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Author:
comegetme (CA)
I want to fill a 25 ft section of 3'' cast iron pipe that is to be abandoned under the slab. (To prevent eventual collapse, settlement, water infiltration, ants through penetrations though slab, etc.). What material can be used? I heard flowable grout, cellular concrete, etc., are used, but how do I get it for small residential purposes?
Edited 3 times.
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Author:
bernabeu (SC)
you will need to find a contractor willing to do a 'small' job as it will/may require a 'vibrator rod' tool for proper installation
'google' it
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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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Author:
hj (AZ)
You are being paranoid. Just abandon the pipe and forget about it. It will not collapse.
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Author:
m & m (MD)
If there is an open end inside your basement/slab/etc., then stuff as much mortar mix as you can inside the open end. Other than that, I'd leave the rest alone.
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Author:
sum (FL)
If it were me I would just plug it. Stuff some newspaper tightly into the hole until it can hold a little bit of weight, then mix up a bowl of construction grout and pour it in and let it set.
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