| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Cement admixture and cement composition | US13991524 | 2011-10-24 | US08663384B2 | 2014-03-04 | Takayuki Higuchi; Tsutomu Kida; Ryoetsu Yoshino |
| The invention provides a cement admixture that improves the ability of concrete to bring about high initial strength, works in favor of enhancing the effect on hexavalent chromium reductions, and is less likely to decrease in the effect on hexavalent chromium reductions even upon storage as well as a method for reducing hexavalent chromium. The invention is embodied as (1) A cement admixture, characterized by comprising an expanding material containing free lime, a hydraulic compound and calcium sulfate anhydrite, and a tin sulfate-containing substance; (2) The cement admixture according to (1), characterized in that the tin sulfate-containing substance is contained in an amount of 0.2 to 8 parts by mass—as calculated on a tin sulfate basis—in a total of 100 parts by mass of the expanding material and the tin sulfate-containing substance; (3) The cement admixture according to (1) or (2), characterized in that the expanding material has been treated with carbon dioxide gas to form calcium carbonate therein; (4) The cement admixture according to any one of (1) to (3), characterized in that the expanding material has been surface treated with a shrinkage reducer; (5) A cement composition, characterized by containing cement, and the cement admixture according to any one of (1) to (4); and (6) A method for reducing hexavalent chromium, characterized by use of the cement composition according to (5). | ||||||
| 82 | Fly ash-based cementitious mixture | US13914758 | 2013-06-11 | US08617438B1 | 2013-12-31 | Kyle Scott Douglas; Dustin Marion Hulbert; Amitabha Kumar; Thomas McClure Pounds; Julie Robyn Rapoport; Michael Alexander Telischak; Susanne Rebecca Williams |
| A cementitious mixture for high-volume production of masonry products comprises a hydraulic binder accounting for 20 wt % or more of the cementitious mixture, the hydraulic binder comprising 75 to 100 wt % Class C fly ash with a CaO equivalent content of at least 15% by weight. The cementitious mixture also comprises one or more aggregates, and a set control system. | ||||||
| 83 | Narrow PSD hydraulic cement, cement-SCM blends, and methods for making same | US13798756 | 2013-03-13 | US08551245B2 | 2013-10-08 | John M. Guynn; Andrew S. Hansen |
| 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. | ||||||
| 84 | NARROW PSD HYDRAULIC CEMENT, CEMENT-SCM BLENDS, AND METHODS FOR MAKING SAME | US13798756 | 2013-03-13 | US20130192493A1 | 2013-08-01 | John M. Guynn; Andrew S. Hansen |
| 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. | ||||||
| 85 | NARROW PSD HYDRAULIC CEMENT, CEMENT-SCM BLENDS, AND METHODS FOR MAKING SAME | US13183205 | 2011-07-14 | US20120012034A1 | 2012-01-19 | John M. Guynn; Andrew S. Hansen |
| 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. | ||||||
| 86 | Method for the integrated production of casts and mortars and of gravel substitute | US10498282 | 2002-12-05 | US20050132934A1 | 2005-06-23 | Eckehard Maruhn |
| A method for the integrated production of casts and mortars on the basis of hydraulic binders and in gravel substitute. In a first step, slag is subdivided into a first and a second fraction having different average grain sizes. The first fraction having a larger average grain size is size-reduced and returned to the slag, and the iron-containing components and optionally plastics and paper are removed from the second fraction having a smaller average grain size. In a second step, the second fraction is subdivided into superfines and gravel, the superfines being used, after optionally removing non-iron metals, for producing hydraulic binders. In a third step, the hydraulic binders are used with superfines and tectosilicates for producing casts and mortars, and with gravel to produce a gravel substitute. | ||||||
| 87 | Cement admixture | US10507682 | 2003-03-19 | US20050115465A1 | 2005-06-02 | Daisuke Sawaki; Shuuichi Harasawa; Kenichi Honma; Makihiko Ichikawa |
| A burned product containing 100 parts by weight of C2S, 10 to 100 parts by weight of C2AS, and 20 parts by weight or less of C3A; a cement admixture prepared by grinding the burned product; and a cement containing 100 parts by weight of ground portland cement clinker and 5 to 100 parts by weight of a ground product of the burned product. Through use of a cement admixture produced by grinding the burned product of the present invention, cement products exhibiting low heat of hydration and good fluidity can be obtained. | ||||||
| 88 | Use of high carbon coal ash | US10078235 | 2002-02-15 | US06755905B2 | 2004-06-29 | David Bridson Oates; John Graham Whellock; Philip Souza Zacarias |
| A synthetic slag is produced by a high temperature combustion reaction between coal ash having a high carbon content, and a source of lime such as cement kiln dust. The carbon content of the coal ash is oxidized by oxygen gas, which typically is derived from air or an air/oxygen combination in an exothermic reaction and the heat generated is exploited in the melting process. In this way the gaseous products will typically comprise nitrogen, unreacted oxygen and carbon dioxide, and heat energy can be readily recovered from the hot off gas products evolving during the combustion reaction. The synthetic slag may be pelletized and employed as lightweight mineral aggregate or milled to cement fineness to provide slag cement. | ||||||
| 89 | Use of high carbon coal ash | US10078235 | 2002-02-15 | US20030154887A1 | 2003-08-21 | David Bridson Oates; John Graham Whellock; Philip Souza Zacarias |
| A synthetic slag is produced by a high temperature combustion reaction between coal ash having a high carbon content, and a source of lime such as cement kiln dust. The carbon content of the coal ash is oxidized by oxygen gas, which typically is derived from air or an air/oxygen combination in an exothermic reaction and the heat generated is exploited in the melting process. In this way the gaseous products will typically comprise nitrogen, unreacted oxygen and carbon dioxide, and heat energy can be readily recovered from the hot off gas products evolving during the combustion reaction. The synthetic slag may be pelletized and employed as lightweight mineral aggregate or milled to cement fineness to provide slag cement. | ||||||
| 90 | Process for producing both steam power and cement clinker simultaneously in one apparatus its products, apparatus and use | US08696676 | 1996-08-14 | US06468345B1 | 2002-10-22 | Xuefang Zhu; Ben'en Liu |
| The present invention discloses a process for producing both steam power and the fast-burnt cement clinker/fast burnt modified coal ash simultaneously in one apparatus, the fast-burnt cement clinker/fast-burnt modified coal ash prepared by said process as well as cement products prepared using them as active substance. It also discloses the apparatus suitable for embodying this process. Said process of the present invention possesses the technoligical features of fast-burning and fast-cooling and contributes a good hydraulic cementitious activity to the said fast-burnt cement clinker/fast-burnt modified coal ash which are capable of being directly used as active substance in cement production of high quality. | ||||||
| 91 | Combustion furnace | US769984 | 1985-08-22 | US4646661A | 1987-03-03 | Johann Roos; Hans F. Flender |
| Industrial furnace for the combustion of solid, liquid, pasty or gaseous fuels, including at least two fluidized beds through which hot gas passes from the bottom, and which are offset in height in the transport direction of the fuel into the combustion chamber according to a reciprocal delimitation one behind the other and in step, after adjusting a mean combustion temperature between preferably 500.degree. and 800.degree. C. It is further possible to recover from household refuse, and/or industrial refuse similar to household refuse, a fraction of fuel rich in energy and low in noxious products by preparation via drum screens, hammer mills, and sliding plate and rod screens of a particulate size between 120 and 500 mm. | ||||||
| 92 | Pozzolanic product produced from bagasse ash | US951082 | 1978-10-13 | US4249954A | 1981-02-10 | Boyd T. Keogh |
| A product adapted for use as a filtration material, absorption material, or as a pozzolanic material in the production of concrete, is produced from unprocessed sugar mill boiler ash by crushing and optionally screening the unprocessed ash and then grinding the crushed ash. Alternatively, unprocessed ash may be screened to remove particles of a size greater than desired. The grade of the product may be controlled by removing fine particulate material from the ground ash and then recombining the separated materials in desired proportions. | ||||||
| 93 | Humate utilization techniques | US73021 | 1979-09-06 | US4248640A | 1981-02-03 | Robert L. Baker |
| Humate is utilized by drying the humate which results as a waste product and then mixing it with coal so that it can be burned to result in an ash residue which in turn is mixed with conventional dry cement ingredients for use as cement. | ||||||
| 94 | Process for utilizing coal residues | US3759730D | 1971-04-30 | US3759730A | 1973-09-18 | TRIEF L |
| COAL RESIDUES SUCH AS POWER STATION ASH OR MINING WASTE PRODUCTS, ARE MIXED WITH CALCIUM CARBONATE AND FIRED AT ABOUT 1300*C. THE FIRED MIXTURE IS THEN HEATED TO AT LEAST ABOUT 1500*C. TO TRANSFORM IT TO A MOLTEN SLAG. THE MOLTEN SLAG IS QUENCHED FROM ABOUT 1500*C. TO FORM GRANULES WHICH ARE COMMINUTED TO GET A PURE HYDRAULIC BINDER INTO WHICH IS INCORPORATED A SETTING AND HARDENING AGENT.
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| 95 | Process of burning solid fuel to produce slag suitable for portland cement | US32150152 | 1952-11-19 | US2745657A | 1956-05-15 | OSTER THOMAS H |
| 96 | MORTAR OR CONCRETE PRODUCED WITH A HYDRAULIC BINDER | US15541216 | 2014-12-30 | US20180002229A1 | 2018-01-04 | Enrique BURGOS ENRIQUEZ |
| The invention relates to mortar or concrete produced with a hydraulic binder, comprising aggregates from cinders from the bottom of municipal waste incinerators and/or from slurry from wastewater treatment plants, or other natural or artificial aggregates, of different particle sizes depending of the use thereof as mortar or concrete, and a binder consisting of: glass and/or other pozzolans; pure Portland clinker with gypsum or plaster of Paris, or the resulting cements following the grinding thereof; and/or optionally lime, depending on the quantity of glass and/or pozzolans; all of the materials forming the base of the binder being ground and mixed together until a binder is obtained, together with the aggregates, with cementing mineral neoformations and a strong pozzolanic character. | ||||||
| 97 | METHOD FOR PRODUCING A POZZOLANIC OR LATENT-HYDRAULIC CEMENT CLINKER SUBSTITUTE | US15101572 | 2014-12-04 | US20160304395A1 | 2016-10-20 | Kathrin Rohloff; Michael Enders |
| Methods for producing pozzolanic or latent hydraulic cement clinker substitutes may involve calcining clay with a fuel comprising a mineral substance at temperatures in the range from 500 to 1250° C., preferably from 550 to 1150° C., most preferably from 700 to 900° C. A resulting mixture of mineral substance from the fuel and the calcined clay forms a pozzolanic or latent hydraulic cement clinker substitute, in which a fraction of the mineral substance incorporated into the pozzolanic or latent hydraulic cement clinker substitute by the fuel is 1-60% by weight. | ||||||
| 98 | SYSTEM FOR REPROCESSING CARBONACEOUS WASTE MATERIALS TO PRODUCE ENERGY AND CARBON-FREE MATERIALS | US15069233 | 2016-03-14 | US20160194567A1 | 2016-07-07 | Bary Wallace Wilson; Brandon Ruf Wilson |
| The invention provides an apparatus that thermally processes solid waste such as municipal solid waste to generate heat for production of steam that is employed to generate electrical power. The apparatus provides clean efficient gasification of refuse derived fuel to minimize air pollutants such as nitrogen oxides and uses released thermal energy to produce steam for electricity. Carbon in the solid waste is converted to synthesis gas or syngas that is combusted to generate steam or electricity. The apparatus recovers energy from residual carbon that is normally rejected by air fed gasifiers and partially recycles the flue gas to control combustion temperature and oxygen content in the fuel gas burner. The apparatus extends boiler service life by reducing the temperature of hot gases entering the boiler and produces clean electrical energy from materials that otherwise would be discarded as environmentally damaging waste. | ||||||
| 99 | Ternesite used as an activator for latent-hydraulic and pozzolanic materials | US14238947 | 2012-07-16 | US09302940B2 | 2016-04-05 | Frank Bullerjahn; Dirk Schmitt; Mohsen Ben Haha; Barbara Batog; Linda Irbe |
| The present invention relates to binders based on latently hydraulic and/or pozzolanic materials that are activated by an addition of ternesite (C5S2$). | ||||||
| 100 | Method and additive for increasing early strength | US14238976 | 2012-07-16 | US09212091B2 | 2015-12-15 | Frank Bullerjahn; Dirk Schmitt; Mohsen Ben Haha |
| The present invention relates to a method for accelerating the hardening of hydraulic or latent hydraulic binders, wherein ternesite and an aluminum component are added to the binder, and relates to an additive that increasing early strength for hydraulic or latent hydraulic binders that contain ternesite and a non-hydraulically reactive aluminum component, and relates to the use of an additive comprising ternesite and an aluminum component for the purpose of accelerating the hardening of hydraulic or latent hydraulic binders. | ||||||
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