Organic Material Containing Patents (Class 106/719)
  • Patent number: 6616755
    Abstract: The invention concerns a self-levelling concrete and a method for making a structural part from said concrete. The concrete which comprises aggregate and solid particles with size grading not more than 12 mm, comprises a superplasticizer which is a compound containing a least an amino-(dialkylene phosphonic) group and at least a polyalkylated chain, or one of its salts. The method is implemented by advantageously pumping the concrete using one or several immersion tubes with their injecting end at a lower level than the framework.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: September 9, 2003
    Assignee: Lafarge Platres
    Inventors: Christophe Levy, Rémy Garcia
  • Publication number: 20030159625
    Abstract: A high temperature viscosifying and fluid loss controlling additive for use in well cements, well cement compositions including the additive and methods of using the compositions are provided. The well cement compositions of this invention are comprised of a hydraulic cement, water and a viscosifying and fluid loss controlling additive comprising a mixture of a polymer comprised of at least one monomer which is calcium tolerant, anionic and disperses basic cement slurries, at least one monomer which hydrolyzes in basic cement slurries to generate anionic carboxylate groups that bind with calcium and viscosify the slurries and at least one monomer which generates non-ionic pendant groups on the polymer upon hydrolyzing in basic cement slurries to prevent polymer precipitation and a homopolymer of a monomer which hydrolyzes in basic cement slurries to generate anionic carboxylate groups that bind with calcium, viscosify the slurries and prevent settling in the slurries.
    Type: Application
    Filed: February 8, 2002
    Publication date: August 28, 2003
    Inventors: B. Raghava Reddy, Wendell D. Riley
  • Patent number: 6592660
    Abstract: Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, a particulate cross-linked gel containing an internal breaker which after time causes the gel to break into a liquid and water present in an amount sufficient to form a slurry.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: July 15, 2003
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Philip D. Nguyen, Ronald J. Crook, Johnny A. Barton, David L. Brown
  • 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
  • Publication number: 20030070589
    Abstract: A soil stabilization composition is provided for enhancing compaction and reducing permeability of different types of soil. The composition includes an acrylic copolymer resin, an enzyme and portland cement. The proportions of resin enzyme and cement will vary in accordance with the type of soil being treated. Sandier soils typically require higher volumes of product than sandier soils, and may require different relative compositions of ingredients.
    Type: Application
    Filed: October 11, 2001
    Publication date: April 17, 2003
    Inventor: Gregory M. Boston
  • Patent number: 6475275
    Abstract: A cement composition contains 35-85% by weight of a cement, 3-15% by weight of a clay, 1-50% by weight of an aggregate and/or a fibrous material, and 0.2-5% by weight of a high efficiency retarder. A benefit of the present invention is that equipment used to apply cement compositions need not be cleaned every night when used on a construction site.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: November 5, 2002
    Assignee: Isolatek International
    Inventors: Edward Nebesnak, Robert Ostertog
  • Publication number: 20020108535
    Abstract: Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, a particulate cross-linked gel containing an internal breaker which after time causes the gel to break into a liquid and water present in an amount sufficient to form a slurry.
    Type: Application
    Filed: February 19, 2002
    Publication date: August 15, 2002
    Inventors: Philip D. Nguyen, Ronald J. Crook, Johnny A. Barton, David L. Brown
  • Patent number: 6387176
    Abstract: A new category of multi-purpose polymers is presented, the polymers being capable to serve as a cement dispersing agent and which at the same time are set-accelerating and do have shrinkage reducing- and anticorrosive properties to steel. The polymers are ester and amide group-modified acrylic polymers, obtainable by a polymer analogous esterification of a polyacrylic acid with 1) a monofunctional polyalkyleneglycol-monoalkylether, 2) a tertiary alkanolamine and optionally 3) by amidation with a amino-polyalkylenglycol alkylether. The multi-purpose polymers serve for cement dispersing admixture for concrete with set accelerating, shrinkage compensating and anticorrosive properties to steel.
    Type: Grant
    Filed: April 17, 2000
    Date of Patent: May 14, 2002
    Assignee: Sika AG, vorm. Kaspar Winkler & Co.
    Inventors: Jürg Widmer, Ueli Sulser, Theodor A. Bürge, Ulf Velten, Anna Krapf-Huber
  • Patent number: 6387504
    Abstract: Composites useful in building structures such as floor tiles, are prepared having a very strong bond between a highly filled polymeric surface layer and a cementitious backing. The composite comprises: a first layer of solid particles intimately mixed with a polymeric binder; a second layer of an organic and/or inorganic solid; and a transitional layer located between the first and second layers comprising both the polymeric binder and the organic and/or inorganic solids wherein the polymeric binder is contained in pockets within the organic and/or inorganic solid and at least some of the pockets of the polymeric binder extend from the first layer.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: May 14, 2002
    Assignee: Margrace Enterprises INC
    Inventor: John N. Mushovic
  • Patent number: 6364945
    Abstract: Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, an acid soluble particulate solid, a liquid hydrocarbon solvent soluble particulate solid, a particulate cross-linked gel containing an internal breaker which after time causes the gel to break into a liquid, water present in an amount sufficient to form a slurry, a gas present in an amount sufficient to form a foam and a mixture of foaming and foamed stabilizing surfactants.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: April 2, 2002
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Roger S. Cromwell, Baireddy R. Reddy, Bobby J. King, Philip D. Nguyen, David L. Brown
  • Patent number: 6284867
    Abstract: A substantially non-crosslinked polymer cementitious composition dispersant for the improvement of the fluidity of cementitious compositions comprising hydrophilic side chain substituted polyimide or polyamide backbone units, having at least some proportion of grafted oligomeric or polymeric hydrophilic side chains linking at least one of amides, esters, and thioesters, wherein the polymer cementitious composition is water soluble, and wherein crosslinking is such that in a statistical sampling there is greater than zero to less than 0.1 mole % of backbone units involved in crosslinking.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: September 4, 2001
    Assignee: MBT Holding AG
    Inventors: Thomas M. Vickers, Jr., Runhai Lu, Lynn E. Brower, Samy M. Shendy, Rainer Packe-Wirth, Hong Gao
  • Patent number: 6277190
    Abstract: Mortars and plasters containing additives which are alcohols having from 8 to 72 carbon atoms adsorbed on solid supports, and processes for the preparation of the additives.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: August 21, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Heinz-Guenther Schulte, Wolfgang Gress, Ralf Neumann, Sarantis Moustakas
  • Patent number: 6270567
    Abstract: A material for improving the surface appearance of cementitious mouldings comprises a polyalkylene oxide compound which is selected from polypropylene oxide adducts of either polyethylene glycol or polyethylene oxide-ethylene diamine adduct, polypropylene oxide chains being attached to all terminal groups. The material may be added to a cementitious composition as an admixture or applied to the surface of a moulding which has not yet hardened.
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: August 7, 2001
    Assignee: MBT Holding AG
    Inventors: Shigemi Matsuo, Yasumasa Udagawa, Minoru Yaguchi
  • 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: 6241815
    Abstract: A composition for use in construction materials, which may be substituted for high performance concrete, patching materials, joint compounds, and the like, such as backer boards or panels, which includes a settable calcium sulfate, preferably a hemihydrate, Portland cement, a finely divided pozzolanic material, lime, and an aggregate, optionally including other additives. The volume ratio of the aggregate to the combined calcium sulfate, Portland cement, pozzolanic material, and lime (a cementitious binder) is equal to or greater than 2/1. Panels made from this composition are useful, particularly when exposed to water since they have good dimensional stability.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: June 5, 2001
    Assignee: United States Gypsum Company
    Inventor: David Bonen
  • Patent number: 6145591
    Abstract: Aluminum silicate-containing cement slurries for cementing wellbores in deepwater and cold environments, or in wellbores susceptible to fluid intrusion. The aluminum silicate-containing slurries may also be used as high strength, low density cements for wellbore cementing applications under a variety of conditions. The cement slurries typically comprise a mixture of a reactive aluminum silicate and hydraulic cement, and may include one or more other additives. The cement slurries may optionally be foamed using a foaming agent and energizing phase.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: November 14, 2000
    Assignee: BJ Services Company
    Inventors: Virgilio G. Boncan, Dan T. Mueller, Murray J. Rogers, Windall S. Bray
  • Patent number: 6136950
    Abstract: The invention is directed to a polymer dispersant comprising a substituted polyimide or polyamide backbone, having at least some proportion of oligomeric or polymeric grafted side chains including one of amides, esters, and thioesters, having the general formula: wherein X is at least one of hydrogen, an alkali earth metal ion, an alkaline earth metal ion, ammonium ion, and amine; R is at least one of C.sub.1 to C.sub.6 alkyl(ene) ether and mixtures thereof and C.sub.1 to C.sub.6 alkyl(ene) imine and mixtures thereof; Q is at least one of oxygen, nitrogen, and sulfur; p is a number from 1 to about 300 resulting in at least one of a linear and branched side chain; R.sub.1 is at least one of hydrogen, C.sub.1 to C.sub.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: October 24, 2000
    Assignee: MBT Holding AG
    Inventors: Thomas M. Vickers, Jr., Runhai Lu, Lynn E. Brower, Samy M. Shendy, Rainer Packe-Wirth, Hong Gao
  • Patent number: 6093241
    Abstract: Certain wastewater streams coming out of boilers have temperatures higher than 180.degree. Fahrenheit. Organoclay granules where a quaternary amine acts as a binder will dissolve at that temperature. A cementitious binder is used to pelletice an organoclay made of sepiolite to overcome this problem.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: July 25, 2000
    Assignee: Biomin, Inc.
    Inventor: George R. Alther
  • 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: 5852077
    Abstract: A lightweight, cementitious composition and method which includes a noncementitious filler, Portland cement, bentonite, diatamaceous 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: April 22, 1996
    Date of Patent: December 22, 1998
    Assignee: Composite Industries of America, Inc.
    Inventors: Joseph M. Zawada, Sandra K. Zawada
  • Patent number: 5824148
    Abstract: The invention relates to an improved sound absorbing cementitious composition and method of making involving a preformed foam solution made from a surfactant, such as an ammonium salt of a sulfated linear alcohol ethoxylate surfactant, preblended with water at a dilution ratio in a range of water to surfactant of from about 40:1 to 10:1. Thereafter, the preformed foam solution is combined with components including cement(s), aggregate(s), water and optional additives. The composition provides for an open cellular surface capable of absorbing sound.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: October 20, 1998
    Inventor: Charles E. Cornwell
  • Patent number: 5811527
    Abstract: A lignin composition having a content of aluminum or iron or both at 0.05 to 5 wt. % (based on the solids of the lignin solution) and a content of extracts with chlorotrifluoroethylene dimer at 0.01 to 0.4 wt. % (based on solids in lignin solution). The lignin compositions possess high surface tension and are suitable as dispersing agents for cement.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: September 22, 1998
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Hideaki Ishitoku, Toshihiro Sugiwaki, Masanobu Kawamura, Tomoyuki Nakamoto
  • Patent number: 5769939
    Abstract: The present invention relates to a cement-based injection grout containing microcement and water for consolidation and/or waterproofing fine granular soils, finally fissured soils and cracks in rocks or concrete structures. In addition to microcement and water the grout contains amorphous silica particles in an amount of 5-70% based on the weight of cement and 0-10% water-reducing agents based on the weight of the cement, said grout having a weight ratio between water and cement+amorphous silica between 2 and 8.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: June 23, 1998
    Assignee: Elkem ASA
    Inventors: Eldar O. Dings.o slashed.yr, Per Fidjest.o slashed.l, Oddny J.o slashed.rgensen
  • Patent number: 5753019
    Abstract: Mirror resin backings containing antioxidant pigments which are cyanamide derivatives of metals, are protective backing coatings for glass substrates and mirrors. The resin backings are melamine based resin coatings which provide anti-corrosion protection for the metal layers with metal cyanamide antioxidant pigments.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: May 19, 1998
    Assignee: Sureguard, Inc.
    Inventors: Mathew Stephen, Ole Gerhard Torgussen
  • 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: 5735948
    Abstract: A thermal process co-recycles tires with oils to produce gases, liquids and solids. The latter consisting of glass and steel fibers and a carbonous residue which are separately segregated and collected. By using selected additives gas formation and hydrogen sulfide contents are reduced, light product oil yields and quality are maximized and the level of chlorinated substances in the oils are reduced to trace amounts. The carbonous residue makes an excellent modifier for improving performance properties of bituminous binders and bituminous mixtures and for providing added benefits to properties of Portland concrete.
    Type: Grant
    Filed: July 17, 1995
    Date of Patent: April 7, 1998
    Assignees: Univ. of Wyoming, Amoco Corp.
    Inventors: Chang Yul Cha, Henry Plancher, Lawrence S. Kraus
  • Patent number: 5725652
    Abstract: An improved lightweight cementitious product made up of an aqueous cementious mixture using cement and expanded shale, clay and slate mix, that can incorporate fly ash, lime, and the weight saving component, which is micronized polystyrene particles having particle sizes in the range of 50 to 2000 microns, and characterized by having water contents in the range of from about 0.5% to 50% v/v. The ultra low water compositions can be extruded and can be molded under high pressure.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: March 10, 1998
    Inventor: David M. Shulman
  • 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: 5714085
    Abstract: Noxious wastes are detoxicated by admixing a detoxicating agent to noxious wastes containing heavy metals, PCB, or the like and eliminating noxious materials in the wastes, in which the detoxicating agent comprises sodium, potassium, calcium, lithium, barium, magnesium, strontium, cobalt or nickel, copper and zinc contained in an ionic state to a diluted aqueous solution comprising tannin and pyrolignous acid as the main ingredient. Further, the detoxicating agent is admixed together with cement to the noxious wastes containing heavy metals, PCB or the like, thereby eliminating noxious substances in the wastes and solidifying them.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: February 3, 1998
    Inventors: Toyohisa Eto, Masao Sugihara
  • 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: 5702521
    Abstract: Resinous compositions comprising lignin and polymerized rosin. Use of salts of the resinous compositions as concrete air-entraining agents and asphalt emulsifiers.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: December 30, 1997
    Assignee: Hercules Incorporated
    Inventor: Richard Robert Suchanec
  • 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: 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: 5547506
    Abstract: In the method of the invention, a storable hydraulically-active cementitious slurry is made and used to cement within subterranean foundations for oil and gas wells. The slurry is made from hydraulically-active, cementitious material suitable for oil field purposes and can be stored until needed. During storage, the slurry remains liquid. The slurry is activated when needed for cementing. After pumping the activated slurry into the wellbore, the set cement has properties acceptable for well cementing.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: August 20, 1996
    Assignee: BJ Services Company
    Inventors: Philip Rae, Neil Johnston
  • Patent number: 5536310
    Abstract: A cementitious composition comprising(A) 10-30 parts cementitious material;(B) 50-80 parts fly ash weight; and(C) 1.5-8 parts hydroxycarboxylic acid and/or salt thereof.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: July 16, 1996
    Assignee: Sandoz Ltd.
    Inventors: John W. Brook, David F. Factor, Frederick D. Kinney, Celeste L. McCallen, Andrea M. Young
  • Patent number: 5512096
    Abstract: A grouting composition for sealing boreholes or other cavities comprising 90.0-99.99% water swellable clay and 0.01-10.0% gelling agent. The grouting composition is mixed with fresh water to provide an easily placed, low cost, low permeability sealing composition. A preferred grouting composition contains 98-99% sodium bentonite and 1-2% cement. In use 50 pounds of the preferred grouting composition is mixed with 27-38 gallons of fresh water to produce a grouting composition containing 13.7-18.2% solids and having a fluid density equal to or greater than 9.0 lbs/gallon with a Marsh funnel viscosity equal to or greater than 50 seconds.
    Type: Grant
    Filed: July 14, 1995
    Date of Patent: April 30, 1996
    Assignee: Wyo-Ben, Inc.
    Inventor: Stewart W. Krause
  • Patent number: 5503672
    Abstract: The invention relates to the cementing of high temperature wells. The retarder consists of a methylene phosphonic acid derivative and of a boric acid or a borate at least as acid as borax in an aqueous solution, in particular, Na pentaborate, in a preferred ratio of 0.08 to 0.92 parts by weight. A long setting time and a very swift compressive strength development are obtained at the same time.
    Type: Grant
    Filed: March 8, 1994
    Date of Patent: April 2, 1996
    Assignee: Dowell, a division of Schlumberger Technology Corporation
    Inventors: Veronique Barlet-Gouedard, Hugo Hendriks, Pierre Maroy
  • Patent number: 5494514
    Abstract: A weather resistant soil cement with an open pore structure for resisting freeze-thaw damage is formed of cement, fly ash, Free aggregates, water, and an aqueous foamed surfactant, and other application specific additives. The material is uniquely suited for using indigenous soils, mill tailings, or granular waste products as the aggregate component of the mixture, although commercially produced aggregates may be used depending on economics and availability. Due to its low density and flowable nature, it can be pumped or placed by gravity and without compaction. The resulting product is a low density material with construction and mining applications, that is suited for use as a fill or mad base. Specific product formulations are easily designed to permit removal at local sites with conventional excavating equipment.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: February 27, 1996
    Assignee: Goodson & Associates, Inc.
    Inventors: Russell L. Goodson, Gary J. Colaizzi, Brian Masloff, Joseph J. Feiler
  • Patent number: 5492565
    Abstract: A composition useful in preparing a cement composition for setting and hardening of soils, comprising:(1) Slaked Lime;(2) Magnesium Chloride;(3) Montmorillonite;(4) Zirconium; and(5) Sodium Lignin-Sulfonate.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: February 20, 1996
    Inventor: Jiro Fujimasu
  • Patent number: 5484019
    Abstract: A method is presented for cementing conductor pipes in well bores in water depths greater than 1000 feet. The method is accomplished by formulating the cement slurry from Portland cement, a foaming surfactant, a quantity of fine particle size cementitious material and nitrogen or other gas to foam the slurry to yield a density of from about 9.0 to about 14 lbs/gal. The slurry is introduced down the conductor pipe and permitted to return up the annulus of the well bore to the seafloor. The slurry develops a static gel strength in excess of about 500 lbf/100 ft.sup.2 within less than about 30 minutes after placement.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: January 16, 1996
    Assignee: Halliburton Company
    Inventor: James E. Griffith
  • Patent number: 5482550
    Abstract: The present application is directed to a structural building unit formed from a set solid mixture consisting essentially of about 30% to about 75% by weight portland cement, about 1% to about 25% by weight percent ground expanded cellular polystyrene, about 1% to about 35% by weight ground cellulosic fiber, about 2% to about 15% by weight fly ash, about 1% to about 10% by weight silica fume, about 1% to about 15% by weight bentonite, about 25% to about 50% by weight water, about 0% to about 3% by weight air entrainer, about 0% to about 10% by weight paraffin wax emulsion and about 0% to about 15% by weight rubber emulsion.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: January 9, 1996
    Inventor: Mark C. Strait
  • Patent number: 5389702
    Abstract: A soil hardening method is for stabilizing soil through the process of drying and grinding the soil, and applying a first agent and a second agent to the soil until the agents are uniformly infiltrated between soil particles to improve hardening, water proofing and stabilization of the soil. The soil mortar can be applied for all types of the soil including silt, clay, and sand, and soil with high moisture content. The soil mortar is economical due to its short working times, and in addition it has uniform curing and is waterproof.
    Type: Grant
    Filed: February 27, 1992
    Date of Patent: February 14, 1995
    Inventor: Chui-Whay Koo
  • Patent number: 5378279
    Abstract: A cement enhanced to obtain a self-smoothing, self-levelling, non-shrinking mortar or concrete, consisting of an artificial cement mixed with additives, including at least a combination of a plasticizing agent included in a proportion of between 0.5 and 4% of the weight of the artificial cement and an expanding agent included in a proportion of between 0.000001 and 0.00099% of the weight of the artificial cement, and mortar or concrete obtained with the enhanced binder, mixed with a filler consisting of aggregates with a selected particle size.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: January 3, 1995
    Inventor: Michel Conroy
  • Patent number: 5360476
    Abstract: A thin protective coating for foam surfaced objects achieving high compression and impact strengths without the need of water curing.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: November 1, 1994
    Inventor: Burton K. Whatcott
  • Patent number: 5306344
    Abstract: The present invention is a specific combination of components having unique properties both in composition and benefits. Such a combination of portland cement type 1, fly ash type C in combination with a specific gradation of blast furnace slag and a specific gradation of fine aggregate in combination with a sodium lignosulfonic acid, sodium nitrate, sodium thiocyanate, triethanolamine, neutralized Vinsol resin and a coconut fatty acid diethanolamine.
    Type: Grant
    Filed: December 2, 1992
    Date of Patent: April 26, 1994
    Assignee: Edward C. Levy Company
    Inventors: Paul F. Gutmann, James L. Thornley
  • Patent number: 5294255
    Abstract: A pumpable backfill grout which hardens into a controlled low strength material and an additive for making up such a backfill grout. The grout consists essentially of portland cement, a smooth surfaced vesicular expanded perlite, fly ash, fine aggregate, water, an air entraining agent, a quick dispersing thixiotropic suspending agent and a bentonite thickening agent.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: March 15, 1994
    Assignee: Specrete-IP Incorporated
    Inventors: David A. Smetana, Richard J. Lenczewski, Alfonzo L. Wilson
  • Patent number: 5288807
    Abstract: This invention relates to vinyl monomer compositions having accelerated surface cure characteristics. These compositions are prepared from a vinyl monomer or monomer mixtures such as blend of isobornyl methacrylate and hydroxypropyl methacrylate, a bulk phase polymerization catalyst system, a polyvalent metal oxidative surface phase catalyst, and a diolefin rubber dispersed in the vinyl monomer as a surface cure accelerator. These compositions are useful as sealers, healers and for polymer concrete.
    Type: Grant
    Filed: July 2, 1991
    Date of Patent: February 22, 1994
    Assignee: Rohm and Haas Company
    Inventor: Frederick P. Hinz
  • Patent number: 5250113
    Abstract: Dry castable concrete compositions having improved strength and resistance to aggressive chemicals are provided. The compositions comprise water, hydraulic cement, fine and coarse aggregate, and condensed silica fume, wherein the weight ratio of condensed silica fume to hydraulic cement is about 0.10 to 0.25, the water to cement weight ratio is about 0.18 to 0.33, and the mix has a slump of about 1/2 inch or less. Also provided is a method of preparing the dry castable compositions using aqueous condensed silica fume slurries and a method of dry casting the compositions.
    Type: Grant
    Filed: July 31, 1991
    Date of Patent: October 5, 1993
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Neal S. Berke, Samuel F. Heleba, Mario A. Tamez
  • Patent number: 5151131
    Abstract: Oil field cement liquid fluid loss control additives and methods of field preparing such additives prior to preparing a cement composition containing the additive are provided. The method of field preparing the liquid fluid loss control additive comprises admixing an organophilic clay suspending agent with a liquid hydrocarbon, combining a surfactant with the mixture and then combining at least one hydrophilic polymer with the mixture to form the additive.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: September 29, 1992
    Assignee: Halliburton Company
    Inventors: John Burkhalter, Jolinda K. Suson