Thixotropic Non-cementitious Thermal Grout and HDD or Trough Product Line Methods of Application
AssigneeQuanta Associates, L.P.
InventorsRonald G. Halderman, Pablo Esteban Guerra
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Abstract
The disclosure relates to embodiments of a thixotropic, non-cementitious, thermal grout and applications or methods of use of the grout related to horizontal directional drilling, trenchless technology, trenching, and installation of pipe, conduits, ducts, utility lines, and other product lines which may, e.g., be in trenches, underground, or under obstacles, such as a body of water or roadways.
Claims39
A thixotropic non-cementitious thermal grout for HDD applications for use with a product line, comprising:
- a volume of sand;
- a volume of water;
- a volume of bentonite viscosifier;
- a volume of at least one bentonite extender;
- a volume of lubricant;
- and
- a volume of soda ash.
A thixotropic non-cementitious thermal grout for trenching applications for use with a product line, comprising:
- a volume of sand;
- a volume of water;
- a volume of bentonite viscosifier;
- a volume of at least one bentonite extender;
- a volume of lubricant;
- and
- a volume of soda ash.
A method of installing a product line in a HDD or a trenching application, comprising the steps of:
- filling a void defined by a product line or trough with a thixotropic non-cementitious thermal grout to a greater than about 80% fill rate;
- and
- installing a product line through said thixotropic non-cementitious thermal grout.
Dependencies are inferred from the claim text.