Wall member and method of construction thereof
AssigneeJames Hardie Research Pty Limited
InventorsJohn Sydney Cottier, David Robert Collins, James Graham Geeves
Life of this patent
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Abstract
A process for constructing a wall, floor or ceiling in situ. The process includes the steps of erecting a substantially rigid frame (10) and attaching fiber reinforced cementitious sheets (50) to the front and rear faces of the frame to form a void (60) therebetween. This void (60) is then filled with a lightweight aggregate concrete slurry and allowed to cure. The sheets are adapted to absorb sufficient moisture from the lightweight aggregate slurry to provide natural adherence of the concrete slurry to the sheets without substantially losing their structural integrity during setting and curing of the concrete slurry.
Claims21
A method of constructing a wall, floor or ceiling in situ, wherein said method includes the steps of:
- erecting a substantially rigid frame defining front and rear faces of a wall, floor or ceiling;
- attaching fibre reinforced cementitious sheets to said front and rear faces, to form a void therebetween;
- injecting a lightweight aggregate concrete slurry with a density between about 200 kg/m3 and 1800 kg/m3 into said void;
- and
- allowing said concrete slurry to set and cure;
- wherein said sheets absorb moisture at a rate greater than about 0.2 mm per hour to provide natural adherence of said concrete slurry to said sheets without substantially losing their structural integrity during setting and curing.
Dependencies are inferred from the claim text.