序号 | 专利名 | 申请号 | 申请日 | 公开(公告)号 | 公开(公告)日 | 发明人 |
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81 | METHODS AND COMPOSITIONS FOR CONCRETE PRODUCTION | US15650524 | 2017-07-14 | US20180029934A1 | 2018-02-01 | George Sean Monkman; Kevin Cail; Paul J. Sandberg; Mark MacDonald; Joshua Jeremy Brown; Dean Paul Forgeron |
The invention provides compositions and methods directed to carbonation of a cement mix during mixing. The carbonation may be in a stationary mixer or a transportable mixer, such as a drum of a ready-mix truck. | ||||||
82 | High early strength cement-SCM blends | US14305954 | 2014-06-16 | US09272953B2 | 2016-03-01 | 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. | ||||||
83 | Modification of pozzolanic chemistry through blending | US13030123 | 2011-02-17 | US09067824B1 | 2015-06-30 | Andrew S. Hansen; John M. Guynn |
The present disclosure relates to methods for controlling the chemical composition of a first pozzolan by blending it with a different pozzolan having a different chemical composition. The method includes intimately mixing the two pozzolans and using a chemical analyzer to determine a chemical characteristic of the pozzolan fraction being produced. The output from the chemical analyzer is then used to control the blending of the first and second outputs to maintain the chemical characteristic within a desired range. | ||||||
84 | Process for the Manufacture of Synthetic Pozzolan | US13323306 | 2011-12-12 | US20120160135A1 | 2012-06-28 | James Ballan; Ove Lars Jepsen; Peter Paone; John S. Salmento |
Disclosed is a process for the manufacturing of synthetic pozzolan with desirable color properties. Feed material is dried, crushed, and preheated in a drier crusher. The dry, crushed material is collected and fed to a calciner where it is heated to become a synthetic pozzolan. The synthetic pozzolan is then fed to a cooler where it is maintained for a least a portion of the cooling step in a reducing atmosphere. | ||||||
85 | Method of improving material comprising a pozzolanic component | US10507869 | 2003-03-19 | US07438756B2 | 2008-10-21 | Joseph Jan Peter Biermann; Nicolaas Voogt |
The invention relates to a method of improving a material comprising a pozzolanic component. According to the invention the material is treated with an aqueous liquid resulting in treated, calcium-depleted material and a calcium-enriched aqueous solution, which are subsequently separated. This provides a material having an increased pozzolanity and/or increased specific surface area. | ||||||
86 | Low alkali, non-crystaline, vitreous silica fillers | US11477137 | 2006-06-28 | US20070042890A1 | 2007-02-22 | Raymond Hemmings; Robert Nelson; Philip Graves; Bruce Cornelius |
A substantially white powder for use as a filler and/or extender derived from by-products of manufacturing vitreous low alkali, low iron glass fibers, and a method for producing the powder. The filler has very low alkalinity and by virtue of its being essentially free of crystalline silica is non-hazardous to health and therefore safe for consumer-based and industrial-based uses. | ||||||
87 | Process for producing a blended cement having enhanced cementitious properties capable of combination with class C fly ash | US10095219 | 2002-03-11 | US20020129743A1 | 2002-09-19 | Max L. Frailey; John G. Wheeler |
The present invention provides a method of producing a blended cement capable of meeting ASTM C-595 and C-1157 standards. The blended cement of the present invention contains portland cement clinker, calcium sulfate and volcanic ash. The volcanic ash utilized by the present invention has been subjected to heat in the range of between 800null F. and 1300null F. and contains between 40% and 45% hollow spheres unable to pass null325 sieve. The portland cement clinker, calcium sulfate and volcanic ash are interground to an ultimate blaine fineness of between 350 m2/kg and 500 m2/kg to produce a blended cement capable of subsequent admixing with class C fly ash to produce synergistic effects. Specifically, the addition of class C fly ash to the blended cement containing interground volcanic ash, portland cement clinker, and calcium sulfate is capable of producing an ultimate blended cement exhibiting improved sulfate resistance, improved workability, reduced permeability with regard to chlorides and sulfates, improved resistance to ASR and elimination of delayed ettringite formation. | ||||||
88 | Cement-based compositions | US290057 | 1999-04-12 | US6027561A | 2000-02-22 | Karen Ann Gruber; John Hen |
In one embodiment, the present invention relates to a cement-based composition containing at least one cementitious material and at least one highly reactive pozzolan, wherein the highly reactive pozzolan comprises spray-dried metakaolin. In another embodiment, the present invention relates to a cement-based composition containing at least one cementitious material and at least one highly reactive pozzolan, wherein the highly reactive pozzolan is characterized as comprised of agglomerated beads of microparticles, the agglomerated beads having a median diameter of at least about 10 microns and the microparticles having a median diameter of about 5 microns or less. | ||||||
89 | Process for producing a binder for slurry, mortar, and concrete | US154879 | 1980-05-30 | US4306912A | 1981-12-22 | Bengt Forss |
A process for producing a binder (cement) to be used in slurry, mortar, or concrete having a low water-to-cement ratio. As raw-material for the binder is used at least 50% by weight of a hydraulic material, such as slag, technical pozzolanas and/or natural pozzolanas. The hydraulic material is ground to a specific surface of at least 400 m.sup.2 /kg. To the raw-material is added 0.1 to 5% by weight of a plasticizing material, such as a sulphonated polyelectrolyte. To the raw-material are also added in total 0.5 to 8% by weight of sodium carbonate and/or sodium hydroxide. Added in small amounts, the sodium carbonate and the sodium hydroxide, separately or in combination, considerably shorten the hardening time of the concrete, yield excellent strengths, and make it possible to use cheap raw-materials. | ||||||
90 | Production of hydraulic cement | US56367931 | 1931-09-18 | US2004463A | 1935-06-11 | OTLEY CASE GERALD |
91 | Manufacture of cement mixtures | US40541720 | 1920-08-23 | US1444309A | 1923-02-06 | FABIO FERRARI |
92 | VERFAHREN ZUR HERSTELLUNG EINES ZEMENTKLINKERSUBSTITUTS, DAS VORRANGIG AUS KALZINIERTEM TON BESTEHT | EP16788054.1 | 2016-10-21 | EP3368492A1 | 2018-09-05 | ENDERS, Michael; ROHLOFF, Kathrin |
The invention relates to a method for producing a cement clinker substitute which is made primarily from calcined clay, wherein at least two different clay raw materials are provided, from which a clay mixture is produced which is subsequently calcined to form the cement clinker substitute. | ||||||
93 | KLINKERERSATZMATERIAL AUS ALUMINIUMSILIKAT UND DOLOMIT | EP16171112.2 | 2016-05-24 | EP3248952A1 | 2017-11-29 | BULLERJAHN, Frank; ZAJAC, Maciej; NIED, Dominik |
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung eines Klinkerersatzmaterials umfassend die Schritte: |
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94 | Method of morphological design of pozzolanes to control the technical characteristics of the cements to which they are added | EP04385003.1 | 2004-08-20 | EP1700833A3 | 2006-10-11 | The designation of the inventor has not yet been filed |
The object of this Patent is a "Morphological method of design of puzolanes to control the technical characteristics of the cements to which they are added", whose use is explicit in the statement of the invention itself. It comprises the following operations : |
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95 | IMPROVED CEMENT-BASED COMPOSITIONS | EP00915823 | 2000-02-22 | EP1183217A4 | 2005-08-10 | GRUBER KAREN ANN; HEN JOHN |
In one embodiment, the present invention relates to a cement-based composition containing at least one cementitious material and at least one highly reactive pozzolan, wherein the highly reactive pozzolan comprises spray-dried metakaolin. In another embodiment, the present invention relates to a cement-based composition containing at least one cementitious material and at least one highly reactive pozzolan, wherein the highly reactive pozzolan is characterized as comprised of agglomerated beads of microparticles, the agglomerated beads having a median diameter of at least about 10 microns and the microparticles having a median diameter of about 5 microns or less. | ||||||
96 | METHOD OF IMPROVING MATERIAL COMPRISING A POZZOLANIC COMPONENT | EP03744565.7 | 2003-03-19 | EP1487753A2 | 2004-12-22 | BIERMANN, Joseph, Jan, Peter; VOOGT, Nicolaas |
The invention relates to a method of improving a material comprising a pozzolanic component. According to the invention the material is treated with an aqueous liquid resulting in treated, calcium-depleted material and a calcium-enriched aqueous solution, which are subsequently separated. This provides a material having an increased pozzolanity and/or increased specific surface area. | ||||||
97 | WHITE POZZOLAN COMPOSITION AND BLENDED CEMENTS CONTAINING SAME | EP02726587.5 | 2002-03-04 | EP1373159A1 | 2004-01-02 | HEMMINGS, Raymond, T.; NELSON, Robert, D.; GRAVES, Philip, L.; CORNELIUS, Bruce, J. |
A white pozzolan derived from by-products of manufacturing vitreous low alkali, low iron glass fibers, and to the method for producing the white pozzollan. The invention relates as well to cement compositions based on the white pozzolan, such as white and pigmented blended pozzolan cements of high durability for use in applications such as white or colored architectural concrete, building materials, and manufactured cementitious products. The white pozzolan also functions as a high performance pozzolan with grey cement. | ||||||
98 | WHITE POZZOLAN COMPOSITION | EP02726587.5 | 2002-03-04 | EP1373159B1 | 2018-10-03 | HEMMINGS, Raymond, T.; NELSON, Robert, D.; GRAVES, Philip, L.; CORNELIUS, Bruce, J. |
A white pozzolan derived from by-products of manufacturing vitreous low alkali, low iron glass fibers, and to the method for producing the white pozzollan. The invention relates as well to cement compositions based on the white pozzolan, such as white and pigmented blended pozzolan cements of high durability for use in applications such as white or colored architectural concrete, building materials, and manufactured cementitious products. The white pozzolan also functions as a high performance pozzolan with grey cement. | ||||||
99 | KLINKERERSATZMATERIAL AUS ALUMINIUMSILIKAT UND DOLOMIT | EP15823592.9 | 2015-11-17 | EP3224219A1 | 2017-10-04 | BULLERJAHN, Frank; ZAJAC, Maciej; NIED, Dominik |
The invention relates to a method for producing a clinker substitute material comprising the steps: providing a starting material containing dolomite and aluminium silicate, converting the starting material to the clinker substitute material by burning the starting material in the temperature range from >800 to 1100 °C or by burning the starting material in the temperature range from 725 to 950 °C in the presence of a mineraliser, and cooling the clinker substitute material. The invention further relates to a binder comprising cement and to the ground clinker substitute material. | ||||||
100 | Method of morphological design of pozzolanes to control the technical characteristics of the cements to which they are added | EP04385003.1 | 2004-08-20 | EP1700833A2 | 2006-09-13 | The designation of the inventor has not yet been filed |
The object of this Patent is a "Morphological method of design of puzolanes to control the technical characteristics of the cements to which they are added", whose use is explicit in the statement of the invention itself. It comprises the following operations :
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