Light Weight Magnesium OxyChloride Composition and Construction Board
AssigneePremier Magnesia, LLC
InventorsRonald J. Voit, Mark A. Shand, Ronald Wardle
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Abstract
A high performance, light weight construction board includes unique low solids Magnesium Oxychloride binder systems filled, Expanded Polymer Beads (EPB) blended with Expanded Perlite and/or with Coal Fuel Fly Ash. Weight reductions for such compositions by incorporating proteinaceous foaming agents into the binder matrix. The use of Calcium and other alkali earth chlorides mixed with magnesium chloride, or totally replacing magnesium chloride, provides unexpected improvements in binder strength. The use of a unique polymer scrim with felt construction provides improved compressive and directional strength properties while also providing superior board pull and shear properties.
Claims13
A light-weight, highly durable Magnesium OxyChloride-based composition comprising:
- a low weight binder system including:
- low temperature calcined and highly reactive Magnesium Oxide;
- at least one of:
- Magnesium Chloride, Calcium Chloride, or another alkali earth chloride;
- water;
- at least one of an aeration or foaming agent;
- and
- a filler blend including Expanded Polymer Beads with at least one of Expanded Perlite and/or Fly Ash.
A Magnesium OxyChloride-based construction board having an upper face and a lower face, comprising:
- a low weight binder system including:
- low temperature calcined and highly reactive Magnesium Oxide;
- at least one of:
- Magnesium Chloride, Calcium Chloride, or another alkali earth chloride;
- water;
- at least one of an aeration or foaming agent;
- a filler blend including Expanded Polymer Beads with at least one of Expanded Perlite or Fly Ash;
- and
- a scrim fabric comprising reinforcing fabrics including synthetic fibers and a felt layer positioned over the upper and the lower faces.
Dependencies are inferred from the claim text.