Method of repairing damaged concrete slabs

Road structure – process – or apparatus – Process – In situ treatment of earth or roadway

Reexamination Certificate

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Details

C405S267000

Reexamination Certificate

active

06976804

ABSTRACT:
A method of repairing concrete slabs that have become uneven and dangerous is provided that employs lime sludge that is injected under pressure into the space between the lower surface of the damaged concrete slab and the underlying ground to raise that slab back into a level orientation. Once this has been accomplished, any remaining space below the slab is filled in with well dried sand blown in under pressure.

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