Back to results
US 12,590,029 B2Granted
Filling material
OwnerEgon Döberlinventor
Life of this patent
Estimating the term…
Abstract
A dry mix of a thermally insulating fill material for backfilling and/or filling. The fill material includes a cement-based binder and a thermally insulating material, and the thermally insulating material is newly foamed monograin polystyrene beads.
Claims17
A dry mix of a thermally insulating fill material for at least one of backfilling and filling, the fill material comprising:
- a cement-based binder;
- and
- a thermally insulating material;
- wherein the thermally insulating material is newly manufactured foamed monograin polystyrene beads, recycled polystyrene beads not being used;
- and
- wherein the fill material is an earth-moist mixture, the earth-moist mixture existing when the fill material can be formed into a sphere that retains a spherical shape and only disintegrates when pressed from above.
3 more elements
A method for at least one of backfilling and filling using a dry mixture of a heat-insulating fill material, comprising:
- mixing the dry mixture with water to form a semi-dry mixture, the dry mixture comprising a cement-based binder and a thermally insulating material comprising newly manufactured foamed monograin polystyrene beads, recycled polystyrene beads not being used;
- and
- introducing the semi-dry mixture into a space to be one of filled and backfilled;
- wherein the fill material in the space is present with a sphere packing structure, with the polystyrene beads being binder-wetted and air is present in interstices of the polystyrene beads;
- and
- wherein the fill material is an earth-moist mixture, the earth-moist mixture existing when the fill material can be formed into a sphere that retains a spherical shape and only disintegrates when pressed from above.
3 more elements
A backfill or fill made according to a method, the method comprising:
- mixing a dry mixture of a heat-insulating fill material with water to form a semi-dry mixture, the dry mixture comprising a cement-based binder and a thermally insulating material comprising newly manufactured foamed monograin polystyrene beads, recycled polystyrene beads not being used;
- and
- introducing the semi-dry mixture into a space to be one of filled and backfilled;
- wherein the fill material in the space is present with a sphere packing structure, with the polystyrene beads being bonded by the binder and air is present in interstices of the polystyrene beads;
- and
- wherein the fill material is an earth-moist mixture, the earth-moist mixture existing when the fill material can be formed into a sphere that retains a spherical shape and only disintegrates when pressed from above.
3 more elements
Dependencies are inferred from the claim text.