Slag Containing (e.g., Blast Furnace Slag, Etc.) Patents (Class 106/714)
  • Patent number: 10263199
    Abstract: A display device, including a substrate having a first region and second regions; transistors on the substrate in the first region and the second regions; first electrodes each connected to the transistors; an organic emission layer on the first electrodes; and second electrodes on the organic emission layer, molecular weights of organic materials of the organic emission layer in the first region and the organic emission layer in the second regions being different from each other.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: April 16, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Wook Chang, Young Hee Lee
  • Publication number: 20150144031
    Abstract: The invention comprises a method of making a cement-based object or structure having a compressive strength greater than about 1,000 psi. The method comprises placing a cement-based material in an insulated concrete form, wherein the insulated concrete form has an R-value of at least 1.5, wherein the cement-based material comprises approximately 10% to approximately 80% by weight portland cement, and at least one of approximately 10% to approximately 90% by weight slag cement and approximately 5% to approximately 80% by weight fly ash. The invention also comprises a method of making a cement-based object or structure. The invention further comprises objects or structures made by the foregoing methods.
    Type: Application
    Filed: January 30, 2015
    Publication date: May 28, 2015
    Inventor: Romeo Ilarian Ciuperca
  • Publication number: 20150144030
    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: Application
    Filed: January 22, 2015
    Publication date: May 28, 2015
    Inventors: John M. Guynn, Andrew S. Hansen
  • Publication number: 20150135997
    Abstract: A cementitious mixture including drinking water treatment waste (DWTW) solids, an aggregate, cement and water exhibits improved cement hydration, compressive strength and mitigated autogenous shrinkage. DWTW solids provide an internal curing agent for use with a cementitious mixture. DWTW solids are produced by a water treatment process of flocculating water to produce floc having entrained water, allowing the floc to settle out and dewatering the floc to produce DWTW solids. The DWTW solids form up to about 200 pounds per cubic yard of the cementitious mixture. The DWTW solids have a moisture content of about 5% to about 55% and a particle size of about 10 ?m to 150 ?m. The cementitious mixture may be cured to form concrete structural elements and products and masonry products. A method of using DWTW solids as an internal curing agent for cementitious mixtures produces cured concrete compositions having improved compressive strength and reduced autogenous shrinkage.
    Type: Application
    Filed: May 22, 2013
    Publication date: May 21, 2015
    Inventor: John T. Kevern
  • 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: 8961684
    Abstract: A method and system for producing modified coal combustion products are disclosed. The additives reduce the particle sizes of the coal combustion product and may reduce the amount of un-burned carbon in the coal combustion product, making the modified product useful as an addition to cementitious materials.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: February 24, 2015
    Assignee: Ash Improvement Technology Inc.
    Inventor: Wayne Fried
  • Patent number: 8951460
    Abstract: The invention comprises a method of making a cement-based object or structure having a compressive strength greater than about 1,000 psi. The method comprises placing a cement-based material in an insulated concrete form, wherein the insulated concrete form has an R-value of at least 1.5, wherein the cement-based material comprises approximately 10% to approximately 80% by weight portland cement, and at least one of approximately 10% to approximately 90% by weight slag cement and approximately 5% to approximately 80% by weight fly ash. The invention also comprises a method of making a cement-based object or structure. The invention further comprises objects or structures made by the foregoing methods.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: February 10, 2015
    Inventor: Romeo Ilarian Ciuperca
  • Patent number: 8932399
    Abstract: A pre-mixed mortar, stucco or masonry composition includes from 70 to 80 percent sand and from 20 to 30 percent of a light-weight cement mix composition. The light-weight cement mix composition comprises either slag cement, gypsum or a combination of slag cement and gypsum; Portland cement; silicon dioxide; calcium stearate; and metakaolin.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: January 13, 2015
    Inventor: Jorge G. Chiappo
  • Patent number: 8888910
    Abstract: Disclosed are encapsulated zinc compounds, together with methods for preparing and use the same. Also disclosed are methods for mixing the encapsulated zinc mixtures with a cement, and the resulting concrete compositions.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: November 18, 2014
    Assignees: Board of Regents of the University of Texas System, Kansas State University Research Foundation
    Inventors: Maria C. G. Juenger, Sarah Clare Taylor Lange, Kyle Riding
  • Patent number: 8821629
    Abstract: A pre-mixed mortar, stucco or masonry composition includes from 70 to 80 percent sand and from 20 to 30 percent of a light-weight cement mix composition that comprises either slag cement, Gypsum or a combination of slag cement and gypsum; Portland cement; clay; and polystyrene.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: September 2, 2014
    Inventor: Jorge G. Chiappo
  • Publication number: 20140238677
    Abstract: The current invention relates to the use of chitin nanocrystals and chitin nanocrystal derivatives. More specifically, the present invention relates to the use of chitin nanocrystals and chitin nanocrystals used in oil and gas operations. The chitin nanocrystals and chitin nanocrystals derivatives can be used as additives to cement and wellbore fluids and can be used to inhibit corrosion in pipelines, on downhole tools and on other oil and gas related equipment.
    Type: Application
    Filed: February 28, 2013
    Publication date: August 28, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventor: Lee Jeremy Hall
  • Publication number: 20140230696
    Abstract: The present invention relates to the production of ternesite clinkers containing 20 to 100% by weight C5S2$ and less than 15% by weight C4A3$, and to the use of ternesite as an additive to Portland cement or Portland composite cement, and to a binder containing 20 to 95% by weight Portland cement (clinker) and 80 to 5% by weight ternesite (clinker).
    Type: Application
    Filed: July 16, 2012
    Publication date: August 21, 2014
    Applicant: HEIDELBERGCEMENT AG
    Inventors: Frank Bullerjahn, Dirk Schmitt, Mohsen Ben Haha, Barbara Batog, Linda Irbe
  • Publication number: 20140202358
    Abstract: The present invention relates to concrete with necessary durability using seawater and sea sand. The seawater mixed concrete of the present invention is obtained by mixing a mixture including slag-containing cement and sea sand, with seawater. And by including a nitrite-based admixture and pozzolan, the diffusion coefficient of concrete after hardening can be reduced to restrain the external intrusion of harmful factors. Further, the concrete structure according to the present invention can include seawater mixed concrete and reinforcement for increasing tensile strength.
    Type: Application
    Filed: March 24, 2014
    Publication date: July 24, 2014
    Applicant: Obayashi Corporation
    Inventors: Shigeru Aoki, Makoto Kanai, Nobufumi Takeda, Yoshikazu Ishizeki
  • Patent number: 8741054
    Abstract: The present invention provides combustion products of hydrocarbon fuels and controlled amounts of metal oxide strength enhancing materials. The combustion products are useful as additives to cementitious materials. A hydrocarbon fuel such as coal is introduced into a combustion chamber and selected amounts of materials comprising CaO, SiO2 and Al2O3 are also introduced into and/or downstream from the chamber. The hydrocarbon fuel undergoes combustion while the metal oxide strength enhancing materials react with each other and/or the ash or other reaction products of the hydrocarbon fuel. The combustion products have been found to significantly increase compressive strengths of cements such as Portland cement. A reduction in SO2 emission levels also results from the introduction of the metal oxide strength enhancing materials into the combustion process.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: June 3, 2014
    Assignee: Ash Improvement Technology, Inc.
    Inventor: Wayne Fried
  • Patent number: 8741055
    Abstract: A method for the production of an alkali activated hydraulic binder, with the binder comprising slag, natural aluminum silicates, and an alkali activator, and the binder being free of CaSO4. The slag is provided in amounts greater than or equal to 20% (w/w), and the natural aluminum silicates are different from furnace slag, and are provided in amounts from 5 to 75% (w/w). The alkali activator is provided in an amount which corresponds to a Na2O equivalent defined as (Na2O+0.658 K2O) (ASTM C 150) between 0.7 and 4% (w/w). The method includes the step of heat treating a mixture of the slag, the natural aluminium silicates, and the alkali activator at temperatures between 40° C. and 50° C. for 4 to 6 hours.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: June 3, 2014
    Assignee: Holcim Technology Ltd.
    Inventors: Suz-chung Ko, Peter Kruspan, Juraj Gebauer
  • Publication number: 20140083333
    Abstract: The invention comprises a method of making a cement-based object or structure having a compressive strength greater than about 1,000 psi. The method comprises placing a cement-based material in an insulated concrete form, wherein the insulated concrete form has an R-value of at least 1.5, wherein the cement-based material comprises approximately 10% to approximately 80% by weight portland cement, and at least one of approximately 10% to approximately 90% by weight slag cement and approximately 5% to approximately 80% by weight fly ash. The invention also comprises a method of making a cement-based object or structure. The invention further comprises objects or structures made by the foregoing methods.
    Type: Application
    Filed: August 15, 2013
    Publication date: March 27, 2014
    Inventor: Romeo Ilarian Ciuperca
  • Publication number: 20140060389
    Abstract: Embodiments relate to cementing operations and, more particularly, in certain embodiments, to settable compositions that comprise kiln dust and wollastonite and methods of use in subterranean formations. An embodiment discloses a method of cementing comprising: providing a settable composition comprising kiln dust, wollastonite, and water; and allowing the settable composition to set.
    Type: Application
    Filed: November 13, 2013
    Publication date: March 6, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Darrell Chad Brenneis, Baya Adams, Craig Wayne Roddy
  • Patent number: 8662111
    Abstract: Economical heavy concrete weight coating is used as a weight coating for submarine pipes. The developed economical heavy concrete weight includes steel slag and iron ore as aggregate. Steel slag can contain iron and thus have a higher density than some other types of slag. By supplementing the steel slag with iron ore as aggregate, the economical heavy concrete weight coating can have a higher density than a coating having just slag. Economical heavy concrete weight coating can have a density greater than 190 pcf.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: March 4, 2014
    Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum and Minerals
    Inventors: Mohammed Al-Mehthel, Mohammed Maslehuddin, Bakr Hammad, Alaeddin A. Al-Sharif, Mohammed Ibrahim
  • Patent number: 8636941
    Abstract: The invention comprises a method of forming a slab on grade. The method comprises placing a first layer of insulating material horizontally on the ground and placing plastic concrete for a slab on grade on the first layer of insulating material. The plastic concrete is then formed into a desired shape having a top and sides. A second layer of insulating material is placed on the top of the plastic concrete and the first and second layers of insulating material are left in place until the concrete is at least partially cured. The second layer of insulating material is then removed. The product made by the method is also disclosed. A slab on grade is also disclosed.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: January 28, 2014
    Inventor: Romeo Ilarian Ciuperca
  • Patent number: 8545749
    Abstract: The invention comprises a method of making a cement-based object or structure having a compressive strength greater than about 1,000 psi. The method comprises placing a cement-based material in an insulated concrete form, wherein the insulated concrete form has an R-value of at least 1.5, wherein the cement-based material comprises approximately 10% to approximately 80% by weight portland cement, and at least one of approximately 10% to approximately 90% by weight slag cement and approximately 5% to approximately 80% by weight fly ash. The invention also comprises a method of making a cement-based object or structure. The invention further comprises objects or structures made by the foregoing methods.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: October 1, 2013
    Inventor: Romeo Ilarian Ciuperca
  • Publication number: 20130206041
    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: Application
    Filed: July 18, 2011
    Publication date: August 15, 2013
    Inventors: Dirk Van Mechelen, Isabelle Lecomie, Evelyne Nguyen
  • Publication number: 20130192493
    Abstract: Hydraulic cements, such as Portland cements and other cements that include substantial quantities of tricalcium silicate (C3S), dicalcium silicate (C2S), tricalcium aluminate (C3A), and/or tetracalcalcium alumino-ferrite (C4AF), are particle size optimized to have increased reactivity compared to cements of similar chemistry and/or decreased water demand compared to cements of similar fineness. Increasing hydraulic cement reactivity increases early strength development and release of reactive calcium hydroxide, both of which enhance SCM replacement and 1-28 day strengths compared to blends of conventional Portland cement and one or more SCMs, such as coal ash, slag or natural pozzolan. Decreasing the water demand can improve strength by decreasing the water-to-cement ratio for a given workability. The narrow PSD cements are well suited for making blended cements, including binary, ternary and quaternary blends.
    Type: Application
    Filed: March 13, 2013
    Publication date: August 1, 2013
    Applicant: ROMAN CEMENT LLC
    Inventor: Roman Cement LLC
  • Publication number: 20130119576
    Abstract: The invention comprises a method of making a cement-based object or structure having a compressive strength greater than about 1,000 psi. The method comprises placing a cement-based material in an insulated concrete form, wherein the insulated concrete form has an R-value of at least 1.5, wherein the cement-based material comprises approximately 10% to approximately 80% by weight portland cement, and at least one of approximately 10% to approximately 90% by weight slag cement and approximately 5% to approximately 80% by weight fly ash. The invention also comprises a method of making a cement-based object or structure. The invention further comprises objects or structures made by the foregoing methods.
    Type: Application
    Filed: September 25, 2012
    Publication date: May 16, 2013
    Inventor: Romeo Ilarian Ciuperca
  • Patent number: 8419852
    Abstract: An application for a pre-mixed mortar, stucco or masonry composition includes a approximately 75% sand and 25% of a light-weight cement mix comprising a cement (either Portland cement or Gypsum), ground granulated blast furnace slag, sodium tall oil, sodium stearate, sodium C14-16 Alpha Olefin, linear alkyl benzene; and silicon dioxide.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: April 16, 2013
    Inventor: Jorge G Chiappo
  • Patent number: 8419851
    Abstract: Mixed cement containing mainly ground granulated blast furnace slag with an alumina ratio of 12 to 17.5 mass % and Portland cement, wherein a ratio of mixture of the ground granulated blast furnace slag is made 10 to 60 mass % and wherein plaster having a specific surface area of 7000 cm2/g or more is mixed in by a ratio of 2 to 4 mass % converted to SO3 mass. By using this mixed cement as a concrete material, it is possible to suppress expansion of the concrete even if in contact with soil containing residual sulfates over a long period.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: April 16, 2013
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Tetsuharu Ibaraki, Yukihiko Nagao
  • Patent number: 8414700
    Abstract: Hydraulic cements, such as Portland cements and other cements that include substantial quantities of tricalcium silicate (C3S), dicalcium silicate (C2S), tricalcium aluminate (C3A), and/or tetracalcalcium alumino-ferrite (C4AF), are particle size optimized to have increased reactivity compared to cements of similar chemistry and/or decreased water demand compared to cements of similar fineness. Increasing hydraulic cement reactivity increases early strength development and release of reactive calcium hydroxide, both of which enhance SCM replacement and 1-28 day strengths compared to blends of conventional Portland cement and one or more SCMs, such as coal ash, slag or natural pozzolan. Decreasing the water demand can improve strength by decreasing the water-to-cement ratio for a given workability. The narrow PSD cements are well suited for making blended cements, including binary, ternary and quaternary blends.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: April 9, 2013
    Assignee: Roman Cement, LLC
    Inventors: John M. Guynn, Andrew S. Hansen
  • Publication number: 20130074736
    Abstract: This invention relates to a new class of chemical admixtures for hydraulic cement compositions such as pastes, mortars, grouts and concretes. The cement compositions are comprised of ordinary Portland cement, blended cements, or non-Portland cements made with Supplementary Cementitious Materials. The admixtures contain complexes of metals with derivatives of hydroxycarboxylic acids, and improve properties of cement compositions, including setting, hardness, compressive strength, shrinkage, and freeze-thaw resistance. The invention discloses a method for improving the properties of hydraulic cements by adding the disclosed chemical admixtures to cement compositions, and also discloses methods of preparing said admixtures.
    Type: Application
    Filed: September 22, 2012
    Publication date: March 28, 2013
    Inventor: Iqbal Gill
  • Patent number: 8377201
    Abstract: Hydraulic cements, such as Portland cements and other cements that include substantial quantities of tricalcium silicate (C3S), dicalcium silicate (C2S), tricalcium aluminate (C3A), and/or tetracalcalcium alumino-ferrite (C4AF), are particle size optimized to have increased reactivity compared to cements of similar chemistry and/or decreased water demand compared to cements of similar fineness. Increasing hydraulic cement reactivity increases early strength development and release of reactive calcium hydroxide, both of which enhance SCM replacement and 1-28 day strengths compared to blends of conventional Portland cement and one or more SCMs, such as coal ash, slag or natural pozzolan. Decreasing the water demand can improve strength by decreasing the water-to-cement ratio for a given workability. The narrow PSD cements are well suited for making blended cements, including binary, ternary and quaternary blends.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: February 19, 2013
    Assignee: Roman Cement, LLC
    Inventors: John M. Guynn, Andrew S. Hansen
  • Patent number: 8328931
    Abstract: The present invention concerns a hydraulic binder comprising a ground blast furnace slag in an amount comprised between 30% and 95% by mass on the binder, Portland cement clinker in an amount equal to or greater than 5% by mass on the binder, and at least one sulphate as activator, characterised in that said slag has the following properties and composition by mass: grinding fineness greater than 4000 cm2/g Blaine glass content greater than 80% SiO2: 30-40% Al2O3: 9-13% CaO: 34-42% with a (CaO+MgO)/(Al2O3+SiO2) ratio greater than 1; and in that said sulphate is contained in a total amount, expressed as SO3, comprised between 0.6% and 4.5% by mass on the binder.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: December 11, 2012
    Assignee: Italcementi S.p.A.
    Inventors: Stefano Cangiano, Antonio Princigallo
  • Publication number: 20120291673
    Abstract: An application for a pre-mixed mortar, stucco or masonry composition includes a approximately 75% sand and 25% of a light-weight cement mix comprising a cement (either Portland cement or Gypsum), ground granulated blast furnace slag, sodium tall oil, sodium stearate, sodium C14-16 Alpha Olefin, linear alkyl benzene; and silicon dioxide.
    Type: Application
    Filed: August 1, 2012
    Publication date: November 22, 2012
    Inventor: Jorge G. Chiappo
  • Publication number: 20120260828
    Abstract: The present invention provides settable compositions and methods of using settable compositions that comprise a hydraulic cement; a partially calcined kiln feed comprising SiO2, Al2O3, Fe2O3, CaO, MgO, SO3, Na2O, and K2O; metakaolin; and water.
    Type: Application
    Filed: June 27, 2012
    Publication date: October 18, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Craig W. Roddy, Jiten Chatterji, D. Chad Brenneis, Bobby J. King
  • Publication number: 20120234209
    Abstract: The present invention concerns a hydraulic binder comprising a ground blast furnace slag in an amount comprised between 30% and 95% by mass on the binder, Portland cement clinker in an amount equal to or greater than 5% by mass on the binder, and at least one sulphate as activator, characterised in that said slag has the following properties and composition by mass: grinding fineness greater than 4000 cm2/g Blaine glass content greater than 80% SiO2: 30-40% Al2O3: 9-13% CaO: 34-42% with a (CaO+MgO)/(Al2O3+SiO2) ratio greater than 1; and in that said sulphate is contained in a total amount, expressed as SO3, comprised between 0.6% and 4.5% by mass on the binder.
    Type: Application
    Filed: November 30, 2010
    Publication date: September 20, 2012
    Inventors: Stefano Cangiano, Antonio Princigallo
  • Patent number: 8257488
    Abstract: A cementitious composition capable of forming a high, early-phase strength cement may comprise construction grade cement and ground blast furnace slag, the ground blast furnace slag having a Blaine fineness less than about 250 m2/kg. The cementitious composition may comprise, for each 100% by weight, greater than about 50% by weight construction grade portland cement and less than about 50% by weight ground blast furnace slag, and the cementitious composition may have a Blaine fineness less than about 300 m2/kg. Methods of making and using such a cementitious composition to cement a structure are also described.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: September 4, 2012
    Assignee: Capitol Aggregates, Inc.
    Inventors: Jose Garcia, Louis U. Spellman
  • Patent number: 8221541
    Abstract: Disclosed is a heavyweight concrete composition using slag byproducts, including: ground granulated blast furnace slag; slow-cooled electric-arc-furnace oxidizing slag or atomized steel slag used as a fine aggregate; a coarse aggregate; water; and a chemical admixture based on 100 parts by weight high-early-strength cement. Thus, the heavyweight concrete composition contains a large quantity of steel slag and blast-furnace slag that are byproducts in iron-making and steel-making processes, thereby remarkably reducing an amount of emission of carbon dioxide and maximizing the recycling of waste resources for preserving the natural environment. As a result, an eco-friendly heavyweight concrete product can be made.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: July 17, 2012
    Assignee: Korea Railroad Research Institute
    Inventors: Tae Hoon Koh, Seong Ho Han, Seon Keun Hwang, Tae Hwan Ko
  • Publication number: 20120137932
    Abstract: The present invention discloses compositions and methods wherein air entrained in cementitious materials at least one air-entraining cement additive is detrained using an ethoxylated, propoxylated fatty alcohol or alkylphenol having robustness for withstanding the harsh temperature and mechanical shearing effects of cement grinding mills. Exemplary air-entraining cement additives include a tertiary alkanolamine, a lignosulfonic acid or salt thereof, naphthalene sulfonate formaldehyde condensate, melamine sulfonate formaldehyde condensate, a glycol, a glycerin, or mixtures thereof.
    Type: Application
    Filed: August 5, 2010
    Publication date: June 7, 2012
    Inventor: Josephine Cheung
  • Publication number: 20120137933
    Abstract: Disclosed is a heavyweight concrete composition using slag byproducts, including: ground granulated blast furnace slag; slow-cooled electric-arc-furnace oxidizing slag or atomized steel slag used as a fine aggregate; a coarse aggregate; water; and a chemical admixture based on 100 parts by weight high-early-strength cement. Thus, the heavyweight concrete composition contains a large quantity of steel slag and blast-furnace slag that are byproducts in iron-making and steel-making processes, thereby remarkably reducing an amount of emission of carbon dioxide and maximizing the recycling of waste resources for preserving the natural environment. As a result, an eco-friendly heavyweight concrete product can be made.
    Type: Application
    Filed: September 30, 2010
    Publication date: June 7, 2012
    Applicant: KOREA RAILROAD RESEARCH INSTITUTE
    Inventors: Tae Hoon Koh, Seong Ho Han, Seon Keun Hwang, Tae Hwan Ko
  • Publication number: 20120132111
    Abstract: A method for the production of an alkali activated hydraulic binder, with the binder comprising slag, natural aluminum silicates, and an alkali activator, and the binder being free of CaSO4. The slag is provided in amounts greater than or equal to 20% (w/w), and the natural aluminum silicates are different from furnace slag, and are provided in amounts from 5 to 75% (w/w). The alkali activator is provided in an amount which corresponds to a Na2O equivalent defined as (Na2O+0.658K2O) (ASTM C 150) between 0.7 and 4% (w/w). The method includes the step of heat treating a mixture of the slag, the natural aluminium silicates, and the alkali activator at temperatures between 40° C. and 50° C. for 4 to 6 hours.
    Type: Application
    Filed: December 7, 2011
    Publication date: May 31, 2012
    Applicant: Holcim Technology Ltd.
    Inventors: Suz-chung Ko, Peter Kruspan, Juraj Gebauer
  • Patent number: 8177908
    Abstract: A binder for mine tailings, alluvial sand and other aggregate used as a backfill for an underground void comprises ferrous slag, cement kiln dust and/or lime kiln dust, and Portland cement and/or lime; the binder displays strength characteristics better than or comparable to those achieved with conventional binders based on Portland cement or Portland cement and slag.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: May 15, 2012
    Assignee: Lafarge Canada Inc.
    Inventor: Brian O'Hearn
  • Publication number: 20120111236
    Abstract: Reduced-carbon footprint compositions, and methods for making and using the same, are provided. Aspects of the reduced-carbon footprint compositions include producing carbonate compositions from CO2, which compositions may replace conventional hydraulic cement and/or aggregate components of the compositions. The reduced-carbon footprint compositions find use in a variety of applications, including use in a variety of building materials and building applications.
    Type: Application
    Filed: November 11, 2011
    Publication date: May 10, 2012
    Inventors: Brent R. CONSTANTZ, Andrew Youngs, Terence C. Holland, Joshua Patterson
  • Patent number: 8162058
    Abstract: Methods and compositions are provided that relate to cementing operations. Methods and compositions that include a latex strength enhancer for enhancing the compressive strength of slag compositions.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: April 24, 2012
    Assignee: Halliburton Energy Services Inc.
    Inventors: Jiten Chatterji, Callie R. Jarratt, Chad Brenneis
  • Patent number: 8147609
    Abstract: A non-dispersible concrete for underwater and underground construction is disclosed, whose composition primarily comprises: coarse aggregate in a range of from 600 to 1200 kgw/m3; fine aggregate 500 to 1100 kgw/m3, with a fineness modulus (F.M.) in a range of from 2.2 to 3.2; powder 300 to 700 kgw/m3; mixing water 140 to 300 kgw/m3; and cohesion-enhancing admixture (for example, polyacrylamide, PAA) whose solid content is 0.1 to 5.0 wt % of the powder. In addition, a SCC for underwater and underground construction is also developed and has excellent property of self-consolidation (its test value is 400 to 750 mm in slump flow spread test) and an appropriate compressive strength (between 14 to 70 MPa), so as can be widely applied to underwater and underground construction, whose composition further includes superplasticizer with solid content 0.1 to 3.0 wt % of the powder. Also, it covers: water to binder ratio (W/B) of 0.22 to 1.00, paste volume 0.25 to 0.60 m3, and water/powder volume ratio 0.5 to 2.95.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: April 3, 2012
    Inventor: Wen-Chen Jau
  • Patent number: 8124569
    Abstract: The invention discloses a cement slurry composition for cementing a well comprising: an hydraulic cement, water and a combination made of a cellulosic polymer and an acrylamido-methyl-propane sulfonate co- or ter-polymer, wherein the density of said cement slurry is above 1700 kg/m3.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: February 28, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Tariq Mehmood Khan, Bernard Piot, Siti Humairah Abd Rahman
  • Patent number: 8110039
    Abstract: A method of manufacturing a hydratable cementitious material, which includes: a) providing at least one waste material containing calcium, silica, magnesium, aluminium, and/or iron; b) thermally treating each waste material to a first temperature such that surface water vapour present is substantially removed; and c) blending the treated waste material such that the resultant blend has a reactive oxide chemical/physical composition in the following range, by weight of the blend: Calcium Oxide 7.0 to 76% Alumina 0.1 to 30% Iron Oxide 0.4 to 19% Silica Oxide 1 to 36% Magnesia 0.1 to 2%. The resultant blend from step c) may subsequently be mixed with Portland cement.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: February 7, 2012
    Assignee: Cenin Limited
    Inventor: Gary Hunt
  • Patent number: 8105500
    Abstract: A slurry rheology modifier comprises a first water-soluble low-molecular compound [referred to hereinafter as compound (A)] and a second water-soluble low-molecular compound [referred to hereinafter as compound (B)] being different from the compound (A), wherein the viscosity of an aqueous solution at 20° C. prepared by mixing an aqueous solution SA (with a viscosity at 20° C. of 100 mPa·s or less) of compound (A) with an aqueous solution SB (with a viscosity at 20° C. of 100 mPa·s or less) of compound (B) in the ratio of 50/50 by weight can be at least twice as high as the viscosity of either aqueous solution before mixed.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: January 31, 2012
    Assignee: Kao Corporation
    Inventors: Hotaka Yamamuro, Koji Koyanagi, Daisuke Shiba
  • Patent number: 8101016
    Abstract: A precast concrete component material mixture and method of precasting, which is used to manufacture sleepers for transportation tracks, and related precast concrete components, are provided. The precast concrete component material mixture include: 891 to 963 kg/m3 of coarse aggregate(ca); 811 to 876 kg/m3 of fine aggregate(fa); pozzolan material containing 90 to 97 kg/m3 of fly ash and 31 to 34 kg/m3 of silica fume; cementing material containing 235 to 350 kg/m3 of cement and 78 to 117 kg/m3 of blast furnace slag; 122 to 165 kg/m3 of water; carboxylic acid superplasticizer, which is 0.7 to 2.0 wt % of the total usage of the pozzolan and cementing material; and steel fiber accounting for 0.5 to 1.0% of the total volume.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: January 24, 2012
    Assignee: China Steel Corporation
    Inventors: Pi-Sung Hou, Hsi-Yi Hsieh, Chao-Lung Hwang, Chun-Tsun Chen
  • Patent number: 8080105
    Abstract: Methods of manufacture and use of flowable materials are provided. The flowable fill materials include a cement-based fill material with a cement component and an aggregate component that are mixed with a chemical agent and the like in water. This provides the cement-based material in a flowable state that can be controllably set over time.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: December 20, 2011
    Assignee: VCNA Prairie IP, Inc.
    Inventors: Jeffrey Jerald Krozel, Gary Lee Matney
  • Publication number: 20110290493
    Abstract: Disclosed are compositions and methods for providing fluid-loss control in subterranean wells. Well-completion fluids contain fine particulate additives whose glass-transition temperatures are below the anticipated bottomhole temperature. The particles soften upon injection into the well, whereupon they soften and become deformable. The particles then migrate to the borehole wall and form a seal that reduces further fluid flow from the borehole into the formation. The additive may be supplied as a powder or in the form of a liquid suspension.
    Type: Application
    Filed: December 3, 2009
    Publication date: December 1, 2011
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Simon James
  • Publication number: 20110290154
    Abstract: A cementitious composition for high density, low porosity sheet-form building materials having solid surfaces is comprised of cement, pozzolans, and a high percentage of fine and/or coarse glass aggregate.
    Type: Application
    Filed: August 12, 2011
    Publication date: December 1, 2011
    Applicant: POLYCOR VETRAZZO, INC.
    Inventor: Donald Martin McPherson
  • Publication number: 20110136946
    Abstract: Slurry composition for ground improvement is obtained from cement, water and an admixture. The slurry composition cement is of a kind prepared by using blast-furnace slag cement of a specified type as the cement at a water/blast-furnace slag cement mass ratio of 40-250% and contains the admixture in an amount of 0.1-5 mass parts for 100 mass parts of the blast-furnace slag cement. The blast-furnace slag cement of the specified type contains blast-furnace slag fine particles with fineness 3000-13000 cm2/g in an amount of 60-80 mass % and portland cement in an amount of 20-40 mass % for a total of 100 mass %.
    Type: Application
    Filed: February 16, 2011
    Publication date: June 9, 2011
    Inventors: Takao Kono, Toshio Yonezawa, Eiji Sato, Tomonori Yoshida, Mitsuo Kinoshita, Shinji Tamaki
  • Patent number: 7905956
    Abstract: A fiber reinforced cement composition having the following raw material composition is provided to manufacture a fiber reinforced cement product which is excellent in bending strength, dimension stability, handling property, flexibility performance, and processability such as nail performance, as well as to provide a process for manufacturing the product. Namely, the fiber reinforced cement composition comprises a hydraulic inorganic material, a siliceous material and a woody reinforcement in a mass ratio of CaO to SiO2 contained in the hydraulic inorganic material and the siliceous material in the raw materials in a range of from 23:77 to 60:40.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: March 15, 2011
    Assignee: Nichiha Corporation
    Inventors: Kazuo Utagaki, Tadashi Sugita, Satoshi Takayama