With Additional Lime Patents (Class 106/710)
  • Patent number: 11390336
    Abstract: Disclosed is a balance weight of steel and heavy concrete components and a production method for the balance weight, as an alternative to pig casting and spheroidal graphite casting.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: July 19, 2022
    Inventor: Ugur Atilgan
  • Patent number: 10377668
    Abstract: A roadway construction material based on treated drill cuttings, a base or sub-base of a roadway comprising treated drill cuttings and water, and methods of making and using the roadway construction material.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: August 13, 2019
    Assignee: Racional Energy & Environment Company
    Inventor: Ramon Perez Cordoba
  • Patent number: 10357755
    Abstract: An agglomerate is provided that can include an aluminosilicate (ash) base material and one or more of a binding agent or leach reduction agent. Each of the agglomerate and binding agent can include no more than about 25 wt. % cement.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: July 23, 2019
    Assignee: ADA-ES, Inc.
    Inventors: Ramon E. Bisque, Kenneth E. Baldrey, Robin M. Stewart, George Rouse, Natalie Caro
  • Patent number: 9920395
    Abstract: A method of recovering gold from refractory ore containing a carbonaceous material, a sulfide and gold is provided. Gypsum seed crystals are added to a slurry containing a roasted refractory ore or a pressure-oxidized refractory ore to decrease gypsum encapsulation of gold and improve gold recovery.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: March 20, 2018
    Assignee: Ecolab USA Inc.
    Inventors: Ronald V. Davis, Daniel E. Child, Walter Gerlach
  • Patent number: 9895657
    Abstract: A high-efficiency method for removing sulfur and mercury of coal-fired flue gas, and an apparatus thereof. The method comprises: activating, by using water vapor, lime or Ca(OH)2 used as a sulfur removal and mercury removal absorbent and mixing the lime or Ca(OH)2 with flue gas; conveying, by using water vapor, part of a by-product to a top of a reaction tower and mixing the part of the by-product with the flue gas, so as to strengthen the sulfur removal and mercury removal effect; the flue gas entering a bag type or electric bag compound dust remover after sulfur removal and mercury removal in the reaction tower, and conveying part of the collected by-product to the reaction tower for cycle use.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: February 20, 2018
    Assignee: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCES
    Inventors: Fan Wang, Yu Liu, Fan Zhang, Gang Tian, Hongmei Wang
  • Patent number: 9662630
    Abstract: An agglomerate is provided that can include an aluminosilicate (ash) base material and one or more of a binding agent or leach reduction agent. Each of the agglomerate and binding agent can include no more than about 25 wt. % cement.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: May 30, 2017
    Assignee: ADA-ES, INC.
    Inventors: Ramon E. Bisque, Kenneth E. Baldrey, Robin M. Stewart, George Rouse, Natalie Caro
  • Patent number: 9115024
    Abstract: Microparticles having crystalline needle or rod-shaped structures of, for example, an ettringite mineral grown and attached radially from their surface. A method including nucleating and growing crystalline needles/rods from the surface of a particle in the presence of a solution of calcium, sulfur, and aluminum such as calcium sulfoaluminate, lime and calcium sulfate is described. One example is the radial growth of ettringite needles on the surface of fly ash particles in calcium sulfoaluminate-based cement paste and concrete.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: August 25, 2015
    Assignee: Macael, Inc.
    Inventors: Eric P. Bescher, Jacob W. Stremfel, Grant M. Kao, John T. Salkowski, Walter J. Hoyle, John Kenneth Vallens, Edward K. Rice
  • Publication number: 20150107491
    Abstract: A cementitious binder comprises at least 90% by weight of a hydraulically-active material comprising ground granulated blast furnace slag (GGBS) and/or pulverised fuel ash (PFA), and at least 0.1% by weight of CaO in an activator composition for the hydraulically-active material. The cementitious binder does not comprise any Portland cement and is, therefore, more environmentally friendly. The binder further comprises a superplasticiser such as a polycarboxylate ether (PCE). A concrete, mortar, grout, screed or render may be formed from a mixture of the cementitious binder, aggregate particles, water and superplasticiser.
    Type: Application
    Filed: May 31, 2013
    Publication date: April 23, 2015
    Applicant: David Ball Group
    Inventors: David Martin James Ball, Martin Liska, Peter Hewlett
  • Publication number: 20150007751
    Abstract: A method for making a low-alkali fly ash cement includes forming a mixture of class C fly ash and an aqueous solution and forming low-alkali fly ash cement from the mixture. The aqueous solution has an alkali at a molar concentration between about 0.002 M and about 2 M. A low-alkali fly ash cement includes class C fly ash and an alkali activating agent. The low-alkali fly ash cement contains between about 3×10?4 wt % alkali activating agent and about 2 wt % alkali activating agent. A method for making fly ash cement includes forming a mixture of class C fly ash and water, wet pressing the mixture and forming fly ash cement from the mixture by curing the mixture at a temperature between about 60° C. and about 90° C.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 8, 2015
    Inventors: Surojit Gupta, M. Faisal Riyad
  • Publication number: 20140245930
    Abstract: Embodiments provided herein relate to removing liquid from soil or other moisture rich media. In some embodiments, a method for solidifying sludge is provided and involves providing a sludge, fluidizing the sludge to form a fluidized sludge, adding a gelling agent to the fluidized sludge in an amount sufficient to form a slurry, and adding a dewatering agent to the slurry in an amount sufficient to dewater the slurry, thereby solidifying the sludge.
    Type: Application
    Filed: November 2, 2011
    Publication date: September 4, 2014
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Bing Chen
  • Patent number: 8741058
    Abstract: By-product materials are processed to mitigate undesirable effects. In some embodiments, industrial waste by-products are recycled using calcium polysulfide and used in building materials. In certain implementations, toxins are rendered non-viable as human pathogens by reaction with calcium polysulfide to create non-soluble sulfide crystals locked in the material as hydration is completed. The sulfides are not soluble in water and are locked into position within the resulting hydrate material, which mitigates escape of or changes of state in the toxins.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: June 3, 2014
    Inventors: James Theodore Easton, James A. Papp
  • Publication number: 20140130716
    Abstract: Methods and compositions are provided that relate to cementing operations, including a method of cementing that may comprise providing a settable composition that may comprise wollastonite, pumice, a calcium-ion source, and water, wherein the wollastonite may be present in an amount in a range of from about 25% to about 75% by combined weight of the wollastonite and pumice, and wherein the pumice may present in an amount in a range of from about 25% to about 75% by combined weight of the wollastonite and pumice. Embodiments of the method further may comprise allowing the settable composition to set.
    Type: Application
    Filed: March 22, 2013
    Publication date: May 15, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, D. Chad Brenneis, Crystal L. Keys
  • Patent number: 8663585
    Abstract: A system, method, and composition for generating a composition made from a combination of fly ash, FGD purge water, a fixation agent such as lime, and/or synthetic gypsum which, when mixed in the right proportions, results in a material that is easily handled and sets up over time in a relatively impermeable manner that significantly reduces the leaching of contaminants that would otherwise be readily available for release into the environment.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: March 4, 2014
    Assignee: Mississippi Lime Company
    Inventor: Thomas E. Siedhoff
  • Patent number: 8657951
    Abstract: A manufactured item for the building industry is disclosed, made mainly of bottom ash and/or debris coming from incineration processes of municipal solid waste or of waste which may be assimilated thereto and/or of RDF and of one or more binders. Such manufactured item may have the shape of small bricks, bricks, blocks, small blocks, curbs, interlocking paving blocks, panels, tiles, prefabricated slabs, beams, elements for walls, modular building elements, indoor and outdoor cladding elements, blocks, rocks, supports. Moreover, a process for the manufacture of an item for the building industry is disclosed, from bottom ash and/or debris coming from incineration processes of municipal solid waste or of waste which may be assimilated thereto and/or of FDR wherein the ash and/or debris undergo an oxidation process of the amphoteric metals and mixed with a binder.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: February 25, 2014
    Assignee: Petracem S.r.l.
    Inventor: Alessandro Quadrio Curzio
  • Patent number: 8657954
    Abstract: The invention relates to a mixture containing an alkali-activated aluminosilicate binder, said mixture, after hardening, containing at least 25% by weight of glass beads, based on the total mass. The hardened product has a surface which has very little tendency to soil and is easy to clean. A process for the preparation of the mixture according to the invention and the use thereof as joint filler are disclosed.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: February 25, 2014
    Assignee: Construction Research & Technology GmbH
    Inventors: Florian Ellenrieder, Michael McIlhatton, Adolf Hagner
  • Publication number: 20140034314
    Abstract: Methods and compositions for cementing are disclosed. Embodiments include a method of cementing comprising: providing a set-delayed cement composition comprising water, pumice, hydrated lime, a primary set retarder, a secondary set retarder; activating the set-delayed cement composition to produce an activated cement composition; introducing the activated cement composition into a subterranean formation; and allowing the activated cement composition to set in the subterranean formation.
    Type: Application
    Filed: October 8, 2013
    Publication date: February 6, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Samuel J. Lewis, Kyriacos Agapiou, Peter James Boul, Pauline Akinyi Otieno, Thomas Jason Pisklak, Lance Everett Brothers
  • Patent number: 8627888
    Abstract: Of the many compositions and methods provided herein, one method includes providing a settable fluid that comprises an aqueous-based medium, a lime composition, and a cementitious blend that comprises metakaolin particulates and aluminosilicate particulates, wherein the cementitious blend is essentially free of Portland cement; introducing the settable fluid into a wellbore penetrating a subterranean formation that comprises a corrosive component; and allowing the settable fluid to set therein.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: January 14, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ashok K. Santra, Krishna M. Ravi, Crystal Lynne Keys, Benjamin Iverson, Rahul Patil, Sandip Patil
  • Publication number: 20130305963
    Abstract: In a method of producing an activated construction mixture including cement, water, additives and superplasticizer the activation is performed with dimensionless criteria Reynolds and Power numbers within the limits of 20-800 and 4.0-0.1 respectively for increasing water adsorption with calcium silicate hydrate colloid formation and accelerating cement hydration.
    Type: Application
    Filed: May 20, 2012
    Publication date: November 21, 2013
    Inventor: Vladlen Fridman
  • Patent number: 8557036
    Abstract: Methods and compositions are provided that relate to cementing operations, including a method of cementing that may comprise providing a settable composition that may comprise wollastonite, pumice, a calcium-ion source, and water, wherein the wollastonite may be present in an amount in a range of from about 25% to about 75% by combined weight of the wollastonite and pumice, and wherein the pumice may present in an amount in a range of from about 25% to about 75% by combined weight of the wollastonite and pumice. Embodiments of the method further may comprise allowing the settable composition to set.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: October 15, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, D. Chad Brenneis, Crystal L. Keys
  • Publication number: 20130248183
    Abstract: Disclosed herein are cement compositions and methods of using set-delayed cement compositions in subterranean formations. A method of cementing in a subterranean formation, may comprise providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder, activating the set-delayed cement composition with a cement set activator, wherein the cement set activator comprises at least one activator selected from the group consisting of nanosilica, a polyphosphate, and combinations thereof, introducing the set-delayed cement composition into a subterranean formation, and allowing the set-delayed cement composition to set in the subterranean formation.
    Type: Application
    Filed: March 31, 2013
    Publication date: September 26, 2013
    Inventors: Thomas J. Pisklak, Kyriacos Agapiou, Pauline A. Otieno, Ronnie G. Morgan, Peter J. Boul, Lance E. Brothers
  • Publication number: 20130213275
    Abstract: A method of forming structures utilizing a hydrated lime material. A hydrated lime material is formed that is impermeable to water that is formed by subjecting a quicklime to a mixer and adding a surfactant and water to form the hydrated lime. The hydrated lime is then blended with a composite material to form a blended material that is impermeable to water. This blended material is then utilized in differing structures in order to form structures that are impermeable to water.
    Type: Application
    Filed: March 14, 2012
    Publication date: August 22, 2013
    Inventors: Gregory S. Hein, Sun Yong Kim
  • Publication number: 20130112115
    Abstract: The invention relates to CO2 capturing binder with an amortized environmental cost, the method of manufacture thereof by means of selecting, purifying and optimizing the carbide lime paste for use as a cementing material, and aggregates for the manufacture of lime paints and slurries, stuccos, mortars and concretes having multiple applications in the construction industry, in architectural restoration, in public works and land conditioning, object of the present invention. It is basically characterized in that the raw material is the residue in the form of sludge generated in the industrial manufacture of acetylene (C2H2) from calcium carbide (CaC2) the fundamental component of which is calcium hydroxide (Ca(OH)2) in highly reactive nanometric formations treated in a specific manner according to the invention.
    Type: Application
    Filed: May 4, 2010
    Publication date: May 9, 2013
    Inventors: Miguel Angel Bermejo Sotillo, Carlos Rodriguez Navarro, Encarnación Ruiz Agudo, Kerstin Elert
  • Patent number: 8409345
    Abstract: A mixture for making gaseous concrete includes Portland cement, slaked lime, ash, aluminum gas forming material, dispersed reinforcing fiber, water, and as the gas forming material and the dispersed reinforcing fiber, it contains aluminated glass fiber, with the following ratio of components in mass %: Portland cement 30-34, Slaked lime 3-4, Ash 18-22, Aluminated glass fiber 1-5, water 37-42, Hemihydrate gypsum 0.4-0.5.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: April 2, 2013
    Assignee: Malaxit
    Inventors: Galina Dubrovskaya-Vinokurova, Imia Ayaz Suleyman Ahmedov
  • Publication number: 20130043026
    Abstract: Resilient graphitic carbon may be an effective lost-circulation control agent for well-cementing compositions. During primary or remedial cementing, the carbon particles may hinder or prevent the egress of the well-cementing composition from the wellbore into subterranean formations via formation fissures or cracks. The carbon particles may also be added to spacer fluids, chemical washes or both.
    Type: Application
    Filed: August 15, 2011
    Publication date: February 21, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Salim Taoutaou, Shameed Ashraf, Khalid Abdel Hadi
  • Publication number: 20120318174
    Abstract: A sealant composition may include a fly ash, hydrated lime, and at least one filler material selected from the group consisting of sand, barite, calcium carbonate, ground marble, iron oxide, manganese oxide, glass beads, crushed glass, crushed drill cuttings, ground vehicle tire, crushed rock, ground asphalt, crushed concrete, crushed cement, salt, ilmenite, hematite, silica flour, diatomaceous earth, a highly swellable clay miner, and any derivative thereof, and wherein the fly ash and hydrated lime together are present in an amount from about 0.25% to about 30% by weight of the sealant composition.
    Type: Application
    Filed: August 30, 2012
    Publication date: December 20, 2012
    Inventors: Krishna M. Ravi, Gunnar Lende
  • Patent number: 8307899
    Abstract: The present invention is directed to plug-and-abandon operations that use plugging compositions comprising cement kiln dust, pumicite, and/or lime. An embodiment includes a method of plugging a well bore for abandonment comprising: placing a plugging composition in the well bore, the plugging composition comprising: cement kiln dust in an amount of about 5% to about 100% by weight of cementitious components, pumicite in an amount of about 5% to about 100% by weight of cementitious components, 0% to about 24% of Portland cement by weight of cementitious components, and water; and allowing the plugging composition to set and form a plug.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: November 13, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: D. Chad Brenneis, Craig W. Roddy, Jeffery D. Karcher, Callie R. Hudgins
  • Patent number: 8287783
    Abstract: A manufactured item for the building industry is disclosed, made mainly of bottom ash and/or debris coming from incineration processes of municipal solid waste or of waste which may be assimilated thereto and/or of RDF and of one or more binders. Such manufactured item may have the shape of small bricks, bricks, blocks, small blocks, kerbs, interlocking paving blocks, panels, tiles, prefabricated slabs, beams, elements for walls, modular building elements, indoor and outdoor cladding elements, blocks, rocks, supports. Moreover, a process for the manufacture of an item for the building industry is disclosed, from bottom ash and/or debris coming from incineration processes of municipal solid waste or of waste which may be assimilated thereto and/or of FDR wherein the ash and/or debris undergo an oxidation process of the amphoteric metals and mixed with a binder.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: October 16, 2012
    Assignee: Petracem S.r.l.
    Inventor: Alessandro Quadrio Curzio
  • Publication number: 20120247766
    Abstract: The present disclosure relates to geothermal grout, methods of making geothermal grout, and methods of using geothermal grout. The present disclosure is further directed to an geothermal grout with relative ease of preparation and desirable thermal conductivity while maintaining good sealant properties.
    Type: Application
    Filed: April 2, 2012
    Publication date: October 4, 2012
    Inventor: Raymond T. Hemmings
  • Publication number: 20120196046
    Abstract: Process for the preparation of a sprayable hydraulic binder composition containing as main components water, aggregates, hydraulic binder, set accelerator, characterized in, that a calcium silicate hydrate (C—S—H) containing component is added before and/or at the spray nozzle.
    Type: Application
    Filed: August 31, 2010
    Publication date: August 2, 2012
    Inventors: Luc Nicoleau, Montserrat Alfonso, Elena Kolomiets
  • Patent number: 8211394
    Abstract: A CO2 control device and method for capturing CO2 from fluid flow, including: a flow-through apparatus and an CO2 absorbing filter treated with an alkaline material which is housed within the flow-through apparatus. The flow-through apparatus receives fluid flow and the CO2 from the fluid flow is absorbed by the CO2 absorbing filter. The absorbed CO2 is converted into CaCO3 which is combined with volcanic ash to form a useful cement material.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: July 3, 2012
    Inventors: Kenneth D. Murray, Katherine A. Murray
  • Patent number: 8066813
    Abstract: A method of making a cementitious composition comprises (a) selecting at least one pozzolanic particulate material; (b) selecting and grinding at least one feldspar material to a fineness of at least 3000 Blaine; (c) mixing calcium oxide or calcium hydroxide with gypsum; (d) mixing the ground feldspar with the lime-gypsum mixture to produce an activator; (e) conditioning the pozzolanic particulate material with an aqueous solution; (f) adding the activator to the conditioned material to produce a slurry; and (g) curing the slurry in a sealed container. The pozzolanic particulate material can be slag, fly ash, or siliceous rock. A cementitious composition of the invention comprises a pozzolanic particulate material, a ground feldspar material, a lime compound and gypsum, and uses readily available materials, as an economic replacement for Portland cement, fly ash or other materials in filling, backfilling and paving, particularly for backfilling or stabilizing mine sites.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: November 29, 2011
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of Natural Resources
    Inventor: Allen Pratt
  • Patent number: 7914758
    Abstract: A CO2 control device and method for capturing CO2 from fluid flow, including: a flow-through apparatus and an CO2 absorbing filter treated with an alkaline material which is housed within the flow-through apparatus. The flow-through apparatus receives fluid flow and the CO2 from the fluid flow is absorbed by the CO2 absorbing filter. The absorbed CO2 is converted into CaCO3 which is combined with volcanic ash to form a useful cement material.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: March 29, 2011
    Inventors: Kenneth D. Murray, Katherine A. Murray
  • Publication number: 20110048286
    Abstract: A method of making a cementitious composition comprises (a) selecting at least one pozzolanic particulate material; (b) selecting and grinding at least one feldspar material to a fineness of at least 3000 Blaine; (c) mixing calcium oxide or calcium hydroxide with gypsum; (d) mixing the ground feldspar with the lime-gypsum mixture to produce an activator; (e) conditioning the pozzolanic particulate material with an aqueous solution; (f) adding the activator to the conditioned material to produce a slurry; and (g) curing the slurry in a sealed container. The pozzolanic particulate material can be slag, fly ash, or siliceous rock. A cementitious composition of the invention comprises a pozzolanic particulate material, a ground feldspar material, a lime compound and gypsum, and uses readily available materials, as an economic replacement for Portland cement, fly ash or other materials in filling, backfilling and paving, particularly for backfilling or stabilizing mine sites.
    Type: Application
    Filed: February 24, 2009
    Publication date: March 3, 2011
    Inventor: Allen Pratt
  • Publication number: 20110020199
    Abstract: The present invention provides reagents that may be useful for treating wastes such as impure aqueous materials including wastewater to remove a significant proportion of the heavy metals that may be contained therein. The reagents include a calcium aluminosilicate (CAS) source and may include one or more of the following elements as an oxide: calcium oxide, aluminum oxide, silicon oxide, iron oxide, magnesium oxide, sodium oxide, potassium oxide, and sulfate. Further, the reagent comprises lime either as CaO or Ca(OH)2. In addition, the invention proyides methods for treating wastes such as impure aqueous materials to remove a significant proportion of the heavy metals contained therein.
    Type: Application
    Filed: June 11, 2010
    Publication date: January 27, 2011
    Inventors: Raymond T. Hemmings, Bruce J. Cornelius
  • Publication number: 20100313795
    Abstract: A high early strength pozzolan cement includes larger sized pozzolan particles blended with smaller sized hydraulic cement particles containing tricalcium silicate and/or dicalcium silicate (e.g., Portland cement). Excess calcium release from the hydraulic cement when mixed with water forms calcium hydroxide available for reaction with the pozzolan. The fineness of the hydraulic cement particles is substantially greater than the fineness of the pozzolan particles (e.g., about 1.25 to about 50 times greater). Reducing or eliminating coarse hydraulic cement particles that cannot fully hydrate but include unreacted cores reduces or eliminates wasted cement normally found in concrete. Replacing some or all of the coarse cement particles with pozzolan particles provides a pozzolan cement composition having significantly lower water demand compared to the hydraulic cement by itself.
    Type: Application
    Filed: August 2, 2010
    Publication date: December 16, 2010
    Applicant: Roman Cement, LLC
    Inventors: John M. Guynn, Andrew S. Hansen
  • Patent number: 7677786
    Abstract: There is provided a process for producing concrete, comprising: in producing concrete, previously providing at least one premix composition for a concrete mix, which has been measured and prepared by automatic control means according to properties required of the concrete; and kneading and mixing the previously provided premix composition for a concrete mix with cement, coarse aggregate, fine aggregates, and water.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: March 16, 2010
    Assignee: Yugen Kaisha Sanblen
    Inventors: Shinji Uno, Haruyo Uno
  • Patent number: 7320729
    Abstract: A water and flame resistant dry mix stucco is disclosed. The dry mix stucco includes water and flame resistant materials as an integral part of the mixture. The dry mix stucco is combined with water and applied to structures.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: January 22, 2008
    Inventors: Amil Fornatora, Michael Lindner
  • Publication number: 20070289503
    Abstract: Method to manufacture useful building bricks, blocks and elements by pressing granulated or partly granulated material comprising fly ash that may vary in quantity up to 92% of by weight, and cement. The average apparent density of the building materials may vary from aerated concrete density, which is 0.8 to 1.52 gram per cubic centimetre. The granulated or partly granulated mixture is formed to brick, block or element in a press, characterizing the process, suitable to compact the material under specific pressures varying up to 35 Newton per square millimetre of mixture mass. The press is of the type known as Sand Lime Brick press. The moisture content of to compress and to form mass may not exceed 13%, to enable the automatically working clamp of the press to take off rows of building blocks and the like and to place the rows on top of each other on a hardening car. Hardening of the products takes place under known cement hardening conditions.
    Type: Application
    Filed: June 20, 2006
    Publication date: December 20, 2007
    Inventors: Hendrik Loggers, Gijsbert Versteeg
  • Patent number: 7160383
    Abstract: A dry mix particulate composition of a calcined oxide of Mg and/or Ca, an acid phosphate, and fly ash or equivalent, wherein the calcined oxide is present in the range of from about 17% to about 40% by weight and the acid phosphate is present in the range of from about 29% to about 52% by weight and the fly ash or equivalent is present in the range of from about 24% to about 39% by weight when sand is added to the dry mix, it is present in the range of from about 39% to about 61% by weight of the combined dry mix and sand. A method of forming a structural member is also disclosed wherein an aqueous slurry of about 8–12 pounds of water is added to dry mix and sand.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: January 9, 2007
    Assignee: UChicago Argonne, LLC
    Inventors: Arun S. Wagh, James W. Paul, Jr.
  • Patent number: 7008478
    Abstract: The present invention relates to a composite of consolidation-hardening pile for soft ground and in which a composition ratio of an aggregate:a quicklime:an additive is 50–60 wt %:20–25 wt %:20–25 wt %, and the additive is an admixture made by mixing a powder of furnace slag, a fly ash or a mixture of the powder of furnace slag and the fly ash in a cement, the ratio of the cement, and the powder of furnace slag, the fly ash or the mixture of the powder of furnace slag aggregate and the fly ash is 65–85 wt %:15–35 wt %. As the pile is formed in the soft ground vertically, a composite has a strength of 50 kgf/cm2 or over to act as a supporting pile for sinking, and a reinforcing pile.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: March 7, 2006
    Assignee: Mirae Environment and Construction Co., Ltd.
    Inventor: Kyung Tae Park
  • Patent number: 6716282
    Abstract: Oil-based settable spotting fluid compositions for cementing in wells and subterranean formations are provided. The oil-based settable spotting fluid compositions basically comprise an oil external emulsion comprising oil, water and an emulsifying surfactant, a hydraulically settable component and a de-emulsifying surfactant for de-emulsifying the oil-external emulsion when the emulsion is cured.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: April 6, 2004
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James E. Griffith, Jiten Chatterji, Bobby J. King, John L. Dennis, Jr.
  • Patent number: 6679823
    Abstract: A supplemental agent for a hazardous waste composition containing electric arc furnace dust (EAFD) includes potassium magnesium sulfate or a magnesium salt such as magnesium sulfate or magnesium chloride. The supplemental agent when mixed with EAFD and water, along with either lime inherent within the EAFD or added lime, reduces the leaching of heavy metals from the waste composition over a wide range of leaching conditions, including both acidic, neutral, and alkaline environments. The method for reducing the concentration of heavy metals in a leachate from the EAFD involves forming a mixture of EAFD, water, the supplemental agent, and, optionally, ferrous sulfate, along with lime, then permitting the mixture to react.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: January 20, 2004
    Assignee: Envirosafe Services of Ohio, Inc.
    Inventor: Charles L. Smith
  • Publication number: 20030227814
    Abstract: Producing both colored and noncolored lightweight aggregates. The processes involve mixing a lightweight fine material such as ash with cement, and optionally pigment, then agglomerating the mixture, curing, and sizing the lightweight aggregate. Calcium stearate is added to the lightweight aggregate for reducing the moisture permeability of the lightweight aggregate end product. The colored and noncolored lightweight aggregate may be used in a variety of ways such as to provide a lightweight concrete mix with the same exterior and interior color, and for other asphalt pavement, geotechnical, horticulture, and specialty uses.
    Type: Application
    Filed: June 10, 2002
    Publication date: December 11, 2003
    Inventors: Michael Priesnitz, Thomas D. Hubbard, William B. Johnson
  • Patent number: 6638355
    Abstract: A synthetic aggregate having a multiplicity of uses such as for mixing with a cementing material to form concrete, mortar or plaster is disclosed. The aggregate includes crushed fragments of a size which are capable of passing through mesh screen having sieve openings ranging from between about 19 mm and 75 microns. The aggregate fragments are made by curing and then crushing a compressed product. The compressed product is made by compressing an aqueous cementitious mixture comprising cement and at least one member selected from the group consisting of bottom ash and non-cementitious fly ash. The compressed product is cured so that it has a compressive strength of at least 600 psi.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: October 28, 2003
    Inventor: David M. Shulman
  • Publication number: 20030154887
    Abstract: A synthetic slag is produced by a high temperature combustion reaction between coal ash having a high carbon content, and a source of lime such as cement kiln dust. The carbon content of the coal ash is oxidized by oxygen gas, which typically is derived from air or an air/oxygen combination in an exothermic reaction and the heat generated is exploited in the melting process. In this way the gaseous products will typically comprise nitrogen, unreacted oxygen and carbon dioxide, and heat energy can be readily recovered from the hot off gas products evolving during the combustion reaction. The synthetic slag may be pelletized and employed as lightweight mineral aggregate or milled to cement fineness to provide slag cement.
    Type: Application
    Filed: February 15, 2002
    Publication date: August 21, 2003
    Inventors: David Bridson Oates, John Graham Whellock, Philip Souza Zacarias
  • Publication number: 20030116065
    Abstract: Methods for drilling well bores and cementing a pipe string in the well bores using oil-based settable drilling fluids are provided. The oil-based settable drilling fluid compositions basically comprise an oil external emulsion comprising oil, water and an emulsifying surfactant; a hydraulically settable component; and a de-emulsifying surfactant for de-emulsifying the oil-external emulsion when the emulsion is cured.
    Type: Application
    Filed: December 16, 2002
    Publication date: June 26, 2003
    Inventors: James E. Griffith, Jiten Chatterji, Bobby J. King, John L. Dennis
  • Patent number: 6554894
    Abstract: A masonry cement composition is provided which contains a blend of fly ash, Portland cement, a retarding agent, and an air entrainment agent. The masonry cement composition may be formed into a mortar having a high air content which exhibits good compressive strength and does not exhibit efflorescence.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: April 29, 2003
    Assignee: Mineral Resource Technologies, LLC
    Inventors: Robert William Styron, Richard George Basaraba, James Kenneth Hicks
  • Patent number: 6528547
    Abstract: A synthetic aggregate having a multiplicity of uses such as for mixing with a cementing material to form concrete, mortar or plaster is disclosed. The aggregate includes crushed fragments of a size which are capable of passing through mesh screen having sieve openings ranging from between about 19 mm and 75 microns. The aggregate fragments are made by curing and then crushing a compressed product. The compressed product is made by compressing an aqueous cementitious mixture comprising cement and at least one member selected from the group consisting of bottom ash and non-cementitious fly ash. The compressed product is cured so that it has a compressive strength of at least 600 psi.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: March 4, 2003
    Inventor: David M. Shulman
  • Patent number: 6524384
    Abstract: Oil-based settable spotting fluid compositions and methods of using the compositions are provided. The oil-based settable spotting fluid compositions are basically comprised of oil, an emulsifying surfactant for emulsifying the oil with water whereby an oil-external emulsion is formed, a de-emulsifying surfactant which in time de-emulsifies said oil-external emulsion when the emulsion is contacted with external water, a hydraulic settable component selected from the group consisting of ASTM Class C or the equivalent fly ash and ASTM Class F or the equivalent fly ash together with a source of calcium and water selected from the group consisting of fresh water and salt water.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: February 25, 2003
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James E. Griffith, Ricky A. Cox, Jiten Chatterji, John L. Dennis, Jr.
  • Publication number: 20020017224
    Abstract: A method for the treatment of fly ash to remove carbon and other matter. The resulting treated fly ash has a fine particle size and low carbon content and is useful in cementitious compositions. Other useful by-products, such as commerial grade cenopheres, can also be recovered.
    Type: Application
    Filed: April 25, 2001
    Publication date: February 14, 2002
    Inventor: Robert Horton