Particle Size Specified Patents (Class 106/816)
  • Patent number: 10011763
    Abstract: A storable composition for oilfield application including a slurry of a carrier fluid and a particulate blend made of proppant; the particulate blend comprising at least a first amount of particulates having a first average particle size between about 100 and 5000 ?m and at least a second amount of particulates having a second average particle size between about three and twenty times smaller than the first average particle size; such that a packed volume fraction of the particulate blend exceeds 0.74 and the particulate blend volume is sufficient to substantially avoid settling of the particulate in the carrier fluid.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: July 3, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Ryan Hartman, Mohan K. R. Panga, Bruno Drochon, John W. Still, Carlos Abad, Marieliz Garcia-Lopez De Victoria, Kevin W. England, Isaac Aviles
  • Patent number: 9850363
    Abstract: Hardenable inorganic systems such as cements, plasters, ceramics or liquid silicates, usable for example in the building trade, construction industry or oil drilling industry. The insertion of carbonaceous nanofillers, such as carbon nanotubes, for reinforcing mechanical properties and improving such systems. A method for producing a master mixture including at least one superplasticizer and carbonaceous nanofillers at a mass ratio of between 0.1% and 25%, preferably between 0.2% and 20%, in relation to the total weight of the master mixture, and also to said master mixture thus obtained and to the use thereof in a hardenable inorganic system with a view to producing materials with improved properties. The disclosure applies to the construction industry, the building trade and the oil drilling industry.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: December 26, 2017
    Assignee: ARKEMA FRANCE
    Inventors: Alexander Korzhenko, Christophe Vincendeau, Anna Lushnikova, Grigory Ivanovich Yakovlev, Grigoriy Nikolayevich Pervushin, Jean-Marc Suau, David Platel
  • Patent number: 9034101
    Abstract: The method includes subjecting the pozzolans in crushed state to a high energetic mechanical processing by grinding in a grinding equipment, whereby the pozzolan particles receive mechanical impulses, and the grinding is carried out for a predetermined time resulting in a compressive strength of a 2 inch side cube of mortar having 80% Portland cement and 20% natural pozzolan in a ratio of 1:2.75 to standard sand and in addition water required to obtain a flow of the mortar according to American standard ASTM C 109, which has been properly compacted under vibration and hardened at +20° C. in sealed condition, which after 28 days is ?75% of the compressive strength of a 2 inch side cube, treated as the cube, of a mortar having a ratio of Portland cement:sand of 1:2.75 and water corresponding to 48.5% of the weight of Portland cement.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: May 19, 2015
    Assignee: PROCEDO ENTERPRISES ETABLISSEMENT
    Inventor: Vladimir Ronin
  • Patent number: 9022228
    Abstract: A domestic appliance filter for use in a laundry treatment device includes a basic filter material with a hydrophobic coating for filtering out matter from a process water duct or a process air duct. The basic filter material includes a material which is resistant to temperatures of 160° C. or more and the hydrophobic coating on the basic filter material effects a surface energy of less than 35 mN/m.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: May 5, 2015
    Assignee: BSH Bosch und Siemens Hausgeräte GmbH
    Inventor: Klaus Grunert
  • 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: 20150090160
    Abstract: A water repellent sand mixture includes at least water repellent sand and cement at a weight ratio of 2% or more and 5% or less relative to the water repellent sand. The mixture achieves condensation between the water repellent sand particles by the hydration reaction of the cement, which improves dynamic stability. The mixture can be kept in a block shape due to such improved dynamic stability, water repellency, and less slidable surfaces of the sand particles.
    Type: Application
    Filed: December 11, 2014
    Publication date: April 2, 2015
    Inventors: Akira TAOMOTO, Norihisa MINO, Shoichi KIYAMA, Akira MURAKAMI, Toshihiko KAWACHI
  • Patent number: 8979991
    Abstract: A substance that sets in a relatively short time for use in general dentistry and in endodontics to replace natural tooth material, the substance comprising untreated mineral trioxide aggregate and milled mineral trioxide aggregate, or comprising untreated mineral trioxide aggregate, milled mineral trioxide aggregate and water. A method of making a substance that sets in a relatively short time for use in general dentistry and in endodontics to replace natural tooth material, the method comprising milling by high shear and impact impingement of particles using high pressure homogenization. A method for use in general dentistry and in endodontics to replace natural tooth material.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: March 17, 2015
    Assignee: Loma Linda University
    Inventors: Mahmoud Torabinejad, Homayoun Moaddel
  • Patent number: 8974598
    Abstract: A binder premix includes from 0.2% to 63% of a material of an ultrafine particle size category, including individual particles with a D90 value less than 1 ?m and/or with a BET specific surface greater than 5 m2/g; from 8% to 63% of selected Portland cement including particles with a D90 value less than 30 ?m and from 25% to 85% of a material, other than the cement, of a fine particle size category, including particles for which the D10 and D90 values are from 1 ?m to 120 ?m and with a BET specific surface less than 5 m2/g. A binder mix including, in addition to the premix, a material of a medium particle size category, including particles for which the D10 and D90 values are from 120 ?m to 5 mm is disclosed.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: March 10, 2015
    Assignee: Lafarge
    Inventors: Philippe Fonollosa, Jean-Francois Batoz, Jeffrey Chen
  • Publication number: 20150047534
    Abstract: The invention relates to uniformed concrete comprising, in percentages by weight, (d) 87% to 98% of particles comprising more than 90 wt.-% alumina, (c) 1% to 7% silica fume particles, (f) 1% to 8% particles of a hydraulic cement, the fraction of said particles having a size less than 40 ?m being distributed as follows, in percentage by weight in relation to the weight of the unformed concrete: fraction <0.5 ?m: ?4%, fraction <2 ?m: ?5%, fraction <10 ?m: ?19%, fraction <40 ?m: 34%-52%, fraction between 2 ?m and 40 ?m: 26.5%-34%, the concentration of Zro2, in percentage by weight on the basis of the uniformed concrete, being less than 2%, and the concentration of organic fibres, in percentage by weight on the basis of the uniformed concrete, being less than or equal to 0.03%.
    Type: Application
    Filed: March 6, 2013
    Publication date: February 19, 2015
    Inventor: Thierry Claude Consales
  • Patent number: 8946396
    Abstract: An agglomerated particulate lignosulfonate material may be made by introducing or forming lignosulfonate microparticles in a fluidized bed agglomerator, and introducing sufficient heated gas and lignosulfonate liquid in the agglomerator to convert the microparticles to lignosulfonate granules of enlarged size. The granules may have an average size of at least 0.1 mm, and may be used to make a dry-blended cement additive or oil well cement that may be dustless, easily poured and stored, and rapidly dissolved in water.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: February 3, 2015
    Assignee: Borregaard Industries Limited
    Inventor: Kåre Reknes
  • Patent number: 8940670
    Abstract: Methods and compositions that comprise sub-micron alumina for accelerating setting of a cement composition. An embodiment includes a method of cementing in a subterranean formation. The method may comprise introducing a cement composition into the subterranean formation, wherein the cement composition comprises hydraulic cement, sub-micron alumina, and water. The method further may comprise allowing the cement composition to set in the subterranean formation. Another embodiment includes a cement composition that may comprise hydraulic cement, sub-micron alumina, and water.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 27, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Rahul Chandrakant Patil, B. Raghava Reddy, Abhimanyu Deshpande, Christopher L. Gordon, Craig W. Roddy, Jiten Chatterji, Roger S. Cromwell
  • Publication number: 20150000564
    Abstract: The present invention refers to a mineral matter powder preparation by wet process without acrylic additive or other grinding aid additives and to the use of said mineral matter after an optional hydrophobic treatment. Said mineral material having superior dispersing properties.
    Type: Application
    Filed: February 14, 2013
    Publication date: January 1, 2015
    Inventors: Pierre Blanchard, Jean-Pierre Elgoyhen, Beat Karth, Holger Müller, Jürgen Spehn, Martin Brunner, Pascal Gonnon, Michael Tinkl
  • Publication number: 20140345866
    Abstract: Light to ultra-light cement compositions with modified rheological properties. The cement composition includes cement, hydrophobic nano-silica, at least one additive and a sufficient amount of water to make a cement slurry with high compressive strength, low porosity, low free water, and low fluid loss with a quick thickening time.
    Type: Application
    Filed: August 6, 2014
    Publication date: November 27, 2014
    Applicant: Research Institute of Petroleum Industry
    Inventors: Hamid Soltanian, Ali Reza Mortazavi, Mohammad Javad Modjtahedi, Mahmoud Reza Badamaki, Ali Mesbah, Ali Reza Khoshniyat, Mohammad Reza Kamali
  • Publication number: 20140326168
    Abstract: Provided is a fiber reinforced cement based mixed material having high tensile strength and high toughness, the mixed material comprising a cementitious composition with fast development of early strength; a small hydration heat temperature; and a small shrinkage during curing. The fiber reinforced cement based mixed material contains 100 wt. parts of cement, 5-30 wt. parts of silica fume, 30-80 wt. parts of at least one pozzolanic material excluding the silica fume, 5-25 wt. parts of limestone powder, at least one chemical admixture, water, 70-150 wt. parts of aggregate having a largest aggregate diameter of 1.2-3.5 mm, and fibers, wherein at least some of the fibers comprise a fiber having asperities formed in the surface, the fiber having asperities being formed such that a ratio (h/H) of a depth h of each of recessed portions among the asperities to a smallest cross-sectional diameter H thereof is 0.05-0.8.
    Type: Application
    Filed: November 14, 2012
    Publication date: November 6, 2014
    Applicant: TAISEI CORPORATION
    Inventors: Yoshihiro Tanaka, Osamu Hashimoto, Jun Sakamoto, Kazuhiko Nishi
  • Patent number: 8815009
    Abstract: The present invention provides a method for making sand compositions wherein manufactured sand particles are pretreated with a clay-mitigating polycation and blended with natural sand particles that have washed to remove fines such that at least 90% of the natural sand particles are retained on a 75 micron sieve. Methods of the invention also involve the use of the blended pretreated sand for making concrete wherein the sand is combined with cement, a polycarboxylate type dispersant, a further amount of clay-mitigating polycation compound, and at least one hydryoxyl or hydroxyl carboxylic acid or salt compound.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: August 26, 2014
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Arthur Kyriazis, Bruce Perry, Eric Koehler, Leon Bablouzian
  • 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: 8668770
    Abstract: Disclosed is a dental cement composition made up of ingredients comprising the nanoparticles of dicalcium and tricalcium silicate, bismuth oxide, gypsum, zeolite and strontium carbonate. The dental cement can also be used as bone cement, pulpotomy agent, pulp capping material, dental implant material, perforation repair material, and root-end filling material.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: March 11, 2014
    Inventors: Mohammad Ali Saghiri, Mehrdad Lotfi, Houtan Aghili
  • Patent number: 8663386
    Abstract: A dry cement mix based on a hydraulic binder and a glass aggregate for forming light concretes with low thermal conductivity, characterized in that said glass aggregate comprises a fine fraction consisting of granulated aggregate with a particle size from 0.5 to 2 mm, and a coarse fraction consisting of crushed aggregate with a particle size from 4 to 20 mm, obtaining for said glass aggregate a well-defined overall particle size distribution.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: March 4, 2014
    Assignee: Italcementi S.p.A.
    Inventors: Stefano Cangiano, Alessandro Morbi
  • Patent number: 8637588
    Abstract: An optical synthetic resin composed of: a synthetic resin; and fine particles dispersed in the synthetic resin at a ratio of 0.1 vol % or more to 50 vol % or less, each having a maximum length of 1 nm or more to 30 nm or less, in which part of surfaces of the fine particles are modified with functional groups which themselves repel each other, and a distance between two arbitrary adjacent fine particles among the fine particles is in a range of 0.1 nm or more to 500 nm or less. The two arbitrary adjacent fine particles attract each other with an intermolecular force, thereby making it possible to provide an optical composite deviating from an additivity range.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: January 28, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiro Tanaka, Katsumoto Hosokawa, Kazutaka Takeuchi
  • Patent number: 8636842
    Abstract: Disclosed is a method of manufacturing an artificial stone, and the method includes forming an artificial-stone paste which comprises 20-20 parts by weight of silica stone, metakaolim or silica fume, 200-300 parts by weight of quartz chips, 30-36 parts by weight if water, 1.5-3 part by weight of water-reducing agent and 0.2-3 parts by weight of pigment with response to 100 parts by weight of white cement; injecting the artificial-stone paste in a mold; primarily vacuum-molding the artificial-stone paste injected in the mold; secondarily vibration-molding the primarily molded artificial-stone paste; primarily curing the secondarily molded artificial-stone paste; secondarily curing the primarily cured artificial-stone paste, which induces a hydrothermal reaction and thus causes a pozzolanic reaction; releasing the secondarily cured artificial-stone paste from the mold; and surface-machining the released artificial-stone paste.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: January 28, 2014
    Assignee: LG Hausys, Ltd.
    Inventor: Chang Hwan Park
  • Patent number: 8580030
    Abstract: A concrete mix useful for producing concrete products having anti-efflorescence properties and a method for making such concrete products are provided. The concrete mix includes a hydraulic cement binder, aggregates and as an additive an ultrafine particulate material including carrier particles being surface treated with an efflorescence control agent. The method for making concrete includes a first step of mixing the hydraulic cement binder, aggregates, water and the ultrafine particulate material, a second step of pouring the mixture so obtained into a form, and a third step of curing the mixture.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: November 12, 2013
    Assignee: Omya International AG
    Inventors: Berndt Kanduth, Jean-Bernard Gelinas
  • Patent number: 8574358
    Abstract: Shaped geopolymeric particles, fibers, and articles incorporating at least one geopolymer are provided; the geopolymeric particles, fibers, and articles having a structure that is solid, foamed, hollow or with one or more voids. Geopolymers are formed by alkali activation of an aluminosilicate and/or aluminophosphate material. The end-products are shaped as spheres, flakes, fibers, aggregates thereof or articles. Such products are formed at low temperatures; wherein forming includes processing using techniques such as spray drying, melt spinning, or blowing. The shaped geopolymeric particles and fibers have high chemical durability, high mechanical strength, application-targeted flowability and packing properties, and are specially suited for incorporating into composite materials, articles, and for use in cementitious, polymeric, paint, printing, adhesion and coating applications.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: November 5, 2013
    Assignee: James Hardie Technology Limited
    Inventors: Giang Biscan, Hamid Hojaji, David L. Melmeth, Thinh Pham, Huagang Zhang
  • Patent number: 8551245
    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: March 13, 2013
    Date of Patent: October 8, 2013
    Assignee: Roman Cement LLC
    Inventors: John M. Guynn, Andrew S. Hansen
  • Patent number: 8523226
    Abstract: Disclosed is a counterweight which is filled with a heavy-weight concrete containing, instead of currently used iron ores, a heavy-weight aggregate that scarcely causes the material segregation from cement paste and which can be produced at a low cost and is effectively enhanced in the filling factor of heavy-weight concrete into a case. A counterweight 6 comprises a case 62 and heavy-weight concrete filled therein, wherein the heavy-weight concrete contains a heavy-weight fine aggregate containing 20 mass % or more of aggregate particles having particle diameters of less than 0.15 mm and 20 mass % or more of aggregate particles having particle diameters of 2.5 mm to less than 5 mm.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: September 3, 2013
    Assignee: Komatsu Ltd.
    Inventors: Minoru Yoshimoto, Yasuhide Higo, Eichi Manabe, Wataru Kataoka, Kazuya Kuriyama
  • Publication number: 20130202758
    Abstract: Potassium bicarbonate is coated with an anionic or amphoteric surfactant, which is preferably a metal soap, such as calcium stearate, to inhibit caking on storage, and premature loss of carbon dioxide when mixed with acidulant, e.g. in a baking powder or self-raising flour blend. Loss of carbon dioxide in the blend may be further inhibited by coating the acidulant with surfactant. Combination of surfactant coating with an inorganic anti-caking agent such as silicon dioxide gives synergistic protection against caking of the potassium bicarbonate. Preferably the bicarbonate has D50 of between 35 and 200? and is free from particles greater than 400?.
    Type: Application
    Filed: March 16, 2011
    Publication date: August 8, 2013
    Applicant: KUDOS BLENDS LTD.
    Inventors: Daniel James Brown, Diana Jordan
  • Publication number: 20130184090
    Abstract: A method is disclosed, including providing a first mixture of cement and particulate stone material; mixing the first mixture with a predetermined amount of water for forming a second mixture; applying a layer of the second mixture to a surface located at the place where the sports area is intended to be situated; curing/setting the layer of the second mixture applied to the surface, wherein the cured layer is porous and allows water to flow through the cured layer; and applying a layer of a particle size fraction onto the cured layer after the step of curing. A mixture is also disclosed including cement and particulate stone material, wherein the mixture comprises ca. 15-40% by dry weight cement and 60-85% by dry weight particulate stone material, and wherein at least 75% of the particles of the particulate stone material are of sizes within the range 0.1-10 mm.
    Type: Application
    Filed: September 5, 2011
    Publication date: July 18, 2013
    Inventor: Martin Sternberg
  • Patent number: 8486868
    Abstract: An embodiment of the present invention comprises a method of cementing comprising: placing a settable composition into a well bore, the settable composition comprising unexpanded perlite, cement kiln dust, and water; and allowing the settable composition to set. Another embodiment of the present invention comprises a method of cementing comprising: placing a settable composition into a well bore, the settable composition comprising ground unexpanded perlite, Portland cement interground with pumicite, and water; and allowing the settable composition to set. Yet another embodiment of the present invention comprises a settable composition comprising: ground unexpanded perlite; cement kiln dust; and water.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: July 16, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Chad Brenneis, Jeffery Karcher, Craig W. Roddy
  • Publication number: 20130112114
    Abstract: The invention provides a process for the production of a cementious material. The process comprises mixing cement starting materials and a particulate healing agent to provide the cementious material. The healing agent comprises coated particles, wherein the coated particles comprise bacterial material and additive. The bacterial material is selected from the group consisting of a bacterium, a lyophilized bacterium and a bacterial spore of a bacterium. The present invention solves these problems, as (substantially leakage-proof) tablets containing the actual healing agent may neither interfere with either the workability of the liquid mixture (“cementious material”) nor negatively affect properties of either mixture or final material (hardened concrete), even when applied in large quantities. During crack formation in cementious based constructions, the particles also crack, and healing agent is released.
    Type: Application
    Filed: April 6, 2011
    Publication date: May 9, 2013
    Inventor: Hendrik Marius Jonkers
  • Patent number: 8434553
    Abstract: An embodiment of the present invention comprises a method of cementing comprising: placing a settable composition into a well bore, the settable composition comprising unexpanded perlite, cement kiln dust, and water; and allowing the settable composition to set. Another embodiment of the present invention comprises a method of cementing comprising: placing a settable composition into a well bore, the settable composition comprising ground unexpanded perlite, Portland cement interground with pumicite, and water; and allowing the settable composition to set. Yet another embodiment of the present invention comprises a settable composition comprising: ground unexpanded perlite; cement kiln dust; and water.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: May 7, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Chad Brenneis, Jeffery Karcher, Craig W. Roddy
  • Publication number: 20130104777
    Abstract: A composition used for high-strength impermeable concrete. The composition contains sand, stone, cement, water reducer, water and reinforced impermeable sand. The reinforced impermeable sand includes aeolian sand and binder covering the surface of the aeolian sand. The reinforced impermeable sand can fill the gap between the sand and the stone, and well combine various components in the composition, and suppress the seepage phenomenon of the molded concrete, thereby greatly improving the strength and impermeability of the concrete.
    Type: Application
    Filed: September 9, 2010
    Publication date: May 2, 2013
    Applicant: BEIJING RECHSAND SCIENCE & TECHNOLOGY GROUP CO., LTD.
    Inventors: Shengyi Qin, Yihai Jia, Zhenbang Wang, Huan Wang, Wenxing Hu
  • Patent number: 8426501
    Abstract: Exemplary embodiments provide materials and methods for forming CNTs-polymer composites (e.g., CNTs-SBR latex nano-composites and/or CNTs-epoxy nano-composites), CNTs-polymer concrete, and CNTs-polymer modified cementitious composites. In one embodiment, a plurality of CNTs and a surfactant-containing polymer, including a surfactant attached to a polymer chain, can be dispersed within a cementitious matrix to form a CNTs-polymer modified cementitious composite with the surfactant non-covalently bonded to one or more CNTs.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: April 23, 2013
    Assignee: STC.UNM
    Inventors: Mahmoud Reda Taha, Usama Farid Kandil, Eslam Soliman
  • 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: 8393391
    Abstract: The present invention pertains to a dry cement formulation for cementing earth boreholes, in particular oil, gas and/or terrestrial heat boreholes, containing a) about 20 to 99.9 wt. % cement, b) about 0 to 65 wt. % powdered quartz/or quartz dust, c) about 0.1 to 30 wt. % water-redispersible dispersion powder, and d) about 0 to 20 wt. % further additives. Furthermore, the invention pertains to the use of the dry cement formulation for preparing a cement slurry as well as to the use of water-redispersible dispersion powders in a cement slurry for cementing earth boreholes, wherein the cement slurries can be used for reducing the water loss of the cement slurry, for reducing the gas and/or water penetration and/or for sealing off the gas and/or water channels by means of the cement slurry which has been introduced into the borehole and has set.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: March 12, 2013
    Assignee: Akzo Nobel N.V.
    Inventors: Hongli Willimann, Franck Vallee, Charles Zhang
  • 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: 8281859
    Abstract: Methods and compositions are disclosed that comprise cement kiln dust having a mean particle size that has been altered. An embodiment discloses a subterranean treatment method comprising: introducing a treatment fluid into a subterranean formation, wherein the treatment fluid comprises cement kiln dust having a mean particle size that has been altered from its original size by grinding, separating, or a combination thereof. Another embodiment discloses a subterranean treatment method comprising: introducing a treatment fluid into a subterranean formation, wherein the treatment fluid comprises cement kiln dust having a mean particle size that has been reduced from its original size.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: October 9, 2012
    Assignee: Halliburton Energy Services Inc.
    Inventors: Craig W. Roddy, Jiten Chatterji, Chad Brenneis, Callie R. Jarratt
  • Publication number: 20120234210
    Abstract: A concrete product is produced by providing red dune sand having a particle size of 45 microns or less and mixing the red dune sand with hydraulic cement in a ratio of about 30% of the cement being replaced by the red dune sand. The cement and red dune sand are then mixed with fine and course aggregate, water and a superplasticizer and cast after pouring into a mold cavity. Then within 24 hours of casting, the cast article is steam cured for 12 hours under atmospheric pressure, demolded and placed in an auto clave at 100% humidity. The temperature in the auto clave is raised to 180° C. within one to two hours and maintained at that temperature for 4 to 5 hours. The temperature also increases the pressure to about 10 bars. The pressure is released to reach atmospheric pressure within 20-30 minutes and the temperature reduced gradually, so that the article can be removed.
    Type: Application
    Filed: June 1, 2012
    Publication date: September 20, 2012
    Applicant: KING SAUD UNIVERSITY
    Inventors: Abdulrahman M. Alhozaimy, Mohd. Saleh Jaafar, Abdulaziz I. Al-Negheimish, Jamaloddin Noorzaie
  • Publication number: 20120190769
    Abstract: Methods and compositions that comprise sub-micron alumina for accelerating setting of a cement composition. An embodiment includes a method of cementing in a subterranean formation. The method may comprise introducing a cement composition into the subterranean formation, wherein the cement composition comprises hydraulic cement, sub-micron alumina, and water. The method further may comprise allowing the cement composition to set in the subterranean formation. Another embodiment includes a cement composition that may comprise hydraulic cement, sub-micron alumina, and water.
    Type: Application
    Filed: March 30, 2012
    Publication date: July 26, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Rahul Chandrakant Patil, B. Raghava Reddy, Abhimanyu Deshpande, Christopher L. Gordon, Craig W. Roddy, Jiten Chatterji, Roger S. Cromwell
  • Publication number: 20120152154
    Abstract: Cementitious formulations and their products with enhanced reactivity are provided. Formulations in certain embodiments may include at least one calcium source, a reactant and a filler in a hydrated environment, wherein the reactant, in one form, is crystalline silica that has been modified for reactivity. Enhancement of a reactant may include one or more modifications to its content, grind and/or the cement to silica ratio, as well as addition of one or more additives in the formulation, additives in the form of at least one alumina source, defoamer, catalyst and/or a clay.
    Type: Application
    Filed: February 24, 2012
    Publication date: June 21, 2012
    Applicant: JAMES HARDIE TECHNOLOGY LIMITED
    Inventors: Xiangdong Feng, Meiling Gong, Chinmay Avinash Gowardhan, Chongjun Jiang, Michael John Julius, Amitabha Kumar, Shannon Marie Labernik, Xiangyuan Liu, Liyan Ma, Basil Taha Naji, Kalynne Hitzeman Paradis, David John Sharman
  • Publication number: 20120152153
    Abstract: A geopolymer composite ultra high performance concrete (GUHPC), and methods of making the same, are provided herein, the GUHPC comprising: (a) a binder comprising one or more selected from the group consisting of reactive aluminosilicate and reactive alkali-earth aluminosilicate; (b) an alkali activator comprising an aqueous solution of metal hydroxide and metal silicate; and (c) one or more aggregate.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 21, 2012
    Inventors: Weiliang Gong, Werner Lutze, Ian Pegg
  • Patent number: 8202614
    Abstract: Additive particles may be employed in sufficient amounts to impart superhydrophobicity to a coating system in which the additive particles are incorporated. The additive particles include carrier microparticles and a dense plurality of nanoparticles adhered to the surfaces of the carrier microparticles (e.g., preferably by electrostatic deposition or covalent bonding). The additive particles are advantageously incorporated into a coating material (e.g., a polymeric material) in amounts sufficient to render a substrate surface superhydrophobic when coated with the coating material. The substrate may be rigid (e.g., glass, ceramic or metal) or flexible (e.g., a polymeric film or sheet or a fabric). In some preferred embodiments, both the microparticle and nanoparticles are formed of silica and are surface treated with a hydrophobic treatment so as to impart superhydrophobic properties thereto.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: June 19, 2012
    Assignee: Luna Innovations Incorporated
    Inventors: Bryan E. Koene, Martin E. Rogers, Jonas C. Gunter
  • Patent number: 8172938
    Abstract: A silica cement blend having an insulating, fire retarding and high temperature characteristic capable of withstanding temperatures ranging from ambient to greater than 40000 F without degradation of the concrete structure. In addition to its high temperature capabilities the blend can be produced as ultra light weight to heavy weight concrete. The silica based mixture when added to cementitious materials such as Portland cement, Class C Fly Ash, silica fume and other cementitious materials. Presented also are methods for reducing fire damage by coating interior/exterior walls, ceiling, and roofs of a building with a water based latex coating containing a fire retardant material and low heat conductivity silicas. Methods for painting internal/external walls, ceilings, and roof are also presented.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: May 8, 2012
    Assignee: Specialty Concrete Design, Inc.
    Inventors: John Alright, David Wayne Taylor
  • Publication number: 20120042807
    Abstract: Disclosed is a thermal spray powder of granulated and sintered cermet particles. The granulated and sintered cermet particles have an average particle size of 5 to 25 ?m. The particles have a compressive strength of 50 MPa or higher. The particles have a straight ratio of 0.25 or higher, the straight ratio being defined as a value resulting from dividing the maximum thickness of a thermal spray coating obtained, when 150 grams of the thermal spray powder is subjected to thermal spot spraying, by the length of the longest of line segments each of which has both ends thereof on a contour of the spray coating. The granulated and sintered cermet particles have an average aspect ratio of preferably 1.25 or lower. The thermal spray powder is preferably used in applications where a thermal spray coating is formed by high-velocity flame spraying or cold spraying.
    Type: Application
    Filed: June 4, 2010
    Publication date: February 23, 2012
    Applicant: Fujimi Incorporated
    Inventors: Kazuto Sato, Junya Kitamura
  • Publication number: 20120032107
    Abstract: A concrete mixture for forming a breathable concrete. The mixture comprises aggregate particles and a paste comprising water, cement or cement substitute, and plasticiser. The plasticiser controls the viscosity of the paste such that the paste forms a substantially uniform layer coating the particles, with the coated particles in contact, whilst allowing spaces to be retained there between. These spaces interconnect forming channels through the concrete, allowing air to permeate there through such that the concrete exhibits good dynamic insulation properties, whist retaining structural strength.
    Type: Application
    Filed: June 23, 2009
    Publication date: February 9, 2012
    Inventors: Mohammed Imbabi, Fredrik Glasser, Jim Min Wong
  • Patent number: 8092590
    Abstract: The invention relates to a mineral, hydraulic binder for producing concrete or mortars or cement suspensions, based on at least one cement. The cement comprises clinker phases such as, C3S, C2S, C3A, and C4AF, which on reaction with water form hydrate phases that cure to form hardened cement. The cement displays a delay phase after mixing with water of some hours, e.g. from 4 to 8 hours, during which time no appreciable curing reaction takes place. The binder further comprises at least one finely divided SiO2 component and at least one finely divided CaO component, which react with make-up water during the delay phase to form calcium silicate hydrate phases that cure as a result of a pozzolanic reaction and produce early strength.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: January 10, 2012
    Assignee: Dyckerhoff AG
    Inventors: Frank Parker, Josef Strunge, Thomas Deuse
  • Patent number: 8080105
    Abstract: Methods of manufacture and use of flowable materials are provided. The flowable fill materials include a cement-based fill material with a cement component and an aggregate component that are mixed with a chemical agent and the like in water. This provides the cement-based material in a flowable state that can be controllably set over time.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: December 20, 2011
    Assignee: VCNA Prairie IP, Inc.
    Inventors: Jeffrey Jerald Krozel, Gary Lee Matney
  • Publication number: 20110232908
    Abstract: Disclosed is a weighting agent comprising processed taconite, and methods of applying the weighting agents during the completion of subterranean wells. The processed taconite is ground such that the particle-size distribution is comparable to and compatible with other suspended solids in fluids such as, but not limited to, drilling fluids, lost-circulation-control fluids, spacer fluids, cement slurries and temporary pills.
    Type: Application
    Filed: March 24, 2010
    Publication date: September 29, 2011
    Inventors: Lionel Laza, Sehgal Gopal, Orlando Tirado, Colin Archer, Emmanuel Therond, Paul George
  • Publication number: 20110232533
    Abstract: One aspect of the present invention provides a method for producing calcium silicate-based bone cement, including the steps of mixing calcium salt with silicohydrides to form a first mixture; processing the first mixture with a sol-gel process to form a second mixture; heating the second mixture to form a dried mixture; grinding the second mixture into powder; and adding the powder to water or phosphate solution.
    Type: Application
    Filed: May 19, 2011
    Publication date: September 29, 2011
    Applicant: CHUNG SHAN MEDICAL UNIVERSITY
    Inventor: SHINN JYH DING
  • Publication number: 20110183558
    Abstract: Compositions useful as coatings, wherein the compositions comprise a coating material and a material selected from the group consisting of: mortars and grouts in admixture with the coating material. The coatings may be water-based or solvent-based, and may be epoxies, polyurethanes, polyaspartic ester polymers and polyureas in some embodiments. Compositions according to the disclosure exhibit enhanced physical properties compared with the same compositions made in the absence of a mortar or a grout as an ingredient. Compositions according to some embodiments have at least one of a mortar or grout, and optionally both, evenly dispersed within the bulk of a coating material prior to its application to a substrate sufficiently that the particles of the mortar or grout, or both when both are selected to be present, are substantially completely surrounded by a curable reactive mixture that cures to form a polymeric material useful as a coating.
    Type: Application
    Filed: January 27, 2010
    Publication date: July 28, 2011
    Inventor: Patrick Ilfrey
  • Publication number: 20110073016
    Abstract: The invention has an object to provide a heavyweight fine aggregate and a heavyweight aggregate for a stiff heavyweight concrete having a slump of 0 to 3 cm, in which segregation from the cement paste is unlikely to occur, and to provide a stiff heavyweight concrete having a slump of 0 to 3 cm, using the heavyweight fine aggregate and heavyweight aggregate. The heavyweight fine aggregate comprises no less than 20 wt % of aggregate having a particle size smaller than 0.15 mm, and no less than 20 wt % of aggregate having a particle size from 2.5 mm to less than 5 mm. The above feature allows effectively inhibiting segregation between the aggregate and cement paste when blending the aggregate into the heavyweight concrete, and allows effectively increasing the filling rate in boxes when blending the aggregate into the heavyweight concrete for box filling.
    Type: Application
    Filed: January 16, 2009
    Publication date: March 31, 2011
    Inventors: Minoru Yoshimoto, Yasuhide Higo, Eichi Manabe
  • Patent number: 7910162
    Abstract: A dry, non-shrink composition which is admixed with water to cure into a hard but flexible and non-shrinking grout for laying paver stones, the dry composition comprising ingredients by percent weight of: 94-96% silica sand; 2-4% polymer powder mixture of vinyl acetate, and a vinyl ester in equal proportions, jointly polymerized using ethane; 0.5-1.5% cement; and 0.5-1.5% colorant. The dry composition is swept into joints between paver stones and water is then added to hydrate the dry mixture which forms a grouting material with interlocking physical joints to a porous material such as travertine.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: March 22, 2011
    Inventors: Bryan Cogan, Paul Malinasky