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#1
10-25-2012, 11:40 PM
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Can you backfill a bore hole under a driveway?
We have to put a 4" Schd 40 pipe under a driveway. Is there anyway to get some dirt back in there?
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Its not hot , its your bloody hat. Get the right hat and its like standing in the shade. 
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#2
10-25-2012, 11:41 PM
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you can use a grout or slurry pump or one of those pumps the oil tank abandonment companys use. I think its like a weak concrete mix
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RJ All Day Gehl 5640 Mustang 940 2003 International 4300 dump 1989 International S1900 dump 2003 Ford F250 6.0 diesel www.rjfalcone.com
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#3
10-26-2012, 12:13 AM
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The red letter sch 40 pvc pipe is a lot stronger than the foam core (black letter) sch 40. Home depot only sells the cheap foam core pipe so you would have to buy it from commercial plumbing supply co like thomas somerville.
Are you putting this pipe in to run irrigation pipe or conduit to the other side of the driveway? And are you boring with a 4" torpedo mole? If so, there shouldn't be any void space on the outside of the pipe when installes and there shouldn't be a need to fill the inside of the pipe. Last edited by blakescape; 10-26-2012 at 12:22 AM.
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#6
10-26-2012, 07:13 AM
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Like Jim said if you missile, directional bore, or jack it under the drive there should be very little or no space to fill.
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#7
10-26-2012, 12:15 PM
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Quote:
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#9
10-26-2012, 01:59 PM
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I believe they call it "cellular core" and it is only for dwv
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#10
10-26-2012, 02:00 PM
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Quote:
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