the quality of the concrete.
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Old 05-28-2019, 10:38 PM   #18
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Re: Braking concrete


Breaking up concrete is never easy, like breaking up a concreted relationship.
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Old 05-29-2019, 05:53 AM   #19
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Re: Braking concrete


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Depends on the quality of the concrete.

Several yrs ago I tore down a 150 yr old house that had a bath rm added in the 80s. It was in a small addition on a 4" concrete slab. I thought I'd pull it up with my tractor bucket, that didn't work so I attacked it with a sledge hammer and couldn't even crack it. A backhoe struggled but did get it up.
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Old 05-29-2019, 06:15 AM   #20
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Re: Braking concrete


bosch sds max will make 1 1/2" holes,,, cheaper & faster ? rent bosch brute 60# for breaking,,, seems to me your bigger issue is funding this work
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Old 05-29-2019, 10:12 PM   #21
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Re: Braking concrete


Here is what I need to break.
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Old 05-30-2019, 12:26 AM   #22
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Re: Braking concrete


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Depends on the quality of the concrete.
...and the age. Concrete continues to harden for many years. It's much easier to drill new concrete vs old.

Breaking up concrete is never fun. Years ago I did a patio tear out where the slab was tied in to the foundation. We cut back the pad with a wet saw to get a straight line along the foundation, then we started breaking up the 4" slab only to find another 6" slab under it. At that point we called in the machine ops from down the street to have at it with their excavator. Half way through pulling up the 4" and 6" slabs they found another 8" slab under half of the patio! I'd still be there to this day chipping away at all those layers if we didn't bring in the excavator.
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Old 06-22-2019, 01:16 PM   #23
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Re: Braking concrete


Done! I rented a makita electric jack hammer. The bottom was easy but those sides were a major pain! They turned out to be about 2'. Took me 7 hours but I finally got it.
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Old 06-22-2019, 02:14 PM   #24
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Re: Braking concrete


Good job. A little concrete will never be a obstacle for you again.
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Old 06-23-2019, 10:00 AM   #25
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Re: Braking concrete


I bet you're still tingling.
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