E - Fixed Constructions – 04 – G
Patent
E - Fixed Constructions
04
G
E04G 13/02 (2006.01) E04G 19/00 (2006.01)
Patent
CA 2475085
A formwork for forming a concrete structure, comprising a rigid tubular envelope defining a peripheral inner wall circumscribing an axial hollow, further comprising a wall assembly nested within the axial hollow of the tubular envelope and including a number of wall parts defining inside and back surfaces. The back surface of each wall part bears against a corresponding section of the envelope inner wall, and the wall parts are arranged successively one relative to the other in peripheral coextensive fashion within the tubular envelope such that the inside surfaces, in combination, configure an axial forming cavity for receiving and forming a concrete column therein. The wall assembly further comprises an impervious liner applied to the inside surface of each wall part, providing an impervious barrier between the forming cavity and the inside surface of the wall parts.
Abzac Canada Inc.
Lesperance & Martineau S.e.n.c.
LandOfFree
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