Patents Examined by Karam Hijji
  • Patent number: 9796622
    Abstract: The invention provides a low density cement composition. The composition includes a cement component, a glass sphere component, a bentonite component, a fine calcium carbonate component, a medium calcium carbonate component, a silica sand component, and a silica flour component.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: October 24, 2017
    Assignee: Saudi Arabian Oil Company
    Inventors: Abdullah Selah Hussain Al-Yami, Ahmad Saleh Al-Humaidi, Salah Hamad Al-Saleh, Turki Thowini Mohammad AlSubaie
  • Patent number: 9732002
    Abstract: A low-density, high-strength concrete composition that is both self-compacting and lightweight, with a low weight-fraction of aggregate to total dry raw materials, and a highly-homogenous distribution of a non-absorptive and closed-cell lightweight aggregate such as glass microspheres or copolymer polymer beads or a combination thereof, and the steps of providing the composition or components. Lightweight concretes formed therefrom have low density, high strength-to-weight ratios, and high R-value. The concrete has strength similar to that ordinarily found in structural lightweight concrete but at an oven-dried density as low as 40 lbs./cu.ft. The concrete, at the density ordinarily found in structural lightweight concrete, has a higher strength and, at the strength ordinarily found in structural lightweight concrete, a lower density. Such strength-to-density ratios range approximately from above 30 cu.ft/ to above 110 cu.ft/, with a 28-day compressive strength ranging from about 3400 to 8000 psi.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: August 15, 2017
    Inventor: Randall Lee Byrd
  • Patent number: 9725369
    Abstract: Methods and an associated system for processing unhardened concrete are disclosed. With these methods, the porosity of the unhardened concrete is significantly increased to decrease the strength so much that it can be easily broken up for sale or reuse. In at least one embodiment, the method includes adding a large volume of foam to the returned unhardened concrete and then mixing the foam with the returned concrete in the ready-mix concrete truck or other concrete mixing devices at any location including the jobsite, enroute to the concrete plant, or at the concrete plant. Through the mixing of foam with the returned concrete, the hydrated cement and aggregate particles are separated by large volumes of air voids, which significantly increase the porosity and dramatically reduce the strength of the returned concrete. The treated concrete is discharged and allowed to solidify in this weakened state, after which it is easily broken into loose particulate material that can be sold or reused.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: August 8, 2017
    Assignee: CRISPYCRETE, LLC
    Inventor: Charles H. Bell, Jr.
  • Patent number: 9725906
    Abstract: A dry papercrete mix containing a pulp of fiber material such as newsprint and sharp sand, Portland cement and adding additional sand and/or pumice. The resulting dry, granular mix can then be handled stored and used in the manner which is conventional for concrete. The dry papercrete mix can be fortified with a fiber form of basalt which can be added to or substituted for all or a portion of the cellulose fiber content of the dry papercrete mix to provide a stronger structure when hydrated and cast into a desired shape with only a small increase in weight. Basalt reinforcing bars and meshes may be included in shapes cast from the hydrated mix in combination with or substitution for steel reinforcing structures. Including basalt in the mix and in reinforcing systems allows the design of joints between structural modules to provide exceptional strength in a unitary structure so formed.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: August 8, 2017
    Inventor: James Robert Brock
  • Patent number: 9676668
    Abstract: A dry mix for a composite cement is described. The dry mix includes a calcium-containing material, an aluminum-containing material, a lithium-containing accelerant, a retarder, and a pozzolanic additive that contains a soluble sulfur salt. The pozzolanic additive preferably includes a soluble sulfur salt at a fraction greater than approximately 0.2% by weight. The pozzolanic additive may be a fly ash, and is preferably a class C fly ash. A powdered additive for use with a pre-prepared dry mix for a calcium aluminate cement is also described. The powdered additive includes a lithium-containing accelerant, a retarder, and a pozzolanic additive that contains a soluble sulfur salt.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: June 13, 2017
    Assignee: REDI-MIX, LLC
    Inventors: Clinton Wesley Pike, Gerald Thomas Gaubert, Jr., Armando Perez Barcenas
  • Patent number: 9650294
    Abstract: This burned cement clinker is a burned cement clinker including at least one selected from the group consisting of fluorine, sulfur, chlorine and bromine, and at least one metallic element(s) selected from the group consisting of elements in groups 3 through 12 of the periodic table. Preferably, the amount of fluorine is within a range from 300 to 750 mg/kg, the amount of sulfur (expressed in terms of SO3) is within a range from 1.5 to 3.0% by mass, the amount of at least one chlorine equivalent(s) selected from the group consisting of chlorine and bromine is within a range from 150 to 350 mg/kg, and the amount of at least one metallic element selected from the group consisting of elements in groups 3 through 12 of the periodic table is within a range from 0.2 to 0.8% by mass.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: May 16, 2017
    Inventors: Makio Yamashita, Yoichiro Nakanishi, Hisanobu Tanaka
  • Patent number: 9631093
    Abstract: Compositions and methods for reducing the foul odors of a hydrocarbonaceous material such as asphalt comprise the addition of an odor reducing amount of a reducing carbohydrate and/or a soluble zinc compound. The reducing carbohydrate may be a monosaccharide, oligosaccharide or polysaccharide, including a starch; and it may be used as a sole odor reducing agent or in combination with soluble zinc compounds and/or other odor reducing compounds.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: April 25, 2017
    Assignee: Owens Corning Intellectual Capital, LLC
    Inventor: Robert Edwin Quinn
  • Patent number: 9604880
    Abstract: A method of controlling the setting time of a geopolymer by coating aluminosilicate particles with nanoparticles to slow the geopolymerization reaction. The coating effectiveness of the nanoparticles may be enhanced by pretreating the aluminosilicate particles with a layer-by-layer assembly of polyelectrolytes. A geopolymer is formed by mixing about 39% to about 66% by weight aluminosilicate source, about 0% to about 40% by weight sand, about 19% to about 33% by weight of alkali activator solution, and about 1% to about 4% nanoparticles.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: March 28, 2017
    Assignee: Louisiana Tech Research Corporation
    Inventors: Erez Allouche, Yuri Lvov, Carlos Montes, Anupam Joshi
  • 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
    Inventors: Yuuki Ninomiya, Hisanobu Tanaka, Makio Yamashita, Yoichiro Nakanishi
  • Patent number: 9567262
    Abstract: A process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound, said reaction being effected in the presence of a water-soluble dispersant having at least one polyalkyleneglycol structural unit with a functional group at one end of the polyalkyleneglycol, being able to interact as an anchor group with the surface of cement particles, the hardening accelerator composition and its use.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: February 14, 2017
    Assignee: Construction Research & Technology GmbH
    Inventors: Luc Nicoleau, Gerhard Albrecht
  • Patent number: 9527772
    Abstract: A treatment process for the production of a hydraulic composition with entrained air including at least one admixture and a constituent including carbonaceous materials, the process including: obtaining a representative value of the adsorption of probe molecules by the carbonaceous materials; and producing the hydraulic composition or treating the constituent with a quantity of admixture which depends on the value.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: December 27, 2016
    Assignee: LAFARGE
    Inventors: Sébastien Georges, Emmanuel Villard, Alain Jacquet, Laurent Barcelo, Anik Delagrave
  • Patent number: 9527771
    Abstract: A composition comprising a metallic composition, an inorganic oxide-based polymer, and a solvent. A cure product of the metallic composition, inorganic oxide-based polymer, and solvent, the cure product having a network structure, are also disclosed.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: December 27, 2016
    Inventors: James B. Crews, Othon Rego Monteiro
  • Patent number: 9499742
    Abstract: The method for enhancing strength and durability of weak soils includes the steps of selecting a weak soil, such as marl or dune sand, mixing the weak soil with 2% cement by weight and between 5% and 30% by weight of Electric Arc Furnace Dust (EAFD) to form a dry mixture, mixing the dry mixture with water to form a substantially homogenized mixture, and curing the homogenized mixture, wherein curing can include the step of sealing the homogenized mixture in an environment having a temperature between 19° C. and 25° C., inclusive, for seven days.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: November 22, 2016
    Inventors: Omar Saeed M. Baghabra Al-Amoudi, Abdullah Ahmed Khaled Al-Homidy, Mohammed Maslehuddin, Tawfik Abdo Saleh
  • Patent number: 9492945
    Abstract: Fresh concrete is treated with carbon dioxide prior to delivery to a product mold for forming concrete products. Carbon dioxide gas is directed through a manifold, which may be coupled to a feedbox or a hopper, upstream from the product mold. Treating the fresh concrete with the carbon dioxide gas while it is in a loose state prior to placement in the product mold may generally promote uniform and enhanced carbon dioxide uptake.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: November 15, 2016
    Assignee: CarbonCure Technologies Inc.
    Inventors: Robert Niven, George Sean Monkman, Dean Paul Forgeron
  • Patent number: 9481604
    Abstract: The present invention contemplates a cementitious additive that contains electric-arc furnace dust (EAFD) and a precursor as a replacement for up to about 30% of the cement in concrete. The additive includes about 50% by weight EAFD and about 50 wgt. % of precursor. The precursor includes about 55 wgt. % silica, about 10 to 20 wgt. % lime, about 2 to 5 wgt. % soda, about 5 to 15 wgt. % potash, about 2 to 6 wgt. % alumina and about 1 to 3 wgt. % magnesia. The method also contemplates the step of homogenizing the electric-arc furnace dust (EAFD) and precursor to produce engineered dust (ED) and then replacing up to 30% of the cement with a mixture referred to as ED i.e. homogenized EAFD and precursor.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: November 1, 2016
    Assignee: King Saud University
    Inventors: Galal Fares, Rajeh Z. Al-Zaid, Abdulrahman M. Alhozaimy, Abdulaziz I. Al-Negheimish, Mohammad I. Khan
  • Patent number: 9475731
    Abstract: A dry papercrete mix is formed by preparing a wet pulp of fiber material such as newsprint and sharp sand by mixing sand, fiber material and water in a batch or continuous mixer, drying the pulp to a moisture content below that which will cause a reaction with Portland cement and adding additional sand and/or pumice and Portland cement. The resulting dry mix can then be handled, stored and used in the manner which is conventional for concrete. The dry papercrete mix can also be applied by pouring the dry papercrete mix into a form in a dry state and injecting water into the dry mix until the mix is sufficiently wetted without mixing in the manner common for concrete. Structural modules and a technique for joining them into a structure are particularly appropriate to the use of dry application papercrete.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: October 25, 2016
    Inventor: James Robert Brock
  • Patent number: 9458059
    Abstract: Disclosed is a process for the calcining and manufacturing of synthetic pozzolan with desirable color properties. Feed material is dried, crushed, and preheated in a drier crusher. The dry, crushed material is collected and fed to a calciner where it is heated to become a synthetic pozzolan. The synthetic pozzolan is then fed to a cooler where it is maintained for a least a portion of the cooling step in a reducing atmosphere.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: October 4, 2016
    Assignee: FLSmidth A/S
    Inventors: James Ballan, Ove Lars Jepsen, Peter Paone, John S. Salmento
  • Patent number: 9435122
    Abstract: A steel fiber for reinforcing concrete or mortar has a middle portion and an anchorage end at one or both ends of the middle portion. The middle portion has a main axis. The anchorage end comprises at least a first straight section, a first bent section, a second straight section, a second bent section and a third straight section. The first straight section and the third straight section are bending away from the main axis of the middle portion in the same direction. The second straight section is substantially parallel with the main axis of said middle portion.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: September 6, 2016
    Assignee: NV BEKAERT SA
    Inventors: Ann Lambrechts, Martin Van Haeke
  • Patent number: 9409819
    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: Grant
    Filed: December 11, 2014
    Date of Patent: August 9, 2016
    Inventors: Akira Taomoto, Norihisa Mino, Shoichi Kiyama, Akira Murakami, Toshihiko Kawachi
  • Patent number: 9371252
    Abstract: In the method according to the invention for producing cement clinker, raw cement meal is preheated in a preheater, the preheated raw cement meal is precalcined in a calciner and the precalcined raw cement meal is burnt in a kiln, fuel and combustion air having an oxygen content of at least 75 mol % being used in the calciner, and the raw cement meal being precalcined in a fluidized bed in the calciner. The exhaust gases occurring in the kiln are delivered to the preheater, bypassing the calciner, and the exhaust gases of the calciner are delivered to a CO2 preparation device.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: June 21, 2016
    Assignee: ThyssenKrupp Industrial Solutions AG
    Inventor: Detlev Kupper