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disband
Join Date: Feb 2002
Location: Tuo*Co on CA108
Posts: 14,242
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you might try forming right around the perimeter of the building and pouring a VERY wet concrete. maybe a NO SLUMP mix. you will need conrete vibrators to get the mud to flow and elevate up to the bottom of the existing floor. you will also need multiple locations to introduce the concrete and vibrators in.
is the existing floor supported by joist, or more of a post and beam affair? if joisted my suggestion above won't work.
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15 Rubicon JK/07.5 LMM Duramax 4x/86 Ski Nautique Correct Craft
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