WO2011034545A1 - Coulis géothermique et procédé de préparation de celui-ci - Google Patents

Coulis géothermique et procédé de préparation de celui-ci Download PDF

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Publication number
WO2011034545A1
WO2011034545A1 PCT/US2009/057638 US2009057638W WO2011034545A1 WO 2011034545 A1 WO2011034545 A1 WO 2011034545A1 US 2009057638 W US2009057638 W US 2009057638W WO 2011034545 A1 WO2011034545 A1 WO 2011034545A1
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WO
WIPO (PCT)
Prior art keywords
grout
dry
approximately
grout material
mid
Prior art date
Application number
PCT/US2009/057638
Other languages
English (en)
Inventor
Jeffrey John Konczak
Original Assignee
Supergrout Products, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Supergrout Products, Llc filed Critical Supergrout Products, Llc
Priority to PCT/US2009/057638 priority Critical patent/WO2011034545A1/fr
Priority to NZ598959A priority patent/NZ598959A/xx
Priority to AU2009352672A priority patent/AU2009352672B2/en
Priority to EP20090849630 priority patent/EP2480511A4/fr
Publication of WO2011034545A1 publication Critical patent/WO2011034545A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/021—Ash cements, e.g. fly ash cements ; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration ; Kiln dust cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/06—Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers ; Inhibiting the action of active ingredients
    • C04B40/0608—Dry ready-made mixtures, e.g. mortars at which only water or a water solution has to be added before use
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
    • C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
    • F24T10/15—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubes; using tubes assembled with connectors or with return headers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
    • C04B2111/00706—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like around pipelines or the like
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/34—Non-shrinking or non-cracking materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T2010/50—Component parts, details or accessories
    • F24T2010/53—Methods for installation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/10—Geothermal energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the present disclosure relates to a grout composition and methods of preparing and utilizing same. More particularly, the present disclosure relates to a novel and unique grout composition made from recycled materials which grout is thermally enhanced and usable as a geothermal material, and methods of preparing and utilizing same.
  • boreholes are put into the ground and commonly range from 100 to 300 feet in depth (or more), are generally 4 to 6 inches in diameter, and include a tubular "loop" which can be made of a copper or PVC material. Generally, one loop is installed for each "ton" of heating and cooling capacity for the building or facility for which the geothermal direct exchange will service. A typical installation is between 4 to 6 loops for an average sized United States household.
  • a grout i.e., grout material.
  • Approximately 95% of these bore-holes worldwide utilize a Bentonite material mixture with silica sand.
  • the known Bentonite mixed with sand-based mixtures are difficult to maintain flowability while placing, and very difficult to pump through drilling, such as with a contractor's typical on-board mud pump.
  • many known grout materials is subject to "bridging" in the borehole (where the material bridges across the hole and there is an empty gap below and/or above the bridged material in the borehole), so laborers are accustomed to adding extra, and too much, water in an effort to make the known grout mixture more flowable.
  • few laborers understand the damage that they are creating to the performance of the installed system with every ounce of extra added water - and few homeowners are aware of the resulting degraded geothermal system performance.
  • the present disclosure provides a thermally enhanced grout composed primarily of recycled materials. More specifically, in one exemplary embodiment, the present disclosure provides a thermally enhanced geothermal grout made up of a class F fly ash material in a range of approximately 50 to 80 % by weight of the grout; and cement kiln dust in a range of approximately 20 to 50% by weight of the grout.
  • the present disclosure also provides a method of preparing a thermally enhanced geothermal grout from recycled materials, comprising the steps of: preparing a single component dry grout mixture comprising approximately 50 to 80% class F fly ash and approximately 20 to 50% cement kiln dust; adding a dry, mid-range water reducer at an addition rate of approximately 0 to 8 fluid ounce equivalent per hundred-weight of the dry grout mixture; and adding dry sodium hydroxide at an addition rate of between approximately 0 to 12 dry ounces per hundred weight of the dry grout mixture. Approximately seventy pounds (701bs) of the above dry grout mixture materials are then mixed with approximately five gallons of water to prepare a grout material that can be directly deposited in a borehole for a geothermal application
  • FIG. 1 is a microscopic photograph of the prior art.
  • FIG. 2 is a microscopic photograph of Geo SuperGroutTM.
  • the present disclosure relates to a grout product that was conceived to fill the void in the marketplace for a higher performing grout product that would eliminate most of the problems associated with currently-available grout products.
  • the term "single component grout” is intended to mean a single bag of material that can be mixed with only water to make a finished grout material.
  • the term "Geo SuperGroutTM” as used herein means a grout material prepared in accordance with the present disclosure.
  • the grout material of the present disclosure fills a long-standing market need for a superior functioning borehole grout that has a higher degree of thermal conductivity, but still resists shrinkage and cracking that is prevalent in nearly all currently-available grout products.
  • the a single component grout mixture includes between 50 and 80% by weight of class "F" fly ash and between 20 and 50% by weight of Cement Kiln Dust (CKD). These raw materials are preferably pre-blended and packed into one seventy pound bag. The packaged 70 pound bags are clearly marked to add five (5) gallons of water per 70 pound bag to prepare a predetermined amount of grout material for being added to a borehole. When five gallons of water are added to each seventy pound bag, the yield of finished grout is then approximately seven gallons of liquid grout material.
  • CKD Cement Kiln Dust
  • two other dry chemical components are added to the seventy pound bag of combined fly ash and CKD to aid in the performance of the grout material.
  • the first added material is added to enhance the flowability of the mixed grout material, and is commonly known as a mid-range water reducer.
  • the preferred mid-range water reducer materials are either naphthalene or a lignosulphonate, commonly known as a "lignin”.
  • the addition rate of the dry form mid-range water reducer depends upon the physical characteristics of the fly ash component, as the particles of fly ash are typically round, hollow spheres.
  • the addition rate of the mid-range water reducer is preferably between 0 and 8 fluid ounce equivalent per CWT (hundred- weight) of dry grout mixture.
  • the second dry chemical addition to the blended bagged product is used to help artificially "hydrate” the fly ash particles. It is in the form of a caustic known as sodium hydroxide. Because Class “F” fly ash has calcium oxide (CaO) under the hard, non-reactive layer of silica (Si0 2 ), the sodium hydroxide is used to perforate the shell of the fly ash particle, which opens up the calcium oxide (CaO) hydration, thus hardening the grout when in place. The addition rate of the dry "caustic” is between 0 and 12 dry ounces per CWT (hundred- weight).
  • the grout material of the exemplary embodiment involves a balance of component chemistries.
  • CKD cement kiln dust
  • the available chemistries of those raw materials sometimes require very little sodium hydroxide, and based on the fineness and particle shape of the fly ash, it may require very little lignin (water reducer).
  • the present disclosure includes the flexibility to determine what amounts of added mid range water reducer is needed based on the manufacturing locations of the fly ash and CKD, so when blended the performance of the resultant grout material is consistent. Accordingly, in one exemplary embodiment, while it will be extremely rare that the first and second chemical additions will ever be at zero on these components, it is statistically possible.
  • the grout composition of the exemplary embodiment hydrates and hardens within 24 to 48 hours. This is very significant in counteracting the shrinkage occurring in the Vadose Zone, in reducing internal shrinkage of the grout material itself, and improves the stiffening of the material which helps secure the particles in place in the hardening grout material once it begins to hydrate in the borehole.
  • Calcium silicate hydrate (CSH) is microscopic siliceous glass crystals that grow and surround all particles in the paste matrix. The CSH crystals act as both strength and stiffness against shrinkage pressures.
  • the hydrated grout material is composed of fly ash particles which are silica, the hydration product which is silica, the cement kiln dust (CKD) which is silica, and because the particle sizes are so small and numerous, the thermal conductivity is enhanced because all surfaces of non-similar shapes are touching.
  • Bentonite/Silica Sand mixtures are flooded with water to make the jagged rough particles flow around each other.
  • the water in such Bentonite/Silica Sand mixtures is absorbed into the surrounding soil, and is most damaging in the Vadose Zone.
  • the Vadose Zone is typically dryer than most ground soils and therefore absorbs water relatively quickly compared to other zones. The result is there will be more severe shrinkage and voids around the loops and the annular space in the borehole in the Vadose Zone.
  • a typical Bentonite/Silica Sand mixture is about 1:4 Bentonite to sand ratio.
  • any geothermal ground system depends upon the transfer of heat from the loop to the surrounding soils and the regeneration of needed loop temperatures as the coolant or water is returned to the pump system for further compressing.
  • the typical Bentonite/Silica Sand mixture stops being agitated by a mixer or pump such as those used at a work site location where the grout is to be put in the borehole, they quickly settle and separate.
  • the typical Bentonite/Silica Sand mixture is put in the borehole and is not agitated/mixed, the water rises to the top of the borehole and the heavier Bentonite and silica sand settle at varying levels in the borehole.
  • the grout mixture of the exemplary embodiment (e.g., the Geo
  • SuperGroutTM comparatively performs very well with very little shrinkage, no cracking and tight bond around the copper loops.
  • FIG. 1 shows a microscopic photograph of the prior art, Bentonite/silica sand 1 :4 ratio (at 40X).
  • FIG. 2 shows a microscopic photograph of a grout mixture prepared according to the present disclosure (e.g., Geo SuperGroutTM (at 40X)). Notice the marble like surface with no pronounced void spacing being observable at 40 times magnification.
  • the black specks in FIG. 2 are carbon from the fly ash. The particles are extremely small and close in around each other giving a dense impervious structure. The density and non-porosity of the grout material as observable in FIG. 2 increases over time as a result of hydration.
  • the following chart shows thermal conductivity results for values generated by performing ASTM D1554 - a standard test used by all grout manufacturers. The test results shown were taken at the same age in a plastic state at 48 hours. Typically, test values will rise as the grout ages; however, the grout mixture of the exemplary embodiment (Geo SuperGroutTM) is the only material stiff enough at 7 days to compare. All Bentonite mixes are still very fluid resulting in lower than promoted values.
  • IDP-357 material in the chart above indicates it has a relatively higher thermal conductivity value
  • the price of IDP-357 material is approximately $90.00 per 501b. bag which makes it too costly to use in geothermal applications where a very significant amount of material is required.
  • Geo SuperGroutTM is unlike other geothermal grouting materials and includes cementitious properties, significant amounts of additional calcium silicates are produced upon hydration and hardening of the grout material, according to the exemplary embodiment, which reduces significantly the permeability of hydraulic and non-hydraulic liquids.
  • These silicates in the grout material of the exemplary embodiment provide a perpetual protection of the loop system from acidic soils as the silicates are effective to neutralize the surrounding acidic soil conditions.
  • Solids by weight of slurry 62.7% (5.0 gallons of water per 70# bag, OR .595 W/C ratio)
  • the GEO SuperGroutTM grout material can be comprised of approximately 60% class F fly ash and approximately 40% CKD. In this formulation, no other products are introduced into the mixture.
  • Geo SuperGroutTM grout material can be comprised of the following components: approximately 55% class F fly ash, approximately 45% CKD, approximately 8 dry oz. of NaOH/lOOlb. weight of material (where the naphthalene is in dry form which is required to obtain a proper mix for the grout material in dry form), and approximately 6 dry oz. of Naphthalene/100 lb. weight.
  • the components are in dry form and placed in 70 lb. bags for shipping and mixing/use purposes.
  • the amount of water to be added and mixed is, in the exemplary embodiment, preferably kept constant— 5 gallons /70 lb. bag of material.
  • different size bags and amounts of water can be prepared as may be desired in various applications.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Sustainable Energy (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sustainable Development (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

L'invention concerne un coulis géothermique, à un seul composant, thermiquement amélioré, qui est composé de matériaux recyclés comprenant des cendres volantes de classe F et de la poussière de four de ciment et qui est particulièrement utile en tant que mélange de coulis dans le remplissage d'un trou de forage dans le sol pour une utilisation dans la protection d'une boucle d'un système géothermique. Des composants supplémentaires du mélange de coulis peuvent comprendre un réducteur d'eau à distance moyenne et un matériau caustique sec. Le coulis géothermique amélioré thermiquement peut comporter des cendres volantes de classe F dans une plage comprise entre approximativement 50 et 80 % en poids du coulis et de la poussière de four à ciment dans une plage comprise entre approximativement 20 et 50 % en poids du mélange de coulis.
PCT/US2009/057638 2009-09-21 2009-09-21 Coulis géothermique et procédé de préparation de celui-ci WO2011034545A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/US2009/057638 WO2011034545A1 (fr) 2009-09-21 2009-09-21 Coulis géothermique et procédé de préparation de celui-ci
NZ598959A NZ598959A (en) 2009-09-21 2009-09-21 Geothermal grout and method of preparing same
AU2009352672A AU2009352672B2 (en) 2009-09-21 2009-09-21 Geothermal grout and method of using same to install a geothermal heating system
EP20090849630 EP2480511A4 (fr) 2009-09-21 2009-09-21 Coulis géothermique et procédé de préparation de celui-ci

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2009/057638 WO2011034545A1 (fr) 2009-09-21 2009-09-21 Coulis géothermique et procédé de préparation de celui-ci

Publications (1)

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WO2011034545A1 true WO2011034545A1 (fr) 2011-03-24

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EP (1) EP2480511A4 (fr)
AU (1) AU2009352672B2 (fr)
WO (1) WO2011034545A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013032536A2 (fr) * 2011-04-01 2013-03-07 Maryland Environmental Restoration Group, Inc. Coulis géothermique, procédés de production de coulis géothermique et procédés d'utilisation
US9845423B2 (en) 2015-04-29 2017-12-19 Halliburton Energy Services, Inc. Grout fluids for use in a geothermal well loop
WO2023224847A1 (fr) * 2022-05-17 2023-11-23 Geothermic Solution, Inc. Compositions et procédés de prévention de reflux d'amélioration de portée thermique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11884874B2 (en) 2017-11-14 2024-01-30 Halliburton Energy Services, Inc. Bentonite-based grouts and related methods

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US4018617A (en) * 1976-02-02 1977-04-19 Nicholson Realty Ltd. Mixture for pavement bases and the like
US5352288A (en) * 1993-06-07 1994-10-04 Dynastone Lc Low-cost, high early strength, acid-resistant pozzolanic cement
US5366548A (en) * 1991-07-05 1994-11-22 Riddle Mitchell S Volcanic fly ash and kiln dust compositions, and a process for making articles therefrom
US6251179B1 (en) 1999-03-23 2001-06-26 The United States Of America As Represented By The Department Of Energy Thermally conductive cementitious grout for geothermal heat pump systems
US6645290B1 (en) * 2001-10-09 2003-11-11 Ronald Lee Barbour Settable composition containing cement kiln dust
US20070056475A1 (en) 2005-09-09 2007-03-15 Halliburton Energy Services, Inc. Settable compositions comprising cement kiln dust and additive(s)

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US5951751A (en) * 1998-10-26 1999-09-14 Chemical Lime Company Flowable fill composition and method
DE10330008A1 (de) * 2003-07-03 2005-01-27 Heidelbergcement Ag Hydraulische Bindemittelzusammensetzung zur Bodenverbesserung und Bodenstabilisierung
US7067004B2 (en) * 2004-01-29 2006-06-27 Halliburton Energy Services, Inc. Grout compositions having high thermal conductivities and methods of using the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018617A (en) * 1976-02-02 1977-04-19 Nicholson Realty Ltd. Mixture for pavement bases and the like
US5366548A (en) * 1991-07-05 1994-11-22 Riddle Mitchell S Volcanic fly ash and kiln dust compositions, and a process for making articles therefrom
US5352288A (en) * 1993-06-07 1994-10-04 Dynastone Lc Low-cost, high early strength, acid-resistant pozzolanic cement
US6251179B1 (en) 1999-03-23 2001-06-26 The United States Of America As Represented By The Department Of Energy Thermally conductive cementitious grout for geothermal heat pump systems
US6645290B1 (en) * 2001-10-09 2003-11-11 Ronald Lee Barbour Settable composition containing cement kiln dust
US20070056475A1 (en) 2005-09-09 2007-03-15 Halliburton Energy Services, Inc. Settable compositions comprising cement kiln dust and additive(s)

Non-Patent Citations (1)

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Title
See also references of EP2480511A4 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013032536A2 (fr) * 2011-04-01 2013-03-07 Maryland Environmental Restoration Group, Inc. Coulis géothermique, procédés de production de coulis géothermique et procédés d'utilisation
WO2013032536A3 (fr) * 2011-04-01 2014-05-01 Maryland Environmental Restoration Group, Inc. Coulis géothermique, procédés de production de coulis géothermique et procédés d'utilisation
US9845423B2 (en) 2015-04-29 2017-12-19 Halliburton Energy Services, Inc. Grout fluids for use in a geothermal well loop
WO2023224847A1 (fr) * 2022-05-17 2023-11-23 Geothermic Solution, Inc. Compositions et procédés de prévention de reflux d'amélioration de portée thermique

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Publication number Publication date
AU2009352672A1 (en) 2012-04-19
AU2009352672B2 (en) 2015-06-18
EP2480511A4 (fr) 2013-08-14
EP2480511A1 (fr) 2012-08-01

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