Magnesium Compound (e.g., Vermiculite, Talc, Soapstone, Dolomite, Etc.) Patents (Class 106/801)
  • Patent number: 11325865
    Abstract: A cementitious mixture to make structures with reduction of gas permeability was disclosed. The mixture includes, cementitious materials, and one or more divalent magnesium-iron silicate that in neutral or basic aqueous solutions have the capacity to be a latent hydraulic binder comprising 2% to 99% of divalent magnesium-iron silicate by weight of total hydraulic solid materials. This can be used to produce a cementitious structure for preventing gas transfer between a first region and a second region. A cement slurry was also disclosed.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: May 10, 2022
    Assignee: RESTONE AS
    Inventors: Jill Angelique Clausen, Astri Kvassnes
  • Patent number: 10414690
    Abstract: The invention relates to a hydraulic binder consisting essentially in a hydraulically active amorphous calcium silicate phase, having in its constitution less than 20% in weight of a crystalline material. The said hydraulically active amorphous calcium silicate phase is a continuous matrix that may contain embedded fractions of crystalline material, being the overall C/S molar ratio of this hydraulic binder comprised between 0.8 and 1.25. The crystalline fraction of this material is essentially composed by wollastonite in both of its polymorphic structures, ? and ?. Furthermore, the invention relates to methods of producing the hydraulic binder by liquefying the raw materials, in a specified C/S molar ratio, followed by fast cooling to room temperature. Finally, the invention relates to a building material made by setting the binder or a mixture containing this binder with water and subsequent hardening.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: September 17, 2019
    Assignee: CIMPOR PORTUGAL, SGPS, SA.
    Inventors: Ricardo Simoes Bayao Horta, Rogerio Anacleto Cordeiro Colaco, Jose Nuno Aguiar Canongia Lopes, Rodrigo Lino Dos Santos, Joao Chaves Pereira, Paulo Jose Pires Da Rocha E Silva, Sandra Maria Martin Lebreiro
  • Publication number: 20150107494
    Abstract: The invention provides a high density cement composition for preventing gas migration. The composition includes a silica sand component, a silica flour component, a hematite component, a manganese tetraoxide component, and an expansion additive component.
    Type: Application
    Filed: September 9, 2014
    Publication date: April 23, 2015
    Inventors: Abdullah Saleh Al-Yami, Ahmad Saleh Al-Humaidi
  • Publication number: 20150060070
    Abstract: Cement compositions and methods of making the same are provided. The composition comprises cement or lime, water and Lassenite, a pozzolanic strength retrogression inhibitor.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 5, 2015
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Ramesh Muthusamy, Tushar Gosavi, Rahul Chandrakant Patil
  • Patent number: 8920550
    Abstract: The present invention relates to a new mineral matter particle hydrophobization agent and to its various uses for the surface treatment of mineral matter particles.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: December 30, 2014
    Assignee: Coatex
    Inventors: Jean-Marc Suau, Jacques Mongoin, Christian Jacquemet
  • Patent number: 8920556
    Abstract: A cementitious composition including at least one cementitious and/or pozzolanic material and at least one desugared molasses. A method of preparing a cementitious composition including forming a mixture of water, at least one cementitious and/or pozzolanic material and at least one desugared molasses. An admixture for cementitious compositions including: (i) at least one desugared molasses; and (ii) at least one alkanolamine and/or at least one polyhydroxyalkylamine.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 30, 2014
    Assignee: Construction Research & Technology GmbH
    Inventors: Samy M. Shendy, Daniel Constantiner
  • Publication number: 20140290535
    Abstract: New cement binders characterised by including: 30-80% by weight of a first component having MgO and at least one magnesium carbonate having the general formula: w MgC03.x MgO.y Mg(OH)2.z H2O (A) in which w is a number equal to or greater than 1; at least one of x, y or z is a number greater than 0 and w, x, y and z may be (but need not be) integers and 20-70% by weight of a second component including a least one silicon and/or aluminium oxide containing material are disclosed. They can be used to produce building materials (cements, mortars, grouts and the like) having improved structural properties relative to prior art materials. In particular, their manufacture is less energy intensive than e.g. Portland cement making them environmentally friendly in the sense that processes for their manufacture have a relatively low carbon footprint.
    Type: Application
    Filed: August 8, 2011
    Publication date: October 2, 2014
    Applicant: CALIX LIMITED
    Inventors: Amutha Rani Devaraj, Hai Xiang Lee, Diego Alfonso Martinez Velandia, Nikolaos Vlasopoulos
  • Publication number: 20140272439
    Abstract: Low embodied energy wallboards and methods for forming same are disclosed. A wallboard can include at least one industrial material in an amorphous phase and at least one alkali-activating agent. The amorphous phase industrial material can be slag, fly ash, silica fume, and/or lime kiln dust. The alkali-activating agent can be calcium oxide, magnesium oxide, potassium hydroxide, sodium hydroxide, calcium hydroxide, calcium carbonate, potassium carbonate, sodium carbonate, sodium sesquicarbonate, sodium silicate, calcium silicate, magnesium silicate and/or calcium aluminate. Additional wallboard components can include water, a foam filler, paper, industrial material in a crystalline phase, and/or polyethylene fibers, polypropylene fibers, and/or other synthetic fibers.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Sunder Ram, Russ Lampert, Nick Olmsted
  • Publication number: 20140238275
    Abstract: A cement composition comprises: cement; water; and an additive, wherein the additive is a pozzolan and a strength-retrogression inhibitor, and wherein a mixture consisting essentially of: the additive; water; and a source of calcium develops a compressive strength of at least 500 psi at a time of 24 hours, a temperature of 190° F., and a pressure of 3,000 psi. A method of cementing in a subterranean formation comprises: introducing the cement composition into the subterranean formation and allowing the cement composition to set. The compressive strength of the test cement composition consisting essentially of: the cement; the water; and the additive at a final time of 72 hours has a percent change greater than ?5% from the compressive strength of the test cement composition at an initial time of 24 hours when tested at a temperature of 300° F. and a pressure of 3,000 psi.
    Type: Application
    Filed: May 8, 2014
    Publication date: August 28, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Rahul C. PATIL, Ramesh MUTHUSAMY, Sheetal SINGH, Abhimanyu DESHPANDE
  • Publication number: 20140230697
    Abstract: The present invention relates to a ternesite calcium sulfoaluminate clinker as well as a ternesite clinker containing 20 to 100% by weight of C5S2$ and less than 15% by weight of C4A3$, as well as the use of ternesite as an additive to calcium sulfoaluminate (ferrite) (belite) (CSA(F)(B)) clinker, calcium sulfoaluminate (ferrite) (belite) cement, and calcium sulfoaluminate (ferrite) (belite) binder containing 10 to 90% by weight of CSA(F)(B) and 90 to 10% by weight of ternesite.
    Type: Application
    Filed: July 16, 2012
    Publication date: August 21, 2014
    Applicant: HEIDELBERGCEMENT AG
    Inventors: Frank Bullerjahn, Dirk Schmitt, Mohsen Ben Haha, Barbara Batog, Maciej Zajac
  • Publication number: 20140224156
    Abstract: A composition comprising cement and nano-sized crystalline particles of boehmite alumina or nano-sized crystalline particles of boehmite alumina which have been modified by the inclusion of silicon oxide, calcium oxide, or magnesium oxide. The boehmite alumina has an average crystallite size from about 2 nm to about 80 nm and a content of non-crystalline alumina of less than about 25 mol percent based on total aluminum.
    Type: Application
    Filed: February 12, 2014
    Publication date: August 14, 2014
    Inventors: Steven Baxter, Jeff Fenton, Reiner Glockler
  • Patent number: 8784558
    Abstract: Portland Cement-based concretes and mortars exhibit significant reduction in shrinkage cracking when combined with Magnesium Oxide (MgO), Shrinkage Reduction Admixtures (SRA) and Super Absorbent Polymers (SAP). However, MgO is a solid that reacts with water, SRA is a liquid, and SAP if not added properly could pull water out of the system and thus increase shrinkage. Unique admixture blends used as supplementary cementing materials that do not significantly affect concrete or cement strength properties of Portland cement itself address such issues. Proper ratios of MgO, SRA and/or SAP perform better against crack reduction when compared to commonly used Expansive Cements (EC).
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: July 22, 2014
    Assignee: Premier Magnesia, LLC
    Inventors: Neal Steven Berke, Glenn Eugene Schaefer, Jerry Elliot Rademan, Ronald Wardle, Mark Shand
  • Publication number: 20140170442
    Abstract: Embodiments of the invention comprise a method of making a construction board (also known as wallboard) and a device for making same. The resulting construction board is formed by mixing of at least magnesium oxide, magnesium chloride, and a binding agent into a slurry, adding particulized solid material while funneling the slurry, and extruding the slurry comprising the particulized solid material.
    Type: Application
    Filed: February 18, 2014
    Publication date: June 19, 2014
    Applicant: Temple Investments, LLC
    Inventor: Kathy Trout
  • Patent number: 8747546
    Abstract: The composition applied to the refractory structure has a magnesia-based refractory material, calcia source and a binder. After application of the refractory material to a refractory structure and upon application of heat to the applied refractory material a matrix is formed which protects against penetration of the slag into the refractory material. The resulting refractory material has improved hot strength, slag resistance and durability.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: June 10, 2014
    Assignee: Specialty Minerals (Michigan) Inc.
    Inventors: William J. Peschler, Dominick M. Colavito, Yves C. Vermeulen
  • Publication number: 20140150695
    Abstract: Embodiments of the invention comprise a method of making a construction board (also known as wallboard) and a device for making same. The resulting construction board is formed by mixing of at least magnesium oxide, magnesium chloride, and a binding agent into a slurry, adding particulized solid material while funneling the slurry, and extruding the slurry comprising the particulized solid material.
    Type: Application
    Filed: June 13, 2013
    Publication date: June 5, 2014
    Applicant: Temple Investments, LLC.
    Inventor: Kathy Trout
  • Patent number: 8691175
    Abstract: Systems, methods, and compositions are provided related to utilizing gypsum for CO2 sequestration to form solid products containing calcium carbonate.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: April 8, 2014
    Assignee: Calera Corporation
    Inventors: Teavor Kendall, William Bourcier, Peng Lu, Geoffrey Garrison
  • Patent number: 8685157
    Abstract: A composition for binding environmentally-harmful substances in solid or semi-liquid state contains caustic magnesium oxide, non-ferrous metal salts as a hardener, non-ferrous metal oxides catalyzing formation of radial crystalline structures, and optionally water and other additives. A method of stabilization of environmentally-harmful substances binds these substances in the solid state or semi-liquid state in the composition containing caustic magnesium oxide, wherein the environmentally-harmful substances are supplemented by the composition containing caustic magnesium oxide, non-ferrous metal salts as hardener, non-ferrous metal oxides catalyzing formation of radial crystalline structures, and optionally water and other additives. A form of paste is obtained, followed by leaving the mixture for solidification and stabilization of the product.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: April 1, 2014
    Assignee: Ecotech Polska SP. Z O.O.
    Inventor: Emilia Bukala
  • Publication number: 20140076204
    Abstract: The present invention relates to acid-soluble cement compositions that comprise cement kiln dust (“CKD”) and/or a natural pozzolan and associated methods of use. An embodiment includes a method of cementing comprising: placing an acid-soluble cement composition in a subterranean formation, wherein the acid-soluble cement composition comprises a hydraulic cement, a component selected from the group consisting of CKD, pumicite, and a combination thereof, and water; allowing the acid-soluble cement composition to set; and contacting the set acid-soluble cement composition with an acid to dissolve the set acid-soluble cement composition.
    Type: Application
    Filed: September 19, 2012
    Publication date: March 20, 2014
    Applicant: Halliburton Engergy Services, Inc.
    Inventors: D. Chad Brenneis, Craig W. Roddy, James R. Benkley, Preston DePlacido, William J. Caveny, Rickey L. Morgan, Ronnie G. Morgan
  • Publication number: 20140069302
    Abstract: The present invention relates to a filler or a filler mixture containing carbonate, as well as to a process for manufacturing the same by precipitating the filler directly into the pulp or, as a separate process without the presence of fibres, particularly from the wire water of the paper or board manufacture. The invention also relates to a fibre product containing this filler, such as a paper or board product, or a plastic, rubber, concrete or paint product.
    Type: Application
    Filed: December 21, 2012
    Publication date: March 13, 2014
    Applicant: NORDKALK OY AB
    Inventors: Sakari Saastamoinen, Teemu Grönblom, Lars Grönroos
  • Publication number: 20140060389
    Abstract: Embodiments relate to cementing operations and, more particularly, in certain embodiments, to settable compositions that comprise kiln dust and wollastonite and methods of use in subterranean formations. An embodiment discloses a method of cementing comprising: providing a settable composition comprising kiln dust, wollastonite, and water; and allowing the settable composition to set.
    Type: Application
    Filed: November 13, 2013
    Publication date: March 6, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Darrell Chad Brenneis, Baya Adams, Craig Wayne Roddy
  • Patent number: 8663382
    Abstract: A mixture for making a high strength phosphate cement includes monopotassium phosphate, a Group IIA metal oxide in amounts of about 20 to about 100 parts per 100 parts of the monopotassium phosphate and monocalcium orthophosphate in amounts of from about 3 to about 30 parts per 100 parts of the monopotassium phosphate. Products made from the phosphate cement have a pH of less than about 9 and the product develops a compressive strength greater than 2000 psi in 24 hours.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: March 4, 2014
    Assignee: United States Gypsum Company
    Inventor: Ashish Dubey
  • Publication number: 20140054038
    Abstract: Well cement compositions comprise water, an inorganic cement and one or more fillers having a thermal expansion coefficient (CTE) that is lower than about 3×10?6/° C. The presence of low-CTE fillers may reduce cement-sheath shrinkage when the well temperature falls during stimulation treatments, cyclic steam injection or when the well temperature reaches equilibrium at the top of a long casing string.
    Type: Application
    Filed: August 27, 2012
    Publication date: February 27, 2014
    Inventor: Simon Gareth James
  • Patent number: 8628713
    Abstract: An inorganic board contains, in a solid content ratio, 30 to 70 mass % of hydraulic material, 5 to 15 mass % of reinforcing fiber, and 1 to 30 mass % of wollastonite having a wet volume (after being allowed to stand for 30 minutes) of 15 to 45 ml. Also, a method includes: step of producing a slurry containing hydraulic material, reinforcing fiber, and wollastonite; step of producing a sheet by dehydrating the slurry; and step of pressing and curing the sheet; wherein, in the step of producing a slurry, a composition of the slurry is set so as to contain, in a solid content ratio, 30 to 70 mass % of hydraulic material, 5 to 15 mass % of reinforcing fiber, and 1 to 30 mass % of wollastonite having a wet volume (after being allowed to stand for 30 minutes) of 15 to 45 ml.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: January 14, 2014
    Assignee: Nichiha Corporation
    Inventors: Satoshi Ikeda, Yusuke Omori
  • Publication number: 20140000892
    Abstract: The present invention relates to the use of a composition for reinforcing cement, which comprises one or more compounds selected from group: a) sodium chloride, potassium chloride, magnesium chloride, calcium chloride, strontium chloride, barium chloride and ammonium chloride; b) aluminum chloride; and comprises one or more compounds selected from c) silica, zeolite, and apatite for cementing a wellbore. Moreover, the present invention relates to a cement slurry for cementing a wellbore, comprising I): cement; II) water; and III) a composition for reinforcing cement. In addition, the present invention relates to a method of cementing a wellbore.
    Type: Application
    Filed: October 18, 2012
    Publication date: January 2, 2014
    Inventor: Robin de La Roij
  • Publication number: 20140000490
    Abstract: A catalyst composition for pozzolan compositions, includes: a) one or more chlorides, selected from the group consisting of: sodium chloride, potassium chloride, magnesium chloride, calcium chloride, strontium chloride, barium chloride and/or ammonium chloride, preferably ammonium chloride; b) aluminum chloride, and c) one or more metal oxides, preferably selected from the group consisting of: oxides from metals from Group II of the Periodic Table, oxides from metals from Group VIII B of the Periodic Table (e.g. iron oxide), more preferably oxides from metals from Group II of the Periodic Table, even more preferably magnesium oxide or calcium oxide, most preferably magnesium oxide. The use of the catalytic composition for addition to cement for oil well cementing, and for lowering the pH of cement, a method for obtaining a composition for reinforcing cement, a binder composition and a construction composition are also described.
    Type: Application
    Filed: August 15, 2012
    Publication date: January 2, 2014
    Applicant: MEGA-TECH HOLDING B.V.
    Inventor: Robin DE LA ROIJ
  • Patent number: 8603237
    Abstract: Despite the excellent properties associated with Magnesium OxyChloride (Sorel) based cements and Magnesium OxySulfate based cements, water and corrosion resistance has been limiting factors for achieving greater commercial applications. Such issues can be addressed by incorporating various alkali metal phosphates, such as Magnesium mono- or dihydrogen phosphate (MgHPO4 or MgH2PO4) with alkali metal fatty acids; such as Magnesium Stearate; and metal or alkali metal sulfates such as Aluminum Sulfate or Magnesium Sulfate. Water resistance is further enhanced by either pre-carbonating the mix water or the liquid magnesium chloride phase of the cements, or by adding a carbonate into the powder phase. Accelerated cure of this system has also been obtained by using various inorganic metal oxides. Additionally, improved corrosion resistance is achieved through the use of certain phosphates, zeolites, nitrites and other novel additives.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: December 10, 2013
    Assignee: Premier Magnesia, LLC
    Inventors: Jerry Elliott Rademan, Ronald Wardle, Mark Shand
  • Patent number: 8523997
    Abstract: Embodiments of the present invention provide cellular phosphate bodies formed using specialized steps to ensure a specific strength range, and specifically a compressive strength less than 100 pounds per square inch. Further embodiments relate to uses for various phosphate ceramics as vehicle arresting systems.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: September 3, 2013
    Assignee: Engineered Arresting Systems Corporation
    Inventors: Silvia C. Valentini, Youhong Li, Anthony Mario Coratolo
  • Publication number: 20130213273
    Abstract: A process for producing a cement binder composition including one or more magnesium carbonates having the general formula w MgCO3. x MgO. y Mg(OH)2 . z H2O in which w is a number equal to or greater than 1, at least one of x, y and z is a number greater than 0 and w, x, y and z may be (but need not be) integers is described. The process is characterised by (a) heating magnesite to liberate carbon dioxide gas and produce a solid product including magnesium oxide and (b) contacting an aqueous mixture including the magnesium oxide produced in step (a) with a source of carbonate ions at a temperature in the range 25 to 120° C. to produce at least one of the magnesium carbonates.
    Type: Application
    Filed: August 18, 2011
    Publication date: August 22, 2013
    Applicant: CALIX LIMITED
    Inventor: Nikolaos Vlasopoulos
  • Patent number: 8496751
    Abstract: This invention relates to a cement binder composition and to the use of the binder composition in construction products. The cement binder composition is based on MgO that absorbs CO2 when hardening. The binder composition of the present invention also comprises at least one magnesium carbonate (either hydrated or unhydrated) having the formula xMgCO3-yMg(OH)2-zH2O, wherein x is at least 1, and at least one of y or z is greater than 0. The binder composition may optionally comprise a hydroscopic material, for example NaCl. The MgO when mixed with water in the presence of the magnesium carbonate produces magnesium hydroxide that has a rosette-like morphology (as shown).
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: July 30, 2013
    Assignee: Calix Ltd
    Inventors: Nikolaos Vlasopoulos, Christopher Robert Cheeseman
  • Patent number: 8460460
    Abstract: A cementitious composition including at least one cementitious and/or pozzolanic material and at least one desugared molasses. A method of preparing a cementitious composition including forming a mixture of water, at least one cementitious and/or pozzolanic material and at least one desugared molasses. An admixture for cementitious compositions including: (i) at least one desugared molasses; and (ii) at least one alkanolamine and/or at least one polyhydroxyalkylamine.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: June 11, 2013
    Assignee: Construction Research & Technology GmbH
    Inventors: Samy M. Shendy, Daniel Constantiner
  • Publication number: 20130118383
    Abstract: An aqueous slurry of amorphous silica, the amorphous silica having a particle size less than 1 ?m. The slurry contains sepiolite as a stabiliser.
    Type: Application
    Filed: May 16, 2011
    Publication date: May 16, 2013
    Applicant: ELKEM AS
    Inventor: Mohamed Al-Bagoury
  • Publication number: 20130098271
    Abstract: A dry mortar mixture based on at least one hydraulic and/or latently hydraulic binder which in the made-up and not yet cured state has firm properties is claimed. The novel dry mortar mixture is characterized in that it contains at least one representative of a dispersant and at least one compound having superabsorbent properties. This mixture makes it possible to carry over the advantages of known tile adhesives for horizontal application to vertical application possibilities.
    Type: Application
    Filed: October 28, 2010
    Publication date: April 25, 2013
    Inventors: Michael Eberwein, Christian Trieflinger, Michael Schinabeck, Jutta Karin Langlotz, Stefan Friedrich, Gregor Herth
  • Patent number: 8414700
    Abstract: Hydraulic cements, such as Portland cements and other cements that include substantial quantities of tricalcium silicate (C3S), dicalcium silicate (C2S), tricalcium aluminate (C3A), and/or tetracalcalcium alumino-ferrite (C4AF), are particle size optimized to have increased reactivity compared to cements of similar chemistry and/or decreased water demand compared to cements of similar fineness. Increasing hydraulic cement reactivity increases early strength development and release of reactive calcium hydroxide, both of which enhance SCM replacement and 1-28 day strengths compared to blends of conventional Portland cement and one or more SCMs, such as coal ash, slag or natural pozzolan. Decreasing the water demand can improve strength by decreasing the water-to-cement ratio for a given workability. The narrow PSD cements are well suited for making blended cements, including binary, ternary and quaternary blends.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: April 9, 2013
    Assignee: Roman Cement, LLC
    Inventors: John M. Guynn, Andrew S. Hansen
  • Patent number: 8409346
    Abstract: Waste storage vessels formed from a composition including calcium silicate, magnesium or calcium oxides and an acid phosphate are provided. The composition may also include fly ash or kaolin with or without the calcium silicate.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: April 2, 2013
    Assignee: Grancrete, Inc.
    Inventors: Jeffrey L. Selph, James W. Paul, Jr.
  • Publication number: 20130074739
    Abstract: A liquid aqueous suspension of polysaccharide, contains a mass concentration of at least one polysaccharide of between 15 and 35% in the form of partially hydrated particles dispersed in an aqueous solution of a strong base salt, excluding ammonium salts, with an ionic strength of between 1.25 mol/L and 15 mol/L, has a pH greater than 9 and contains at least one non-phyllitic crystalline mineral powder, referred to hereafter as filler, which is chemically inert in the aqueous suspension and which has a grain size of between 0.1 and 100 micrometres and an attapulgite in micronized form, the aqueous suspension being stable at least in a temperature range from 5 to 30 30° C. The suspension is suitable for use as an agent for thickening cementitious compositions.
    Type: Application
    Filed: November 21, 2012
    Publication date: March 28, 2013
    Applicants: CIMENTS FRANCAIS, C.T.G. (CENTRE TECHNIQUE DU GROUPE ITALCEMENTI)
    Inventors: C.T.G. (centre technique du groupe italcementi), CIMENTS FRANCAIS
  • Publication number: 20130059099
    Abstract: The present invention relates to a cement-free alkali-activated binder. More particularly, the present invention relates to a cement-free alkali-activated binder having a novel combination ratio, which can improve the compressive strength of mortar and concrete in which the cement-free alkali-activated binder is used as a binding material instead of cement, and which can solve the low field applicability of mortar and concrete in terms of quick setting characteristics, fluidity loss, economic efficiency and the like, and to mortar or concrete comprising the same. The cement-free alkali-activated binder can improve field applicability by controlling the content and combination ratio of an alkali activator included in the cement-free alkali-activated binder, and can solve the problems of the toxicity of cement, the carbon dioxide (CO2) produced during the manufacturing of cement and the exhaustion of natural resources due to the production of cement.
    Type: Application
    Filed: January 13, 2011
    Publication date: March 7, 2013
    Applicant: INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY
    Inventors: Jin Kyu Song, Keun Hyeok Yang
  • Patent number: 8377201
    Abstract: Hydraulic cements, such as Portland cements and other cements that include substantial quantities of tricalcium silicate (C3S), dicalcium silicate (C2S), tricalcium aluminate (C3A), and/or tetracalcalcium alumino-ferrite (C4AF), are particle size optimized to have increased reactivity compared to cements of similar chemistry and/or decreased water demand compared to cements of similar fineness. Increasing hydraulic cement reactivity increases early strength development and release of reactive calcium hydroxide, both of which enhance SCM replacement and 1-28 day strengths compared to blends of conventional Portland cement and one or more SCMs, such as coal ash, slag or natural pozzolan. Decreasing the water demand can improve strength by decreasing the water-to-cement ratio for a given workability. The narrow PSD cements are well suited for making blended cements, including binary, ternary and quaternary blends.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: February 19, 2013
    Assignee: Roman Cement, LLC
    Inventors: John M. Guynn, Andrew S. Hansen
  • Patent number: 8366821
    Abstract: A method is provided for advantageously altering the rate of hardening of a magnesium silico-phosphate cement (MSPC). Addition of on the order of 1% of an [MF6]n? salt or acid to an MSPC, obtained by adding the salt or acid either directly to the dry mix or to the water used to effect hydraulic hardening of the cement, significantly alters the hardening rate without adversely affecting the physical properties of the final set cement. In preferred embodiments, Na2TiF6 and/or K2TiF6 are used as retardants, while K3AlF6 is used as an accelerant. Other embodiments use M?n-MF6 compounds wherein M? is an alkali metal, an alkaline earth metal, or H, and M is chosen from inter alia Ti (n=2), Zr (n=2), Si (n=2), P (n=1), Al (n=3), and Sb (n=1).
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: February 5, 2013
    Assignee: IMI TAMI Institute for Research and Development Ltd.
    Inventors: Aharon Weissman, Yelena Gorelik, Eyal Yehihel Vultz, Dorit Perle, Basam Masri, Gideon Shikolsky, Ezrah Hanuka, Ron Frim, Eyal Ginzberg
  • Publication number: 20130008354
    Abstract: Provided herein are methods and systems to produce a bicarbonate solution from one or more of natural substances and to contact the bicarbonate solution with cathode electrolyte in an electrochemical system to produce a product containing carbonate or combination of carbonate and bicarbonate.
    Type: Application
    Filed: January 10, 2012
    Publication date: January 10, 2013
    Inventors: BRENT R. CONSTANTZ, William Randall Seeker, Kyle Self, Ryan J. Gilliam
  • Patent number: 8343274
    Abstract: A cement composition is made from a heat activated chemical salt selected from the group consisting of magnesium oxide, potassium oxide, sodium oxide, and calcium oxide and mixtures thereof. This activated salt is the mixed with hydraulic cement in an amount of 2½ to 3½ parts activated salt to one part hydraulic cement and the resulting mixture of hydraulic cement and activated salt is mixed with water and aggregate. In addition, industrial waste may be added to the mix in minor amounts of 5 to 30 percent.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: January 1, 2013
    Inventor: Abdullah A. Al-Yateem
  • Publication number: 20120312194
    Abstract: A method for producing a reaction product including at least one synthetic formulation that carbonates sufficiently, said method comprising: providing a first raw material, having a first concentration of M; providing a second raw material, having a second concentration of Me; and mixing the first raw material and the second raw material to produce a reaction product that includes at least one synthetic formulation having the general formula MaMebOc, MaMeb(OH)d, MaMebOc(OH)d or MaMebO(OH)d.(H2O)e, wherein M comprises at least one metal that can react to form a carbonate and Me is at least one element that can form an oxide during the carbonation reaction, wherein the at least one synthetic formulation is capable of undergoing a carbonation reaction, and wherein the at least one synthetic formulation is capable of undergoing volume change during the carbonation reaction.
    Type: Application
    Filed: June 7, 2012
    Publication date: December 13, 2012
    Applicant: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventors: Richard E. RIMAN, Thomas E. NYE, Vahit ATAKAN, Cekdar VAKIFAHMETOGLU, Qinghua LI, Ling TANG
  • Publication number: 20120298012
    Abstract: Portland Cement-based concretes and mortars exhibit significant reduction in shrinkage cracking when combined with Magnesium Oxide (MgO), Shrinkage Reduction Admixtures (SRA) and Super Absorbent Polymers (SAP). However, MgO is a solid that reacts with water, SRA is a liquid, and SAP if not added properly could pull water out of the system and thus increase shrinkage. Unique admixture blends used as supplementary cementing materials that do not significantly affect concrete or cement strength properties of Portland cement itself address such issues. Proper ratios of MgO, SRA and/or SAP perform better against crack reduction when compared to commonly used Expansive Cements (EC).
    Type: Application
    Filed: May 26, 2011
    Publication date: November 29, 2012
    Applicant: Premier Magnesia, LLC
    Inventors: Neal S. Berke, Glenn Eugene Schaefer, Jerry Elliott Rademan, Ronald Wardle, Mark Shand
  • Publication number: 20120291675
    Abstract: Provided are methods for sequestering carbon dioxide utilizing magnesium hydroxide. A recovery method and system for recovering a gaseous component is provided. Methods and systems may utilize an alkaline component produced by thermal activation of magnesium hydroxide. Compositions of sequestered carbon dioxide comprising magnesium carbonate or magnesium bicarbonate are provided.
    Type: Application
    Filed: April 5, 2012
    Publication date: November 22, 2012
    Inventors: CHRIS CAMIRE, Peng Lu, Treavor Kendall, Martin Devenney
  • Patent number: 8298328
    Abstract: A novel amorphous divalent metal ion salt for enhancing the manageability of a Portland cement and its application in dental field are disclosed. Typical formula (I), (II), or (III) of this amorphous metal ion salt are shown as following: M 2 + ? A x - ? B 2 - x - ( I ) M 2 + ? A y 2 - ? C ( 4 - y ) 4 2 - ( II ) M 2 + ? A z 3 - ? D ( 6 - z ) 9 3 - ( III ) wherein, M2+, A?, B?, C?2, D?3, x, y, and z are defined the same as the specification. A novel tooth filling material comprises: a Portland cement, a bone substitute substance, and an amorphous divalent metal ion salt with formula of (I), (II), or (III). In addition, a novel root canal filling material comprises: a Portland cement, a radiopaque substance, and an amorphous divalent metal ion salt with formula of (I), (II), or (III).
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: October 30, 2012
    Assignee: Taipei Medical University
    Inventors: Jeng-Chang Yang, Pei-Ying Lee, Dian-Yu Ji, Nai-Chia Teng, Sung-Chih Hsieh, Sheng-Yang Lee
  • Patent number: 8273172
    Abstract: A phosphate cement composition is provided. The cement composition comprises about 10 to 40 percent by weight calcium or magnesium oxide, about 10 to 40 percent by weight acid phosphate, and about 10 to 50 percent by weight vermiculite or perlite or mixture thereof.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: September 25, 2012
    Assignee: Grancrete, Inc.
    Inventors: Jeffrey L. Selph, James W. Paul, Jr.
  • Patent number: 8257485
    Abstract: The composition applied to the refractory structure has a magnesia-based refractory material, calcium carbonate and a binder. After application of the refractory material to a refractory structure and upon application of heat to the applied refractory material a matrix is formed which protects against penetration of the slag into the refractory material. The resulting refractory material has improved hot strength, slag resistance and durability.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: September 4, 2012
    Assignee: Specialty Minerals (Michigan) Inc.
    Inventors: Dominick M. Colavito, Yves C. Vermeulen
  • Publication number: 20120204764
    Abstract: A wellbore servicing method comprises converting a water into an electrochemically activated water, preparing a wellbore servicing composition comprising the electrochemically activated water, and placing the wellbore servicing composition in a wellbore. Also, cement composition comprises a cement and an electrochemically activated water.
    Type: Application
    Filed: April 24, 2012
    Publication date: August 16, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Jim Weaver, Mark Savery, Billy Slabaugh, Roger Cromwell
  • Patent number: 8236720
    Abstract: The invention relates to an unshaped refractory material comprising a refractory base component and a binder component, the binder component comprising, related to the refractory material, an acidic component of the group comprising an acid, salt of an acid, ester of an acid, salt and ester of an acid as phosphate, sulfate or carbonate, in an amount of ?1.5 wt.-% and ?6 wt.-%, and a basic component of the group comprising: base, urotropin, calcium oxide, calcium hydroxide, magnesium oxide, caustic MgO, sodium hydroxide, potassium hydroxide, magnesium hydroxide, in an amount of ?1 wt.-% and ?4 wt.-%, wherein said material receives an earth-moist, crumbly consistency by addition of 1 to 5 wt.-% of water and which solidifies after an exothermic reaction of the binder component.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: August 7, 2012
    Assignee: Refractory Intellectual Property GmbH & Co. KG
    Inventors: Bernd Petritz, Alfons Lüftenegger
  • Patent number: 8221543
    Abstract: The present invention relates to a fluoride-free solidification and hardening accelerator for hydraulic binders, comprising sulfate, aluminum and organic acid, the molar ratio of aluminum to sulfate being less than 0.83.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: July 17, 2012
    Assignee: Sika Technology AG
    Inventors: Heinz Schürch, Franz Wombacher, Benedikt Lindlar, Didier Lootens, Robert Flatt
  • Patent number: 8187589
    Abstract: The present invention relates to a process for stabilizing aqueous preparations of minerals by adding reuterin to the aqueous preparations, to the use of reuterin for the stabilization of such aqueous mineral preparations, and the aqueous mineral preparations containing reuterin.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: May 29, 2012
    Assignee: Omya Development AG
    Inventors: Patrick Schwarzentruber, Nicola Di Maiuta