序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
101 경화 세멘트 제품의 개량방법 KR1019970709131 1996-06-03 KR100252841B1 2000-04-15 조운즈로저에이치.주니어
적어도 세멘트와 물을 혼합하여 혼합물을 형성한후, 상기 혼합물을 경화한 다음 상기 경화된 혼합물을 초임계 이산화탄소에 노출시키는 단계들로 된 것이 특징인 경화세멘트제품의 경화방법과, 상기 초임계 이산화탄소에 세멘트 제품내의 기공들과 모세관들을 통해 주입될 수 있는 형의 물질을 첨가하여 초임계 혼합물을 형성하여, 상기 세멘트 제품을 상기 혼합물에 노출시켜 세멘트 제품의 pH를 저하시키고 또한 세멘트 제품내에 상기 물질을 주입시켜서, 상기 세멘트 제품으로부터 초임계 이산화탄소의 적어도 일부를 철수시키고, 상기 세멘트 제품내에 상기 물질의 적어도 일부를 남겨서 세멘트 제품의 화학적 및 물리적 특성중 적어도 하나를 변경시키는 단계들로 된 것이 특징인 경화세멘트제품내의 알칼리비허용물질의 보호 및 경화후 세멘트제� ��의 특성 변경방법이 제공된다.
102 A METHOD FOR THE TREATMENT OF METALS EP14844259 2014-09-12 EP3043874A4 2017-05-17 RISSANEN VESA
A method for precipitating metal waste is characterized in that the waste which contains one or more dissolved metal salts, is mixed with a boron compound, and the pH is adjusted to a value at which precipitation takes place in the presence of precipitation nuclei necessary for the formation of metal borates.
103 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.
104 PROCEDE ET INSTALLATION DE TRAITEMENT DE DESHYDROXYLATION DE SILICATE D'ALUMINIUM EP02703663.1 2002-02-06 EP1362007A2 2003-11-19 CADORET, Ga[l
The invention relates to a method and installation for the dehydroxylation treatment of aluminium silicate, in which the particles surrounding the aluminium silicate are subjected to a temperature of at least 500 °C. The particles are in the form of a dry powder and the dry powder (26) may be optionally transported in a gas stream (30) at a temperature of between 600 and 850 °C for a sufficient amount of time until the desired degree of dehydroxylation is achieved. The powder can be obtained from a hydrated base paste by reducing the base paste into fragments (23) and by deagglomerating the base paste fragments mechanically (in 3) in the presence of a hot gas (24) at a temperature of between 500 °C and 800 °C in order to form the dry powder (26).
105 MIXTURE OF SILICA SOLS EP01920061.7 2001-04-06 EP1292536A1 2003-03-19 GREENWOOD, Peter; BERGQVIST, Hans; SKARP, Ulf
The invention concerns a silica sol mixture comprising a first silica sol having a broad particle size distribution, the relative standard deviation being at least about 30% by numbers, and a second silica sol having a narrow particle size distribution having a relative standard deviation lower than about 15% by numbers. The invention also concerns a method for preparing a silica sol mixture and use thereof. The invention further concerns a concrete composition comprising a silica sol mixture and a method for preparing such composition.
106 CEMENT TREATED WITH HIGH-PRESSURE CO 2? EP96917166 1996-06-03 EP0840713A4 1999-10-27 JONES ROGER H JR
Cured cement matrices are exposed to high pressure dense-phase orsupercritical CO2 which enters the matrix through passages therein to neutralize the natural alkalinity of the cement so that alkali-intolerant materials can be incorporated in the cement. The CO2 converts calcium hydroxide in the cement to calcium carbonate and water, and the high pressure of the dense-phase or supercritical CO2 forms rounded, closely packed and aligned crystals with few or no visible pores or capillaries to enhance the homogeneity and strength of the cured cement and its bonding with, for example, uncoated reinforcing glass fibers. The supercritical CO2 can be used to transport other organic or inorganic materials, including pulverized metal, in solution or suspension into the interior of the cement matrix to alter its chemical and/or physicalcharacteristics.
107 Dämmstoff zur Wärme- und Trittschalldämmung eines Bodens EP97890140.3 1997-07-18 EP0819662A1 1998-01-21 Wimberger, Franz

Es wird ein Dämmstoff zur Wärme- und Trittschalldämmung eines Bodens bewschrieben, welcher Dämmstoff aus einer aushärtbaren, mit Wasser angemachten Mischung aus einem geschlossenzelligen Schaumstoffgranulat abgestufter Körnung, insbesondere Polystyrolgranulat, und einem zementhaltigen Bindemittel besteht. Um eine vorteilhafte Wärme- und Trittschalldämmung zu erhalten, wird vorgeschlagen, daß das Bindemittel neben dem Zementanteil, der auf 100 kg je m3 der angemachten Mischung nach oben begrenzt ist, einen wenigstens 10 Gew.% des Zementanteiles ausmachenden Anteil an amorpher Kieselsäure enthält und daß der Anteil der Granulatkörner mit einem mittleren Korndurchmesser zwischen 2,0 und 6,0 mm am Schaumstoffgranulat zwischen 60 und 85 % liegt.

108 ZEMENT-MATRIX UND VERFAHREN ZUR HERSTELLUNG EP90914728.2 1990-09-26 EP0494920B1 1994-12-07 PFEIFER, Manfred
The invention concerns a cement matrix and its advantageous production, in particular for glass-fibre reinforced cement or concrete, consisting of a standard or special cement and additives in a solid or liquid form for binding the calcium hydroxide which forms during the hydration process. A particularly advantageous additive is reactive silicon dioxide which is recovered from the flue gases during the production of silicon or ferro-silicon, whereby the silicon dioxide is first reduced and the reduction product is then oxidized in air. The total quantity of additives must be at least equivalent to the required quantity needed, in order to bind the total calcium hydroxide produced during hydration or cause a reaction. The other additives, apart from reactive silicon dioxide, are metakaolin, diatomaceous earth, pozzolana, blast furnace slag and fly ash or a combination thereof.
109 ZEMENT-MATRIX UND VERFAHREN ZUR HERSTELLUNG EP90914728.0 1990-09-26 EP0494920A1 1992-07-22 PFEIFER, Manfred
L'invention concerne une matrice de ciment et sa fabrication appropriée, particulièrement pour du ciment ou du béton renforcés par fibres de verre, consistant en un ciment standard ou spécial et additifs sous forme solide ou liquide pour lier l'hydroxyde de calcium se formant par processus d'hydratation. Un additif particulièrement avantageux est le dioxyde de silicium réactif, récupéré sur les fumées gazeuses lors de la fabrication de silicium ou de ferro-silicium, où le dioxyde de silicium est d'abord réduit et le produit de réduction est ensuite oxydé à l'air. La quantité totale d'additifs doit être au moins équivalente à la quantité nécessaire et indispensable pour lier l'ensemble de l'hydroxyde de calcium formé par hydratation ou provoquer une réaction. Les autres additifs en-dehors du dioxyde de silicium réactif sont le métakaolin, la terre à diatomées, la pouzzolane, le laitier du haut-fourneau et la suie ou leur combinaison.
110 Procédé et composition pour accélerer la prise des ciments et supprimer les efflorescences EP89400235.1 1989-01-27 EP0328431A1 1989-08-16 Mathieu, Alain

La présente invention a pour objet un procédé et une composition pour accélérer la prise du ciment Portland, rac­courcir la phase de migration des ions calcium dans la phase liquide et complexer la chaux réactive du ciment Portland.

Elle est caractérisée en ce que ladite composition est essentiellement formée des constituants suivants: un matériau à base d'aluminates de calcium et de l'alumine trihydratée.

111 Improvements in hydraulic cements EP82300141.7 1982-01-12 EP0056700A2 1982-07-28 Drake, Cyril Francis

Alkaline residues in a hydraulic cement are neutralised by incorporating in the cement an acid material having a dissolution rate sufficiently slow that the setting process is not adversely affected. Typically the neutralising agent comprises an alkali metal/phosphorus pentoxide glass which is incorporated in the cement prior to or after mixing with water. The pH of the glass is adjusted by controlling its phosphorus pentoxide content, and the dissolution rate is determined by including e.g. calcium oxide and/or alumina to the glass composition.

112 Verfahren zur Herstellung von Mineralfaserbeton sowie Mineralfasern für denselben EP80101062.0 1980-03-03 EP0016369A1 1980-10-01 Ihlefeld, Karl-Helmut

Bei diesem Mineralfaserbeton handelt es sich um einen Beton mitPortlanzementalsBindemittel und einerArmierung aus Mineralfasern, wobei einerseits die Mineralfasern aus einem Puzzolan bestehen, das bei Reaktion mit dem freien Kalk des Portlandzementes Calciumaluminathydrat bildet, und andererseits dem Beton kalkbindende Stoffe zugesetzt werden, die diese Reaktion in kontrollierter Weise ablaufen lassen.

Gleichzeitig findet die Reaktion bei der Bildung des Calciumaluminathydrats nur auf der Oberfläche der Faser statt, sodaß langfristig die Faser bei ausreichend eingesteitter Dicke als funktionsfähige Betonarmierung erhalten bleibt.

Geeignete Puzzolane, aus denen solche Fasern bestehen können, haben einen Erweichungspunktvon über 1000°C. Sie sind daher zur Armierung feuerbeständiger Bauteile geeignet.

Die Faserarmierung im Beton kann in Form von Einmischen von losen Faserabschmtten, als eingelegtes Faservlies und als eingelegtes Gewebe erfolgen.

113 METHOD OF IMPROVING MATERIAL COMPRISING A POZZOLANIC COMPONENT PCT/NL0300208 2003-03-19 WO03078348A2 2003-09-25 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.
114 DIRECT SEQUESTRATION OF CHLORIDE IONS PCT/US2006001479 2006-01-18 WO2006098805A2 2006-09-21 BROWN PAUL W
The present invention provides methods and compounds for the direct sequestration of chloride ions without requiring the addition of a source of anion such as nitrite or nitrate. A direct sequestration additive is introduced to fresh concrete or hardened concrete where the additive reacts with incoming chloride ions to form a low solubility, chloride-containing compound which captures or sequesters chloride ions. In a preferred embodiment, the chloride-containing compound comprises 3CaO Fe(2-x )AlxO3 CaCl2 nH2O , where x ranges from about (0) to (1.4), and n ranges from about (8) to (24). The chloride ions may be provided in the form of deicing salt or sea water. Because chloride-containing compounds such as 3CaO Fe(2-x)AlxO3 CaCl2 nH2O are formed directly without requiring the addition of a source of anion (e.g. nitrite or nitrate), the process is referred to as "direct sequestration".
115 IN SITU FORMATION OF CHLORIDE SEQUESTERING COMPOUNDS PCT/US2006002455 2006-01-25 WO2006098809A3 2007-12-13 BROWN PAUL W
The present invention provides methods and compounds for the in situ formation in concrete of chloride sequestering compounds that resist corrosion of metals contained within the concrete. These chloride sequestering compounds may include, but are not limited to, compounds having the formula [insert formula here] and [insert formula here], where x ranges from about 0 to 1.4 and n ranges from about 8 to 24. In one embodiment, at least one Fe-containing additive is introduced into cement, and at least one anion-containing additive is introduced into mixing water. When the cement and mixing water are combined to create fresh concrete, the additives react to form chloride sequestering compounds. In another embodiment, the additives are introduced or mixed directly into fresh concrete that has already been formed, where they react to create chloride-sequestering compounds. "In situ" formation refers to the creation of a chloride sequestering compound within concrete.
116 METHOD AND INSTALLATION FOR THE DEHYDROXYLATION TREATMENT OF ALUMINIUM SILICATE PCT/FR0200456 2002-02-06 WO02066376A2 2002-08-29 CADORET GAEL
The invention relates to a method and installation for the dehydroxylation treatment of aluminium silicate, in which the particles surrounding the aluminium silicate are subjected to a temperature of at least 500 DEG C. The particles are in the form of a dry powder and the dry powder (26) may be optionally transported in a gas stream (30) at a temperature of between 600 and 850 DEG C for a sufficient amount of time until the desired degree of dehydroxylation is achieved. The powder can be obtained from a hydrated base paste by reducing the base paste into fragments (23) and by deagglomerating the base paste fragments mechanically (in 3) in the presence of a hot gas (24) at a temperature of between 500 DEG C and 800 DEG C in order to form the dry powder (26).
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