Method of forming and maintaining a concrete structure

Details Method of forming and maintaining a concrete structure Method of forming and maintaining a concrete structure

F - Mech Eng,Light,Heat,Weapons

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F16L 5/10 (2006.01) E03F 3/04 (2006.01) E04B 1/684 (2006.01) F16J 15/02 (2006.01) F16L 5/02 (2006.01) F16L 7/00 (2006.01) F16L 55/163 (2006.01)

Patent

CA 2674122

A method of forming and maintaining a concrete structure, comprises the steps of casting a first annular gasket within a wall of the structure using at least one mandrel, the gasket including a longitudinal axis and an anchor flange embedded within the wall, the mandrel having an annular outer surface aligned with respect to the longitudinal axis of the gasket, whereby the mandrel forms an annular opening within the wall having an annular surface aligned with respect to the longitudinal axis of the gasket, removing at least a portion of the first gasket from the wall to expose the annular surface of the opening and installing a second gasket within the opening in the wall using an expansion band to sealingly compress at least a portion of the second gasket to the annular surface of the opening.

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