Soil, Diatomaceous Earth, Clay, Slate Or Shale Containing, Or Material For Treating Soil Or Earth (e.g., Soil Stabilization, Etc.) Patents (Class 106/811)
  • Patent number: 6908508
    Abstract: The present invention relates to subterranean operations, and more particularly, to settable fluids comprising vitrified shale and hydrated lime and methods of using such settable fluids in subterranean applications. In an exemplary embodiment, the settable fluids of the present invention may be used as a displacement fluid. In another exemplary embodiment, the settable fluids of the present invention may be used as a drilling fluid.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: June 21, 2005
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Lance E. Brothers
  • Patent number: 6893496
    Abstract: Blended cement compositions for mixture with aggregate and water to prepare cementitious products. Such blended cement compositions contain cement, calcined diatomaceous earth, calcined kaolin, fiberous material and reactive vinyl acetate co-polymers, with or without talc and/or bentonite or their functional equivalents. Admixtures for blending into cement to create such blended cements or their read-mix equivalents contain calcined kaolin, calcined diatomaceous earth, fiberous material and reactive vinyl acetate co-polymers, with or without talc and/or bentonite or their functional equivalents.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: May 17, 2005
    Assignee: Universal White Cement Company, Inc.
    Inventor: Vaughn R. Liljenquist
  • Publication number: 20040261666
    Abstract: A low moisture composition for producing concrete articles exhibiting increased density and strength and requiring a short consolidation time is obtained by adding a powder admixture of naphthalene formaldehyde condensates to a cement composition.
    Type: Application
    Filed: July 23, 2004
    Publication date: December 30, 2004
    Inventors: Semyon A. Shimanovich, Christian Meyer
  • Publication number: 20040244650
    Abstract: The present invention relates to subterranean operations, and more particularly, to settable fluids comprising vitrified shale and hydrated lime and methods of using such settable fluids in subterranean applications. In an exemplary embodiment, the settable fluids of the present invention may be used as a displacement fluid. In another exemplary embodiment, the settable fluids of the present invention may be used as a drilling fluid.
    Type: Application
    Filed: January 16, 2004
    Publication date: December 9, 2004
    Inventor: Lance E. Brothers
  • Patent number: 6824606
    Abstract: A water retaining additive for conglomerate building materials, free of cellulose-like derivatives, that comprises at least a rheological grade clay, preferably sepiolite, and a modified natural gum such as guar gum, as well as conglomerate compositions that contain the additive, as well as the use of the additive for different constructions materials comprised of gypsum and special mortars are described.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: November 30, 2004
    Assignee: Tolsa, S.A.
    Inventors: Antonio Alvarez Berenguer, Francisco Javier Limpo Orozco, Bernardo Enrique Del Valle Álvarez, Manuel Hidalgo Martín
  • Patent number: 6811603
    Abstract: The present invention provides methods, lightweight well cement compositions and additives for the well cement compositions. The methods of the invention for sealing pipe in a well bore penetrating a zone or formation which readily fractures at low hydrostatic pressure is basically comprised of the steps of providing a lightweight cement composition comprised of a hydraulic cement, water and an additive comprising an aqueous suspension of microspheres containing a water swellable clay suspending agent, placing the cement composition in the annulus between the pipe and the well bore and allowing the cement composition to set.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: November 2, 2004
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Lance E. Brothers, Krista L. Keener, James A. Braden, Jan Pieter Vijn, Bach Dao
  • Publication number: 20040187740
    Abstract: Cementitious compositions comprising pozzolonic materials, alkaline earth metals, and a catalysts to catalyze the reaction between the pozzolonic materials and the alkaline earth metals.
    Type: Application
    Filed: November 18, 2003
    Publication date: September 30, 2004
    Applicant: Research Incubator, Ltd.
    Inventor: Scott F. Timmons
  • Patent number: 6797051
    Abstract: A more controllable fibrous acoustic ceiling patch or textured material in the form of a sprayable composition includes a base, a filler, an adhesive binder, an anti-foaming agent, a suspension agent, and fibrous materials. The more controllable acoustic ceiling patch is storable and dispensable from a pressurized dispenser having a delivery nozzle. An aerosol system with a spray nozzle is included on the container for selective discharge of the textured material onto a prepared patch area, which may be on a drywall or support panel so as to match and blend with the surrounding acoustic ceiling surface area in order to provide a continuous and unbroken coextensive surface texture of mechanically and visually matched material.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: September 28, 2004
    Assignee: Spraytex, Inc.
    Inventor: John R. Woods
  • Patent number: 6689208
    Abstract: The present invention provides lightweight cement compositions, and methods for cementing in a subterranean formation using such cement compositions. The cement compositions comprise hydrated lime, vitrified shale, and sufficient water to form a slurry. Optionally, other ingredients may be included in the compositions.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: February 10, 2004
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Lance E. Brothers
  • Publication number: 20040007163
    Abstract: The present invention provides methods, lightweight well cement compositions and additives for the well cement compositions. The methods of the invention for sealing pipe in a well bore penetrating a zone or formation which readily fractures at low hydrostatic pressure is basically comprised of the steps of providing a lightweight cement composition comprised of a hydraulic cement, water and an additive comprising an aqueous suspension of microspheres containing a water swellable clay suspending agent, placing the cement composition in the annulus between the pipe and the well bore and allowing the cement composition to set.
    Type: Application
    Filed: June 25, 2003
    Publication date: January 15, 2004
    Inventors: Lance E. Brothers, Krista L. Keener, James A. Braden, Jan Pieter Vijn, Bach Dao
  • Patent number: 6676742
    Abstract: A physical and chemical mixture of aggregative material, chemical products, mineral fillers and/or special pigments in dispersion, with metallic effect, designed to be added to aqueous-phase paint products having a monochromatic-flocculate or multichromatic-flocculate base (known among decorative paint products by the trade name of aqueous-phase Multicolor, Antiche Terre Fiorentine and/or the like), or aqueous-phase paint products without flocculate components (known among decorative paint products by the trade name of Arteacqua glazings and/or the like) in order to obtain a newly devised single-color and multicolor mural-coating decorative paint product both, with and without metallized effect, which can be applied using a spatula, paintbrush, glove and/or roller or the like, and a process for the production thereof.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: January 13, 2004
    Assignee: Candis S.R.L.
    Inventor: Alberto Gilli
  • Publication number: 20040003759
    Abstract: The present invention provides methods, lightweight well cement compositions and additives for the well cement compositions. The methods of the invention for sealing pipe in a well bore penetrating a zone or formation which readily fractures at low hydrostatic pressure is basically comprised of the steps of providing a lightweight cement composition comprised of a hydraulic cement, water and an additive comprising an aqueous suspension of microspheres containing a water swellable clay suspending agent, placing the cement composition in the annulus between the pipe and the well bore and allowing the cement composition to set.
    Type: Application
    Filed: June 25, 2003
    Publication date: January 8, 2004
    Inventors: Lance E. Brothers, Krista L. Keener, James A. Braden, Jan Pieter Vijn, Bach Dao
  • Publication number: 20030177951
    Abstract: A physical and chemical mixture of aggregative material, chemical products, mineral fillers and/or special pigments in dispersion, with metallic effect, designed to be added to aqueous-phase paint products having a monochromatic-flocculate or multichromatic-flocculate base (known among decorative paint products by the trade name of aqueous-phase Multicolor, Antiche Terre Fiorentine and/or the like), or aqueous-phase paint products without flocculate components (known among decorative paint products by the trade name of Arteacqua glazings and/or the like) in order to obtain a newly devised single-colour and multicolour mural-coating decorative paint product both, with and without metallized effect, which can be applied using a spatula, paintbrush, glove and/or roller or the like, and a process for the production thereof.
    Type: Application
    Filed: May 30, 2002
    Publication date: September 25, 2003
    Applicant: CANDIS S.r.l.
    Inventor: Alberto Gilli
  • Publication number: 20030150361
    Abstract: The present invention provides a lightweight clay which can be easily molded into a given shape, exhibits proper lightweight characteristics and storing characteristics, and can be manufactured at a low cost, and a manufacturing method thereof. In such a lightweight clay and the manufacturing method thereof, an average particle size of the organic hollow micro spheres is set to a value which falls within a range of 15 to 150 &mgr;m and, an addition quantity of the organic hollow micro spheres is set to a value which falls within a range of 0.1 to 6 weight % with respect to a total quantity of the lightweight clay, and whiteness degree(WL) measured in accordance with JIS L 0803 is set to not less than 50.
    Type: Application
    Filed: February 12, 2003
    Publication date: August 14, 2003
    Inventor: Toshiyuki Yamamuro
  • Patent number: 6572696
    Abstract: New additive for projectable agglomerating materials in the building industry, said additive comprising at least one clay of rheologic grade, preferably sepiolite, a water reducer/fluidifier and an aeration agent, as well as the utilization of said additive as component of projectable agglomerating materials such as mortars and concretes.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: June 3, 2003
    Assignee: Tolsa, S.A.
    Inventors: Antonio Alvarez Berenguer, Francisco Javier Limpo Orozco, Bernardo Enrique Del Valle Álvarez, Manuel Hidalgo Martín
  • Patent number: 6458198
    Abstract: The slurries were prepared using a reference slurry having a density of 16.4 lb/gal(US) (1.965 g/cm3) of cement, with porosity of 55.18%. The cement was a class G Dickerhoff North cement. The slurries were prepared in the presence of on agent at a concentration of 0.4% by weight of cemenit (BWOC) and of an anti-foaming agent at a concentration of 0.03 gallons per (94 pound) sack of cement (gps); (a concentration of 0.1 gps corresponds to 0.90 liters of anti-foaming agent per 100 kg of cement). The suspension agent was added to the mixing water, and mixing took place at 4000 revolutions.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: October 1, 2002
    Assignee: Schlumberger Technology Corporation
    Inventors: Jean-François Baret, Sylvaine Leroy-Delage, Bernard Dargaud
  • Patent number: 6264740
    Abstract: A method of producing a new type of cement, hereafter called Conch-krete. Conch-krete is created by adding sodium carbonate (also known as soda ash, natron, etc.) and one or more minerals from the calcium carbonate group (including aragonite, limestone, calcite, marble, dolomite, etc.) and the addition of water to the mix that will harden into a cement-like material. The combination of sodium carbonate and calcium carbonate can be either layered or in a mixed state. An exothermic reaction starts after the addition of water. The composition of Conch-krete can vary between 20% sodium carbonate and 80% calcium carbonate to 80% sodium carbonate and 20% calcium carbonate. Conch-Icrete can be used in a variety of applications not inclusive of forming bricks, interior architecture, table or counter tops, ornaments, repairing damaged cement products, casting and other applications not mentioned above.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: July 24, 2001
    Inventor: William J. McNulty, Jr.
  • Patent number: 6251179
    Abstract: A thermally conductive cement-sand grout for use with a geothermal heat pump system. The cement sand grout contains cement, silica sand, a superplasticizer, water and optionally bentonite. The present invention also includes a method of filling boreholes used for geothermal heat pump systems with the thermally conductive cement-sand grout. The cement-sand grout has improved thermal conductivity over neat cement and bentonite grouts, which allows shallower bore holes to be used to provide an equivalent heat transfer capacity. In addition, the cement-sand grouts of the present invention also provide improved bond strengths and decreased permeabilities. The cement-sand grouts can also contain blast furnace slag, fly ash, a thermoplastic air entraining agent, latex, a shrinkage reducing admixture, calcium oxide and combinations thereof.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: June 26, 2001
    Assignee: The United States of America as represented by the Department of Energy
    Inventor: Marita Allan
  • Patent number: 6200380
    Abstract: A method of continuously producing a cementitious composition such as joint compound includes pre-mixing at least two dry ingredients and pre-mixing at least two liquid ingredients. The ingredients are provided in a continuous mixing apparatus and at least substantially continuously blended.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: March 13, 2001
    Assignee: National Gypsum Company
    Inventors: Ronald S. Finkelstein, Jashbhai M. Patel
  • Patent number: 6083318
    Abstract: A lightweight, cementitious composition and method which includes a noncementitious filler, Portland cement, bentonite, diataomaceous earth and lime. The noncementitious filler may be sawdust, rubber chips, flyash or combinations of two or more of these ingredients. Once mixed with water and air, the composition can be molded to form a variety of structures, including electrically nonconductive posts, and can be used to absorb and contain liquid contaminants in a vessel.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: July 4, 2000
    Inventors: Joseph M. Zawada, Sandra K. Zawada
  • Patent number: 6080234
    Abstract: An ultra-high performance composite concrete, with low cement and fiber content and having good mechanical properties as well as good impacts, shocks and projectile protection properties, includes hydraulic binder, aggregates, an admixture of metal fibers. Particularly, the composite concrete includes 70% to 85% of particles (A) having a particle size distribution which ranges from 0.01 to 3 mm up to particle size distribution which ranges from 0.01 to 0.50 mm; 2% to 10% of particles (B) having particle size of between 0.01 and 1 .mu.m; 3% to 20% of hydraulic binder; 0.1 to 3% of a dispersant or plasticizer; 0.05% to 8.5% of fibers; and, mixing water, wherein the percentages being weight percentages based on the sum of the weights of constituents a) to d).
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: June 27, 2000
    Assignee: Lafarge Materiaux de Specialites
    Inventors: Bernard Clavaud, Gerard Cochet, Claudie Gnagne, Jean-Pierre Targe
  • Patent number: 6033468
    Abstract: A composition comprises anhydrous alumino-silicate, diatomaceous earth, and/or other natural pozzolans, white clinker, and white gypsum interground together and in a ratio by weight of 5-20% anhydrous alumino-silicate, diatomaceous earth, and/or other natural pozzolans, 3-7% gypsum, and 73-92% white clinker.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: March 7, 2000
    Inventors: Timothy S. Folks, Patrick M. Hill, Frank T. Sheets, III, Richard F. Ball, Joseph R. Sisneros, Jesus Uribe, Curtis W. Forrester
  • Patent number: 6007620
    Abstract: A process of manufacturing blended white cement comprises the following steps: (a) providing anhydrous alumino-silicate, diatomaceous earth, and/or other natural pozzolans; (b) providing white clinker; (c) providing gypsum; and (d) combining and grinding the anhydrous alumino-silicate; the white clinker, and the gypsum together to form the blended white cement.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: December 28, 1999
    Inventors: Timothy S. Folks, Patrick M. Hill, Frank T. Sheets, III, Richard F. Ball, Joseph R. Sisneros
  • Patent number: 5997629
    Abstract: A method of solidifying a waste or soil composition containing at least one contaminant species which comprises adding to said composition binder and optionally water, mixing the binder into the waste or soil material to form a mixture thereof and simultaneously during formation of the mixture and/or subsequently after formation of the mixture, treating the mixture with sufficient carbon dioxide to achieve setting and subsequent hardening of said mixture so as to produce a solidified waste or soil composition.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: December 7, 1999
    Assignee: Imperial College of Science, Technology and Medicine
    Inventor: Colin Hills
  • Patent number: 5993537
    Abstract: In accordance with the present invention, there are provided novel fiber reinforced building material formulations, comprised of an inorganic binding agent and synthetic fibers. The fibrous material employed in invention formulations is capable of undergoing progressive fibrillation upon agitation. As a result, fibers of lower initial aspect ratios, and higher addition rates than previously possible are disclosed, herein. Formulations containing Portland cement-based compositions and fibrillating synthetic fibers are also contemplated. In addition, there are provided methods of producing fiber reinforced building materials, including Portland cement-based compositions, and articles produced therefrom.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: November 30, 1999
    Assignee: Dalhousie University
    Inventors: Jean-Francois Trottier, Michael Mahoney
  • Patent number: 5989336
    Abstract: A cement slurry composition suitable for well bore cementation is provided containing as an essential component a synthetic hectorite clay in amount sufficient to reduce free water formation and solids segregation.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: November 23, 1999
    Assignee: Atlantic Richfield Company
    Inventors: Robert B. Carpenter, J. Benjamin Bloys, David L. Johnson
  • Patent number: 5976240
    Abstract: An additive for reducing the calcium aluminate cement content in a refractory mix containing calcium aluminate cement. The additive is comprised of about 80% by weight amorphous, powdered metakaolin, the metakaolin having a mean particle size of less than about 3.0 microns, and about 20% by weight microsilica, the microsilica having a mean particle size of less than 45 microns.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: November 2, 1999
    Assignee: North American Refractories Co.
    Inventor: Thomas F. Vezza
  • Patent number: 5976241
    Abstract: The activated kaolin powder compound is prepared from naturally-existing kaolin (hereinafter "natural kaolin"). The activated kaolin powder compound is prepared by heating natural kaolin to 480.degree. C. within at most one hour, calcinating the heated kaolin at high temperature by heating to 980.degree. C. over at least one hour, quenching the calcinated kaolin with water or air, and pulverizing the quenched kaolin to give particle sizes of 2 .mu.m or less. The activated kaolin powder compound is employed in an amount of about 5 to 15% by weight of cement for preparing mortar or cement. The cement composition containing the activated kaolin powder compound can provide a mortar or concrete having superior properties in compressive strength, flexural strength and water permeability.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: November 2, 1999
    Assignees: Moon Han Kim, Jeong Hwan Kwak
    Inventors: Moon Han Kim, Hey Zoo Hwang, Jung Ha Hwang, Hee Sung Cha, Kwang Choon Kim, Jong Kuk Lee
  • Patent number: 5951751
    Abstract: A flowable fill composition is shown which is prepared by mixing together a lime component, a pozzolanic component, aggregate material and water. The composition has a set compressive strength after 28 days of 2000 psi or less and is characterized by the substantial absence of cement or other self-setting adhesive components.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: September 14, 1999
    Assignee: Chemical Lime Company
    Inventors: Devon Williams, Michael Eliasen, Robert A. Derks
  • Patent number: 5935316
    Abstract: A light sand-gravel and its production methodology is provided. The light sand-gravel has a specific gravity within the range of 0.4.about.2.0. It has an expanded inner structure with porosity to approximate an evacuated space and a vitreous surface. The production methodology involves the preheating of sorted and dried rock materials, subsequent heating and heat soaking processes in a converter preset with four stages of temperature control. Stage 1 provides for preheating. Stages 2 and 3 provides heating and Stage 4 provides heat soaking to produce a light sand-gravel aggregate with a particular specific gravity.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: August 10, 1999
    Inventor: Chiou Chiow-Shing
  • Patent number: 5935307
    Abstract: Compositions and methods for the introduction of alloying compounds into a metal substrate using a laser energy source is disclosed. The compositions comprise a viscous fluid mixture of a powdered silicate mineral composite, a powdered metallic or semi-metallic compound and a water insoluble or slightly water soluble liquid component capable of supporting a dispersion of the powdered silicate mineral composite and the powdered metallic or semi-metallic compound therein. The composition may be sprayed in bulk onto large surface areas of a metal substrate in need of repair prior to laser irradiation.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: August 10, 1999
    Inventor: Katherine D. Parks
  • Patent number: 5869166
    Abstract: Using a combination of relatively coarse filler and latex binder, a very high solids coating (about 85% or higher) can be produced with a relatively low working viscosity. These very high solids coatings can be applied in thick single layers and oven cured without cracking. They maintain more than 80% of their original wet thickness. The resulting coating provides an extremely hard and durable surface, even on relatively soft mineral fiber board ceiling tiles or wall panels.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: February 9, 1999
    Assignee: Armstrong World Industries, Inc.
    Inventor: Kenneth G. Caldwell
  • Patent number: 5792251
    Abstract: A method of forming powdered metakaolin for use as an additive in cement based materials comprising the steps of calcining kaolin so as to reduce the hydroxyl content thereof to produce a meta-stable material have an identifiable amorphousness, and pulverizing the meta-stable material into a powder having a particle size of 50 microns or less.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: August 11, 1998
    Assignee: North American Refractories Co.
    Inventors: William D. Smiley, George Bartich, Mike Stromberg, Randy Lemley, Robert L. Antram, Keith T. Snider
  • Patent number: 5769938
    Abstract: To treat waste containing harmful netals such as lead, cadmium, mercury, chromium, copper, nickel, zinc, etc., the waste is mixed with a treating agent containing, as the essential constituent component, solid acid(s) and/or cement and additionally a caking inhibitor, kneaded with water where necessary, then solidified by curing. Harmful metals are thereby stabilized in the thus-solidified cakes and are not released therefrom.
    Type: Grant
    Filed: April 2, 1996
    Date of Patent: June 23, 1998
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Kenji Ueshima, Noboru Ikitsu, Takuji Nomura, Takashi Funahashi, Masakazu Uekita
  • Patent number: 5749963
    Abstract: The hardenable mortar composition consists of a bonding agent component including a hydraulic bonding agent, such as cement, gypsum or mortar, and a paste-forming agent consisting of a liquid solvent inert with respect to the hydraulic bonding agent, and an aqueous component kept separate from the bonding agent component until the two components are mixed to form a hardened mortar composition. The aqueous component includes water and a hydrophobic adsorbent or absorbent. The hydrophobic adsorbent or absorbent is included in the aqueous component to avoid the emergence of the paste-forming agent, which is at the very least unsightly, when the aqueous component is mixed with the bonding agent component. The hydrophobic adsorbent or absorbent binds the paste-forming agent which would otherwise escape during mixing and remains as an inert additive in the setting mortar composition, without reducing the hardness thereof.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: May 12, 1998
    Assignee: fischerwerke, Artur Fischer GmbH & Co. KG
    Inventors: Norbert Arnold, Willi Haug, Stefan Lind
  • Patent number: 5716448
    Abstract: Excavated earth from construction sites may be recycled as backfilling material or grout by incorporating it into a hydraulic composite. This is done firstly by blending excavated soil with a solidifying quantity of a hydraulic material and a fluidifying quantity of water and at least one first admixture selected from the group consisting of hydroxycarboxylic acids, phosphonic acid derivatives and saccharides and derivatives thereof, and blending the mixture thus created with a cement-dispersing agent at a time between the addition of the hydraulic material and the commencement of set of the hydraulic material. The hydraulic composites thus created have good fluidity, good final strength and low proneness to cracking.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: February 10, 1998
    Assignee: MBT Holding AG
    Inventors: Takao Furusawa, Kanji Higaki, Satoshi Okazawa
  • Patent number: 5711997
    Abstract: A semifluid mix for environmental reclamation, comprising peat, a hydraulic binder, resins, seeds, lime, and manure, the mix being particularly adapted to restore a covering of vegetation on surfaces that have suffered environmental degradation, such as ski pistes, road slopes, landslide and quarry faces. The present invention furthermore relates to a method for preparing the mix and to a method for applying the semifluid mix on the surfaces that have suffered environmental degradation.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: January 27, 1998
    Assignee: Limestone di Perani Piero Alberto Bruno
    Inventor: Piero Alberto Bruno Perani
  • Patent number: 5707443
    Abstract: A grouting material which is self-dispersing when brought into contact with a volume of water containing liquor or slurry and is settable to a solid mass after such dispersion, the material being in the form of self-dispersing granules or pellets and comprising a blend of component (A): a cementive constituent forming from 10 per cent to 95 per cent by weight of the composition; component (B): a dispersing constituent forming from 2 per cent to 75 per cent by weight of the composition; optional component (C): a swelling constituent which forms from 0 per cent to 50 per cent by weight of the composition; and component (D): a binder constituent which forms from 0.1 per cent to 10 per cent by weight of the composition; the percentages of components A, B, C and D adding to 100 per cent.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: January 13, 1998
    Assignee: British Nuclear Fuels
    Inventors: David John Brown, Stephen Geoffrey Higson
  • Patent number: 5693137
    Abstract: A cementitious mixture includes hydraulic cement, fly ash, and an effective amount of unfired nature finely divided material, such as a clay, containing at least about 35% alumina, to accelerate the early strength of a mix. A method of accelerating early strength in a cementitious mix comprises the adding of alumina in the form of an unfired raw material, such as clay, in an effective amount in such mix.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: December 2, 1997
    Assignee: JTM Industries, Inc.
    Inventor: Robert W. Styron
  • Patent number: 5658097
    Abstract: The present disclosure concerns a soil or ground quality stabilizer comprising a mixture formed by mixing a burned sewage sludge ash the main contents of which are CaO, SiO.sub.2 and Al.sub.2 O.sub.3 with a lime of calcium hydroxide to reduce hydraulicity and a fine Fe oxides mixture powder byproduced in steel production the main content of which is iron oxide. The soil or ground quality stabilizer is added into a pavement material containing crushed stones, natural soil, etc. to improve the strength and viscoelasticity of the natural soil and can give a desired CBR strength to the soil having an increased moisture content. The preferable adding ratio of the fine Fe oxides mixture powder into the mixture of the burned sewage sludge ash and the lime of calcium hydroxide is within the range of 15-35 weight %.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: August 19, 1997
    Assignee: Fe Lime Industry Corporation
    Inventors: Teruaki Komori, Tsukio II, Akira II, Kiyoshi II, Takayoshi Mizoguchi
  • Patent number: 5650004
    Abstract: There is disclosed a cement plaster composition wherein an additive having from about 10% to about 75% of a silicone treated powder and from about 90% to about 25% of a pozzalanic filler is combined with a type I Portland cement and a crushed aggregate to form a water repellent coating for plastering a swimming pool surface. The additive may also include rheology modifiers, water reducing agents, or set time modifiers.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: July 22, 1997
    Inventor: Michael D. Yon
  • Patent number: 5641815
    Abstract: In order to be able to produce formed elements or building elements with a significantly increased strength with a building material or structural material, it is suggested to provide the material with a largely uniform fine pore structure or a microcellular structure. These fine pores preferably have a diameter in the range of approx. 0.01.mu. to approx. 5.mu. and are self-contained. The material contains a reactive binding agent or a reactive matrix material, which can be a cement/water mixture or also a synthetic resin, for example polyurethane, epoxy resin, etc.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: June 24, 1997
    Inventor: Hans Beat Fehlmann
  • Patent number: 5637144
    Abstract: An asbestos replacement is disclosed which includes water retention agents and finely divided mineral clays with high moisture retention capabilities. Combining the aforementioned ingredients in the correct proportions yields properties as those of asbestos when used in cementitious mortar compositions.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 10, 1997
    Inventors: Burton K. Whatcott, Lynn G. Bigelow
  • Patent number: 5611853
    Abstract: A composition of matter comprising naturally-occurring humic allophane soil or Ando soil as an essential ingredient admixed with a binder material, said composition is useful in preparation of solid media effective as deodorant, absorbent, adsorbent and the like for treating fluids, in particular contaminated water and malodor air.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: March 18, 1997
    Assignees: Haruo Morimoto, Katusi Maeno, Takahiro Yamada
    Inventor: Haruo Morimoto
  • Patent number: 5588990
    Abstract: Blended cement compositions for mixture with aggregate and water to prepare cementitious products. Such blended cement compositions contain cement, calcined diatomaceous earth, calcined kaolin, and about 0.5% to about 4% (w/w) of potassium, with or without talc and/or bentonite or their functional equivalents. Admixtures for blending into cement to create such blended cements or their read-mix equivalents contain calcined kaolin, calcined diatomaceous earth, and potassium, with or without talc and/or bentonite or their functional equivalents.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: December 31, 1996
    Assignee: Universal Cement & Concrete Products, Inc.
    Inventor: Jonathan E. Dongell
  • Patent number: 5542977
    Abstract: A slurry composition for stabilizing the upper layers of the earth comprising a lime and a fly ash having a calcium oxide content of less than 18% and water.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: August 6, 1996
    Inventor: Donald R. Hanst
  • Patent number: 5531824
    Abstract: High-strength, high-hardness concrete, mortar, or grout is prepared by blending portland cement, water, and aggregate with a source of reactive silica, pouring the concrete mixture into a form, allowing the concrete to cure until it reaches its conventional 28-day strength, and immersing the cured concrete in a solution of alkali metal hydroxide and aluminum nitrate at 60.degree.-110.degree. C. for 3-14 days. Alternatively, the cured concrete may be sprayed with the solution and maintained at 60.degree.-110.degree. C. for 3-14 days. A dense, hard surface layer of alkali metal aluminum silicate is formed, the compressive strength and surface hardness of the concrete is increased, and the water infiltration rate into the concrete is decreased.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: July 2, 1996
    Inventors: J. Pate Burkes, Philip G. Malone, Lillian D. Wakeley
  • Patent number: 5472051
    Abstract: Improved set retarded cement compositions for cementing subterranean zones in wells at low temperatures having excellent short term compressive strength development and methods of using such compositions are provided. The compositions are basically comprised of a hydraulic cement, water and a copolymer containing 2-acrylamido-2-methylpropane sulfonic acid in an amount in the range of from about 65 to about 85 mole percent and acrylic acid in an amount in the range of from about 15 to about 35 mole percent having an average molecular weight below about 5000.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: December 5, 1995
    Assignee: Halliburton Company
    Inventor: Lance E. Brothers
  • Patent number: 5468292
    Abstract: A suspension-type grouting liquid for injection into a ground having excellent penetration properties, e.g. low viscosity and long gelation time, and having comparatively high strength after consolidation. The suspension-type grouting liquid for injection into a ground consists essentially of slag, or a combination of slag and cement, alkali metal aluminates, and water. The slag is a fine grain having specific surface area of 5000 cm.sup.2 /g or more, and the alkali metal aluminates have a mole ratio of ({Me.sub.2 O}/{Al.sub.2 O.sub.3 }) of 2.8 or more, in which Me means alkali metal, {Me.sub.2 } and {Al.sub.2 O.sub.3 } represent, respectively, molar concentration of Me.sub.2, and Al.sub.2 O.sub.3.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: November 21, 1995
    Assignee: Kyokado Engineering Co., Ltd.
    Inventors: Kenji Kayahara, Shunsuke Shimada
  • Patent number: 5464473
    Abstract: A backfill for an engineered barrier used to contain radioactive waste has a predetermined amount of clayic material and a predetermined amount of a reinforcement material with hydrophobic surface characteristics. The reinforcement material may include hydrophobic compounds selected from group consisting of organic polymers or inorganic materials on which a layer of hydrophobic compounds is formed. The hydrophobic reinforcement material results in the backfill maintaining a very low water permeability while providing high mechanical strength and other properties suitable for use in a repository of radioactive waste.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: November 7, 1995
    Assignee: Chao Ming Tsai
    Inventor: Shin J. Shiao