Formwork and method for constructing rammed earth walls
AssigneeSirewall Inc.
InventorMeror Krayenhoff
Life of this patent
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Abstract
The invention is a formwork system and a method of using the formwork to construct rammed earth walls. The formwork comprises end panels which can be quickly assembled and disassembled to provide end stops to support side panels without the need for through-ties. The end panels comprise integral handholds for access to the full height of the formwork. The end panels are stackable, rotatable and interchangeable, such that one set of formwork may be used to create several different wall configurations. The finished wall contains an internal support structure and insulating core, without through-holes.
Claims59
A formwork system for a rammed earth structure having a desired height, comprising:
- first and second elongated end stop structures vertically extending substantially said desired height;
- said first and second end stop structures comprising a plurality of elongated flat frame members, each extending substantially vertically and parallel to one another;
- said first and second end stop structures mountable in opposed spaced relation to one another to define a length of said rammed earth structure;
- a plurality of wall face-defining structures mountable in opposed spaced relation on said mounted first and second end stop structures, thereby defining a cavity to contain rammed earth;
- and
- first and second internal frames supported within each of said first and second end stop structures,
- said first and second internal frames supporting an insulating foam core within said cavity.
A method of constructing a rammed earth structure having a desired height, comprising the steps of:
- providing first and second vertically elongated end stop structures extending substantially said desired height;
- mounting said first and second end stop structures in opposed spaced relation to one another to define a length of said rammed earth structure;
- mating said first and second end stop structures with a plurality of wall face-defining structures, thereby defining a cavity;
- inserting a first internal frame within said first end stop structure;
- inserting a second internal frame within said second end stop structure;
- said first and second internal frames being adapted to support an insulating core;
- inserting an insulating core into said cavity such that said insulating core is at least partially supported by said internal frames and extends into said end stops;
- and
- ramming earth into said cavity about said insulating core.
Dependencies are inferred from the claim text.