Portland Type Cement Patents (Class 106/713)
  • Patent number: 10787390
    Abstract: The invention provides novel aerated composite materials that possess excellent physical and performance characteristics of aerated concretes, and methods of production and uses thereof. These composite materials can be readily produced from widely available, low cost raw materials by a process suitable for large-scale production with improved energy consumption, desirable carbon footprint and minimal environmental impact.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: September 29, 2020
    Assignee: SOLIDIA TECHNOLOGIES, INC.
    Inventors: Omkar Deo, David Vuong, Deepak Ravikumar, Sadananda Sahu, Vahit Atakan
  • Patent number: 10720740
    Abstract: A plug includes a first member and a second member detachably connected to each other. The first member includes four conductors, which are separated from each other. The third and fourth conductors are selectively electrically connected to the first and second conductors, respectively. The second member includes four pins. The first and second pins are electrically connected to the first and second conductors, respectively, and are selectively electrically connected to the third and fourth conductors, respectively. The third and fourth pins are electrically connected to the first and second pins, respectively. The first and second pins are separated from each other, and the third and fourth pins are separated from each other. A power supply configured with the plug and a power connector are also provided.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: July 21, 2020
    Assignee: CHICONY POWER TECHNOLOGY CO., LTD.
    Inventor: Jung-Chang Lu
  • Patent number: 10647615
    Abstract: A method for producing a thermally insulating mortar includes introducing water, cement and a liquid surfactant containing a foam concentrate that forms a foam in a predetermined mixing ratio into a mixing device provided with a mixing impeller, and rotating the mixing impeller at a very high speed, wherein a homogeneous mixing between the water, the cement and the formed foam occurs.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: May 12, 2020
    Inventor: Tanja Thomas
  • Patent number: 10597328
    Abstract: A lightweight structural concrete formulation comprises a wet mix of about 460 kg/m3 of cementitious material such as ordinary Portland cement of which about 50 percent has been replaced by ground granulated basic furnace slag (GGBFS) and 7 percent by silica fume (SF) in other words the mix introduces between about 178 and 228 kg/m3 therefore the combination is good to produce secondary reaction products when the cement hydrates which produces secondary calcium silicate hydrate (C—S—H) which makes the structure dense and thereby increases its mechanical durability characteristics of the concrete product. Possible ratios of GGBFS and SF are 30-70 percent and 5-10 percent, respectively. By making the structures dense increases the mechanical and durability characteristics of the concrete product. Other ratios have been made including GGBFS of 30-70 percent and silica fume 5-10 percent, respectively.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: March 24, 2020
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Mohammed Ibrahim, Mohammed Salihu Barry, Luai M. Alhems, Aftab Ahmad, Muhammad Kalimur Rahman
  • Patent number: 10494302
    Abstract: A heavyweight concrete composition comprising cement, steel slag coarse particles, steel slag fine particles, and iron ore aggregate, a wet concrete slurry of water mixed with the heavyweight concrete composition, and a heavyweight concrete which is a cured form of the wet concrete slurry. In the present disclosure, sand, which is used in conventional concretes, is replaced with steel slag fine particles to produce a sand-free heavyweight concrete.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: December 3, 2019
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mohammed Ibrahim, Mohammed Salihu Barry, Luai M. Alhems, Muhammad Kalimur Rahman
  • Patent number: 10471483
    Abstract: An assembly and method for processing human waste includes providing a supporting base having an opening within which a waste reservoir is affixed. The assembly may be installed on or below a rim of a toilet bowl. Solidification and pathogen killing materials are provided. The materials are deposited in the reservoir either prior to or upon accumulation of waste in the reservoir. The reservoir with the solidified waste is then sealed and transported to a collection facility.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: November 12, 2019
    Assignee: Pharma-Cycle, LLC
    Inventors: James T. Mullowney, Jr., Theresa L. O'Keefe
  • Patent number: 10378219
    Abstract: An anti-explosion flooring material is disclosed. The material is prepared by foaming modification and rust prevention treatment of an iron alloy material and other auxiliary materials having components in percentage by weight: 85% of iron, 8% of manganese, 6% of silicon, and the remainder carbon. Because a foaming agent and rare earth are added, the static conducting performance of the flooring material is improved.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: August 13, 2019
    Assignee: Beijing Jinwanke decorative Engineering Company Limited
    Inventors: Hongsheng Cao, Xinmin Wang
  • Patent number: 10338053
    Abstract: The invention encompasses methods to control the curing of a CO2 Composite Material (CCM) and processes that use such equipment to cure the CCM. The method provides a way to compute the expected water distribution in an uncured porous concrete product based on a set of environmental conditions on.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: July 2, 2019
    Assignee: Solidia Technologies, Inc.
    Inventors: Vahit Atakan, Xudong Hu
  • Patent number: 9926234
    Abstract: A hydraulic binder includes, as percentage by mass: from 17 to 55% of a Portland cement, the particles of which have a D50 of from 2 ?m to 11 ?m; at least 5% of silica fume; from 36 to 70% of a mineral addition A1, the particles of which have a D50 of from 15 to 150 ?m; the sum of these percentages being from 80 to 100%; the sum of the percentages of cement and of silica fume being greater than 28%; the mineral addition A1 being selected from slags, pozzolanic additions or siliceous additions such as quartz, silico-calcareous mineral additions, calcareous additions such as calcium carbonate or mixtures thereof.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: March 27, 2018
    Assignee: LAFARGE
    Inventors: Fabrice Toussaint, Gërard Molines, Rémi Barbarulo
  • Patent number: 9738562
    Abstract: The invention provides compositions and methods directed to carbonation of a cement mix during mixing. The carbonation may be in a stationary mixer or a transportable mixer, such as a drum of a ready-mix truck.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: August 22, 2017
    Assignee: CarbonCure Technologies Inc.
    Inventors: George Sean Monkman, Kevin Cail, Paul J. Sandberg, Mark MacDonald, Joshua Jeremy Brown, Dean Paul Forgeron
  • Patent number: 9630880
    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: Grant
    Filed: June 1, 2012
    Date of Patent: April 25, 2017
    Assignee: King Saud University
    Inventors: Abdulrahman M. Alhozaimy, Mohd Saleh Jaafar, Abdulaziz I. Al-Negheimish, Jamaloddin Noorzaie
  • Patent number: 9598312
    Abstract: Provided is a method for controlling a free lime content of a clinker by regulating the free lime content. Here the amount of sulfur trioxide resulting from fuel and the used amount of a fluorine-based mineralizer are regulated using the following Formulas (1) to (3), thereby controlling the free lime content (f.CaO) of the clinker. f.CaO=0.29×e(0.65×A)(A=a×SO3+b)??(1) a=0.0001×F+9.2×t?0.18×HM?9.2??(2) b=?0.0005×F?32.8×t?2.9×HM+28.4??(3) SO3 is an amount of sulfur trioxide in the clinker; a is a coefficient satisfying Formula (2); b is a coefficient satisfying Formula (3); F is an amount of fluorine in the clinker; when a burning temperature is X° C., t=X/1450; and HM is a hydraulic modulus.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: March 21, 2017
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Yuuki Ninomiya, Hisanobu Tanaka, Makio Yamashita, Yoichiro Nakanishi
  • Patent number: 9574076
    Abstract: A mixture contains: (a) an acrylic core-shell redispersible polymer powder with a core polymer that is an acrylic having a glass transition temperature in a range of ?40 to 50 degrees Celsius and a shell polymer that is alkali soluble and contains more carboxyl-group functionalities than the core polymer and containing a nucleating agent having a boiling point of 150-500 degrees Celsius and a water solubility of 3.5 weight-percent or less; and (b) a second redispersible polymer powder selected from acetate ethylene copolymer redispersible polymer powders and polymer powders of a blend of vinyl acetate ethylene copolymer and vinyl ester of versatic acid copolymer; where the concentration of (a) is more than 20 weight-percent and less than 100 weight-percent of the total combined weight of (a) and (b). The mixture can further contain: (c) a Portland cement; (d) alumina rich cement; and (e) calcium sulfate.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: February 21, 2017
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Linda Kim-Habermehl, Mark D. Westmeyer
  • Patent number: 9512346
    Abstract: An exemplary method includes introducing a treatment fluid comprising nano-hydraulic cement into a subterranean formation. The treatment fluid may include a drilling fluid, a completion fluid, a stimulation fluid, a well clean-up fluid or a cement composition. Another example method comprises introducing a cement composition comprising nano-hydraulic cement, hydraulic cement, and water into a subterranean formation; and allowing the cementing composition to set in the subterranean formation. An example well treatment fluid comprises nano-hydraulic cement.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: December 6, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Craig W. Roddy
  • Patent number: 9464000
    Abstract: The disclosure relates to cementitious binder compositions, related concrete compositions, and related methods. The cementitious binder includes a cement augmented with particulate glass (e.g., mixed color waste glass) and a reactive particulate mineral and/or metal salt such as sodium bicarbonate or calcium carbonate. The cementitious binder can be combined with aggregate and used to form corresponding (cured) concrete compositions. Inclusion of the reactive particulate material improves the set time and early-age strength development of the cured compositions.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: October 11, 2016
    Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY
    Inventors: Parviz Soroushian, Iman Harsini, Amirpasha Peyvandi
  • Patent number: 9465022
    Abstract: A method for real-time and in-situ monitoring of freeze-thaw damage to concrete, comprising embedding pairs of gradient electrical resistance probes into a surface of concrete being monitored at a depth of 0-50 mm, the paired gradient electrical resistance probes having an anti-corrosion metal bar, with the buried depth gradient of different pairs of electrical resistance probes being in the range of 1 mm to 20 mm, and the buried depth gradient of the pair of electrical resistance probes nearest to the surface being less than 5 mm; transmitting an impedance value of the concrete measured by the paired gradient electrical resistance probes to a monitoring center for processing; and evaluating a spalling status of freeze-thaw damage to the concrete based on changes in impedance value which may be abrupt. Real-time in-situ monitoring of the freeze-thaw damage of concrete can be achieved by the electrical resistance probes and monitoring center of this invention.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: October 11, 2016
    Assignees: TSINGHUA UNIVERSITY, SHANDONG HI-SPEED QINGDAO HIGHWAY COMPANY LIMITED
    Inventors: Yong Zhou, Xingying Lu, Xinpeng Shao, Hui Ji, Baolin Guo, Xiaoqian Wang
  • Patent number: 9376609
    Abstract: Methods and compositions are disclosed that comprise interground perlite and hydraulic cement. An embodiment provides a composition comprising interground perlite and hydraulic cement. Another embodiment provides a composition comprising: interground unexpanded perlite and Portland cement, the interground having a mean particle size of about 0.5 microns to about 10 microns; and water.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: June 28, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jeffery Dwane Karcher, D. Chad Brenneis, Craig W. Roddy, James R. Benkley
  • Patent number: 9328027
    Abstract: A fast-curing pervious concrete mix made by combining: water; a cementitious material comprising portland cement and a supplementary cementitious material; aggregate sized to form a pervious concrete; a water reducer; a quantity of fibers; and a polymeric bonding agent, the mix curing to a compressive strength of at least 2,000 psi within 24 hours of placement. Also, a method of forming a pervious concrete structure by forming the fast-curing pervious concrete mix, placing the mix in a desired formation, and curing the placed mix, and a pervious concrete obtained by placing and curing the fast-curing pervious concrete mix.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: May 3, 2016
    Assignee: Hanson Aggregates LLC
    Inventor: Edward Kripavicius
  • Patent number: 9278888
    Abstract: The present disclosure relates to cement compositions comprising: (a) cement, (b) an electric arc furnace dust (EAFD), and (c) a non-chloride cement accelerator; wherein the electric arc furnace dust is present in an amount from greater than 0 wt % to 8 wt % based on the total weight of the cement (a). Also disclosed are methods for making the disclosed compositions and products using the disclosed compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: March 8, 2016
    Assignee: SAUDI BASIC INDUSTRIES CORPORATION
    Inventor: Fahad M. Al-Mutlaq
  • Patent number: 9206083
    Abstract: A shrinkage compensating concrete does not require restraint. The expansive forces developed during hydration compensate for concrete shrinkage, obviating the need for any added internal or external restraint element. Using this new shrinkage compensating concrete, substantially crack-free slabs may be built without using restraining steel bars, fibers, or other separate restraining element. The shrinkage compensating concrete includes a cement that develops internal expansive forces that never exceed the tensile strength of the concrete, such that the internal expansion compensates for the concrete shrinkage. The expansive cement may be an ASTMS, M or S cement, or other expansive cements may also be used.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: December 8, 2015
    Assignee: PKL Corporation
    Inventor: Edward K. Rice
  • Patent number: 9121675
    Abstract: This disclosure is directed to an improved ballistic concrete barrier and methods of using the barrier for training with weapons using live ammunition or grenades or other fragmentation devices.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: September 1, 2015
    Assignee: 360° Ballistics, LLC
    Inventors: Clayton Dean Amidon, Mark Alan Siver
  • Patent number: 9095815
    Abstract: A composition is produced by a hydrothermal liquid phase sintering process, and the process includes providing a porous matrix, the porous matrix having a shape, and allowing a component of the porous matrix to undergo a reaction with an infiltrating medium to form a first product, the infiltrating medium including a greenhouse gas, a remainder of the porous matrix acting as a scaffold for facilitating the formation of the first product. The composition includes the first product and the reminder of the porous matrix. The composition has a microstructure that resembles a net-like interconnecting network. The composition maintains the shape of the porous matrix. The composition is free of hydraulic bonds.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: August 4, 2015
    Assignee: Rutgers, The State University of New Jersey
    Inventors: Richard E. Riman, Vahit Atakan
  • Patent number: 9039830
    Abstract: A raw batch composition for concrete or concrete wherein the raw batch composition comprises Portland cement of about 15 wgt. % to about 45 wgt. % and dune sand preferably red dune sand is present in an amount of about 40 wgt. %. The dune sand has a particle size of less than or equal to 45 microns. The composition also includes limestone powder ranging from about 15 wgt. % to 45 wgt. % with particle sizes less than or equal to 45 microns to form a base material. To this base material suitable amounts of fine aggregate, coarse aggregate, water and superplasticizer are added. A method for producing a cast concrete product having a compressive strength of between 62 MPa and 90 MPa is disclosed. The method comprises a step of providing Portland cement, dune sand and limestone powder.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: May 26, 2015
    Assignee: King Saud University
    Inventors: Abdulrahman M. Alhozaimy, Mohd. S. Jaafar, Abdulaziz Al-Negheimish, Omer A. Alawad
  • Patent number: 9023150
    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: Grant
    Filed: September 19, 2012
    Date of Patent: May 5, 2015
    Inventors: D. Chad Brenneis, Craig W. Roddy, James R. Benkley, Preston DePlacido, William J. Caveny, Rickey L. Morgan, Ronnie G. Morgan
  • Patent number: 8992680
    Abstract: A fast hydraulic binder comprising cement, at least one first superplasticizer, a calcium salt, and at least one second superplasticizer different from the first superplasticizer and comprising a main chain and pendant groups connected to the main chain adapted so as to separate from the main chain in a basic medium, wherein the result is that the second plasticizer has a fluidifying action which increases at least temporarily over time in a basic medium.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: March 31, 2015
    Assignee: LAFARGE
    Inventors: Serge Sabio, David Rinaldi, Jean-Michel Laye, Isabelle Sgro, Horacio Naranjo, Bruno Pellerin, Pascal Boustingorry
  • Patent number: 8992679
    Abstract: Dry construction pellets that may be made by mixing predetermined portions of two or more components of cementitious materials without ingredients that would allow the mixture to cure, and separating the un-curable mixture of the two or more components into a plurality of pellets, each having substantially the predetermined portions of the two or more components. An extrusion system may include a transport line configured to transport the dry pellets in a gaseous transport stream.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: March 31, 2015
    Assignee: University of Southern California
    Inventor: Behrokh Khoshnevis
  • 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: 8979997
    Abstract: A concrete mixture for forming a breathable concrete. The mixture comprises aggregate particles and a paste comprising water, cement or cement substitute, and plasticizer. The plasticizer controls the viscosity of the paste such that the paste forms a substantially uniform layer coating the particles, with the coated particles in contact, while 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: Grant
    Filed: June 23, 2009
    Date of Patent: March 17, 2015
    Assignee: University Court of the University of Aberdeen
    Inventors: Mohammed Imbabi, Fredrik Glasser, Jim Min Wong
  • Patent number: 8974594
    Abstract: Corrosion control in reinforced concrete is generally disclosed. Some example embodiments may include concrete including aggregate, cement, and/or microcapsules distributed within the cement, where the individual microcapsules may include a high pH salt substantially contained within an acid-soluble shell. If the pH of the concrete decreases, the acid soluble shell may swell and/or dissolve, such as below a pH of about 11, which may release the high pH salt. The high pH salt may locally increase the pH of the concrete. By increasing the pH above about pH 11, corrosion of steel rebar may be prevented and/or reduced.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: March 10, 2015
    Assignee: Empire Technology Development LLC
    Inventors: Seth Miller, Thomas A. Yager
  • Patent number: 8974593
    Abstract: Cement-SCM blends employ particle packing principles to increase particle packing density and reduce interstitial spacing between the cement and SCM particles. Particle packing reduces the amount of water required to obtain a cement paste having a desired flow, lowers the water-cementitious material ratio (w/cm), and increases early and long-term strengths. This may be accomplished by providing a hydraulic cement fraction having a narrow PSD and at least one SCM fraction having a mean particle size that differs from the mean particle size of the narrow PSD cement by a multiple of 3.0 or more to yield a cement-SCM blend having a particle packing density of at least 57.0%.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: March 10, 2015
    Assignee: Roman Cement, LLC
    Inventors: John M. Guynn, Andrew S. Hansen
  • 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: 8968463
    Abstract: A material capable for trapping a flammable gas such as hydrogen comprising at least one metal oxide in a cementitious matrix is disclosed. According to some aspects, the preparation of such a material and its different uses are also disclosed.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: March 3, 2015
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: David Lambertin, Celine Cau Dit Coumes, Fabien Frizon, Christophe Joussot-Dubien
  • Patent number: 8951343
    Abstract: Ultra-high-performance cementitious materials are made using suitably functionalized and relatively low-cost carbon nanofibers and graphite platelets. Polyelectrolytes and surfactants are physisorbed upon these graphite nanomaterials in water, and dispersion of nanomaterials in water is achieved by stirring. Stable and well-dispersed suspensions of nanomaterials in water are realized without using energy-intensive and costly methods, and also without the use of materials which could hinder the hydration and strength development of ultra-high-performance cementitious materials. The water incorporating dispersed nanomaterials is then mixed with the cementitious matrix and, optionally, microfibers, and cured following standard concrete mixing and curing practices. The resulting cementitious materials incorporating graphite nanomaterials and optionally microfibers offer a desired balance of strength, toughness, abrasion resistance, moisture barrier attributes, durability and fire resistance.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: February 10, 2015
    Assignee: Metna Co.
    Inventors: Muhammad Maqbool Sadiq, Anagi Manjula Balachandra, Parviz Soroushian
  • Patent number: 8944166
    Abstract: Methods and compositions that protect cement compositions from corrosion, particularly from wet carbon dioxide, are provided. A soluble salt additive is provided to react with reaction products generated during the reactions that occur when cement is exposed to wet carbon dioxide. The soluble salt reacts to form an insoluble salt that forms a protective layer on the surface of the cement that protects it from further corrosion from exposure to wet carbon dioxide.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: February 3, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Mark Alan Vorderbruggen, Richard F. Stevens, Qi Qu
  • 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
  • Patent number: 8932400
    Abstract: Provided herein are compositions and methods including hydraulic cement, supplementary cementitious material, and/or self-cementing material. Methods for making the compositions and using the compositions are provided.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: January 13, 2015
    Assignee: Calera Corporation
    Inventors: Irvin Chen, Miguel Fernandez, Joshua Patterson, Martin Devenney
  • Patent number: 8927097
    Abstract: A molded, decorative article having a fiber-reinforced geo-composite wall with a thickness of between 4-10 mm and a method of manufacturing the same, the fiber-reinforced geo-composite wall comprising, before curing, predominately 45-55 by weight % mineral-based type III clinker, 24-28 by weight % water, and 8-9 by weight % hydration control agent, the combination of clinker, water, and hydration control agent forming a basic water-reactive rapid-setting cementious binder, the hydration control agent controlling curing time of the water-reactive rapid-setting cementious binder, 1-2 by weight % combination of micro-fibers and macro-fibers dispersed evenly within the cementious binder, the micro-fibers being 3-6 mm and the macro-fibers being 7-25 mm in length, 0.03-0.10 by weight % combination of rheology modifier, polymer modifier, and moisture retention agent, 0-0.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: January 6, 2015
    Assignee: PEBA Trading & Manufacturing Corporation
    Inventor: David R. Mune
  • Patent number: 8912255
    Abstract: The present disclosure describes a self-consolidating concrete (SCC) mixture having a compressive strength of at least 25 MPa at 28 days of age. In accordance with one embodiment, there is provided an SCC mixture, comprising: a mixture of coarse aggregate (CA), fine aggregate (FA), very fine aggregate (VFA), cementitious materials including Portland cement or Portland limestone cement, an ASTM C494 Type F polycarboxylate ether high range water reducer, and water, wherein the VFA has a particle size distribution in which 95% to 100% passes a 2.5 mm sieve and in which 20% to 100% passes a 75 ?m sieve.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: December 16, 2014
    Assignee: St. Marys Cement Inc. (Canada)
    Inventors: Mark Wells, Philip Zacarias, Bryan Schulz, Matthew Stokkermans
  • Patent number: 8882906
    Abstract: The present invention relates to a method for recycling waste water from a stainless steel slag treatment process wherein stainless steel slag is brought into contact with water, in particular to neutralize the free lime contained therein, thereby producing said waste water. This waste water contains heavy metals, including at least chromium, and has a pH higher than or equal to 11. In accordance with the invention, it is used as production water for manufacturing mortar and/or concrete. In this way, the heavy metals, which are dissolved in the waste water and thus readily available, become bound in the newly formed cement phases so that they are prevented from leaching. Moreover, it has been found that the workability of the fresh mortar or concrete and also the quality of the final mortar or concrete materials is not negatively affected by the use of this alkaline waste water and that an accelerated setting could be achieved during the first hours.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: November 11, 2014
    Assignee: Recoval Belgium
    Inventors: Dirk Van Mechelen, Isabelle Lecomie, Evelyne Nguyen
  • Patent number: 8882907
    Abstract: An additive composition for mortars, exterior insulation finish systems, self-leveling compounds and joint compounds is disclosed. The additive composition contains a nitrogen-containing polymer and a reactive agent capable of forming a crosslinking reaction with the nitrogen-containing polymer. Small amounts of the additive composition contained in a product cannot only increase one or more properties of the product but can also minimize the use of redispersible polymers in the product.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: November 11, 2014
    Assignee: Celanese International Corporation
    Inventors: Eduardo Romero-Nochebuena, Jose A. Briones, Mark G. Cupta, Philip J. Brondsema
  • Patent number: 8864903
    Abstract: Plaster compositions including at least one cement having a first particle distribution and a first mode, at least one non-reactive fine aggregate having a second particle size distribution and a second mode, at least one non-reactive coarse aggregate having a third particle size distribution and a third mode, and an unmodified, hydrophilic, starch. The first mode is greater than the second mode and less than the third mode. The combination of cement, non-reactive fine and coarse aggregates and unmodified, hydrophilic, starch produces a plaster composition having favorable properties suitable for use in providing exposed aggregate finishes used in water reservoirs, pools, and stucco finishes.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: October 21, 2014
    Assignee: SCG Cement Company Limited
    Inventors: Wilasa Vichit-Vadakan, Pichet Sahachaiyunta, Prapas Oodtiya
  • Publication number: 20140305345
    Abstract: A process for preparing a setting and hardening accelerator for mineral binders includes the following steps: a) reacting a calcium compound CV with a silicon compound SV, and b) adding an acidic compound having a molecular weight of not more than 200 g/mol, more particularly 40-100 g/mol.
    Type: Application
    Filed: December 5, 2012
    Publication date: October 16, 2014
    Inventors: Franz Wombacher, Beat Marazzani, Christian Bürge, Christophe Kurz, Gilbert Mäder
  • Patent number: 8857118
    Abstract: Hydraulic cement compositions that include a carbonate compound composition, e.g., a salt-water derived carbonate compound composition containing crystalline and/or amorphous carbonate compounds, are provided. Also provided are methods of making and using the hydraulic cements, as well as settable compositions, such as concretes and mortars, prepared therefrom. The cements and compositions produced therefrom find use in a variety of applications, including use in a variety of building materials and building applications.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: October 14, 2014
    Assignee: Calera Corporation
    Inventors: Brent R. Constantz, Cecily Ryan, Laurence Clodic
  • Patent number: 8857620
    Abstract: A cementitious composition capable of forming high early strength cement when admixed with water may comprise, for each 100% by weight, no more than about 60% by weight C3S, at least about 4% by weight C2S, and between about 7% and about 11% by weight SO3, wherein the cementitious composition has a particle size distribution such that substantially all of its particles are of a size of about 10 microns or smaller. A cementitious composition may have a ratio of weight % SO3 to weight % Al2O3 of at least about 1.5 and a particle size distribution such that substantially all of its particles are of a size of about 10 microns or smaller. An apparatus and method for making such a cementitious composition are also described.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: October 14, 2014
    Assignee: Capitol Aggregates, Inc.
    Inventors: Louis U. Spellman, Jose Garcia
  • Patent number: 8858704
    Abstract: A manufactured cementitious binder includes a hydraulic binder in an amount in the range of from 40 to 75% by weight of the cementitious binder; metakaolin in an amount in the range of from 1 to 30% by weight of the cementitious binder; silica fume in an amount up to 15% by weight of the cementitious binder; limestone in an amount of from 5 to 30% by weight of the cementitious binder, and a cementitious accelerator in a controlled amount of at least 0.5% by weight of the cementitious binder, the cementitious binder providing a cementitious settable composition when added with water, wherein for a density lower than 13 pounds per gallon and of at least 11 pounds per gallon obtained without a lightweight additive, said cementitious settable composition exhibits a 24 hour compressive strength at 100 F, as hardened, of at least 500 psi.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: October 14, 2014
    Assignee: Lafarge
    Inventors: Wes Woytowich, Bill Carruthers, Paul Lehoux, Greg Daderko
  • Patent number: 8852337
    Abstract: Provided is a fiber reinforced cement based mixed material capable of securing high tensile strength and high toughness even after development of a crack. A fiber reinforced cement based mixed material contains cement, a mineral admixture, water, a chemical admixture, aggregate particles, and fibers, the aggregate particles contained in the fiber reinforced cement based mixed material in a proportion of 50 to 95% in terms of a weight ratio to the total weight of the cement and the mineral admixture, wherein a mean particle diameter of the aggregate particles is 0.2 to 0.8 mm, and at least some of the fibers is formed to be a bumpy fiber having asperities formed in the surface thereof, and a ratio (h/H) of a depth h of each of recessed portions among the asperities of the bumpy fiber to a smallest cross-sectional diameter H thereof is 0.05 to 0.8.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: October 7, 2014
    Assignee: Taisei Corporation
    Inventors: Yoshihiro Tanaka, Osamu Hashimoto, Kazuhiko Nishi
  • Patent number: 8851746
    Abstract: A subterranean grouting method including (a) placing a sample of a grout mixture within a test container, (b) separating a sand component from the sample, (c) determining if the grout mixture exhibits a thermal conductivity within a predetermined thermal conductivity range based upon a proportion of the sand component within the sample, and (d) upon determining that the grout mixture exhibits a thermal conductivity with the predetermined thermal conductivity range, securing a conduit within a subterranean bore with the grout mixture, wherein (a), (b), (c), and (d) are carried out proximate each other at a job site.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: October 7, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ryan Patrick Collins, Shantel Stone, Laura Kuri
  • Patent number: 8828137
    Abstract: An additive composition for mortars, exterior insulation finish systems, self-leveling compounds and joint compounds is disclosed. The additive composition contains a nitrogen-containing polymer and a reactive agent capable of forming a crosslinking reaction with the nitrogen-containing polymer. Small amounts of the additive composition contained in a product not only can increase one or more properties of the product but can also minimize the use of redispersible polymers in the product.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: September 9, 2014
    Assignee: Celanese International Corporation
    Inventors: Eduardo Romer-Nochebuena, Jose A. Briones, Mark G. Cupta, Philip J. Brondsema
  • Patent number: 8808604
    Abstract: A method for manufacturing a concrete pole, includes steps of preparing a mold with PC steel bars; preparing a concrete composition comprising cement 19˜21 weight percent, Pozzolanic material 3˜5 weight percent, fine aggregate 25˜40 weight percent, natural stone aggregate 30˜45 weight percent, chemical admixture 0.3˜0.4 weight percent, inorganic pigment 0.4˜1.0 weight percent, and water 6˜7 weight percent; pouring the concrete composition into the mold; shaping the poured composition into a hollow pole; curing the shaped pole by steam at a temperature range from 75° C. to 85° C. from 6 to 8 hours; removing the mold from the cured pole; and grinding the outer surface of the pole so that the pattern and color of the natural stones are exposed on the outer surface.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: August 19, 2014
    Inventor: Yeong Ho Cho
  • Patent number: 8808449
    Abstract: A foamed concrete having a density from 100 to 800 kg/m3 including by mass relative to the total mass of the concrete: a cement; water; from 0.01 to 5% of a water-reducing agent, plasticizer or superplasticizer; from 0.45 to 5% of a foaming agent relative to the amount of water; from 0.01 to 5% of a water-soluble calcium salt; inorganic particles from 0.1 to 300 ?m in size; the ratio of foaming agent to calcium salt being from 0.3 to 0.8; the foamed concrete including 10% or more by mass of slag.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: August 19, 2014
    Assignee: Lafarge
    Inventors: Pierre-Henri Jezequel, Benoit Mathonier