A method for sequestering carbon dioxide includes providing a starting material having calcium ions, sulfate and/or sulfite ions, and alkali metal ions with a molar ratio Σ Alk:Σ SO3>2.00, reacting the starting material with carbon dioxide at a pressure in the range from ambient up to 3.5 bar overpressure and/or a temperature in the range from 10 to 145° C. to obtain a carbonated product comprising calcium carbonate and alkali sulfate. The obtained product is used as a set regulator or accelerator for cement and/or as a minor or main cement component.
Method and device for the combined manufacturing of cement clinker (c) and calcined clay (d), wherein the cement clinker (c) is produced in a cement manufacturing line (10) by the steps: providing a cement raw meal (a), preheating and precalcining the cement raw meal (c) in a preheater and calciner section (11), sintering the precalcined cement raw meal in a rotary kiln (15) to provide the cement clinker (c) and cooling the cement clinker (c) with a counter current air stream in a clinker cooler (17) providing hot air, and wherein the calcined clay (d) is produced in a clay manufacturing line (20) by the steps: providing a clay raw material (b), preheating the clay raw material (b) in a heat exchange section (21), and calcining the preheated clay raw material suspended in gas in a flash calciner (23) to provide the calcined clay (d), wherein the hot air from the cooler (17) is divided into at least two streams, a first combustion air stream used in sintering the cement raw meal and a second combustion air stream used in calcining the clay raw material, and wherein exhaust gas from calcining clay raw material is fed into the calcination (13) of the preheated cement raw meal.
The invention relates to a method for producing hydraulic building materials, in which residual water is at least partially used as feed water, wherein the density of the inflowing residual water is continuously measured and when a selected limit value of the density is exceeded, so much fresh water or residual water of lower density is supplied that the density is below the limit value, wherein a quantity of at least one solid component of the hydraulic building material is reduced as a function of a total quantity of solids in the residual water, which is calculated based on the density.
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
C04B 40/06 - Inhibition de la prise, p. ex. pour mortiers du type à action différée contenant de l'eau dans des récipients frangibles
Method for manufacturing supplementary cementitious material comprising the steps: - providing a starting material containing clay and fly ash or a mixture of fly ash and bottom ash, wherein at least 70 wt.-% of the starting material are clay, fly ash and bottom ash, - homogenization of the starting material - thermal treatment of the starting material at a temperature from 700 to 1000 °C to provide a heat treated material, - cooling the heat treated material to provide a cooled product, and - grinding the cooled product to provide the supplementary cementitious material, and use of the supplementary cementitious material obtainable through the method for manufacturing hydraulic building materials, as well as supplementary cementitious material obtained.
C04B 7/26 - Ciments produits à partir de schistes bitumineux, de déchets ou de résidus autres que des scories à partir de matières premières contenant des cendres folles
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
Method for manufacturing a supplementary cementitious material with improved reactivity from waste concrete, wherein a starting material comprising waste concrete is provided, subjected to carbonation to provide a carbonated product having a carbonation degree of at least 50 %, and the carbonated product is heat treated at a temperature ranging from 120 to 350 °C until constant mass to provide the supplementary cementitious material with improved reactivity, the obtained supplementary cementitious material, a method using it as well as its use to manufacture composite cements and composite cements comprising it.
Method for producing a pozzolanic product by hydrothermal treatment of a feedstock comprising silicate, aluminate, and/or aluminosilicate materials, and a source of calcium ions, wherein the feedstock has a molar ratio of Ca:(Si+Al) from 0.4 to 1.2 and a maximum content of hydrated cement paste of 10 wt.-%, to provide a hydrate product, and subsequent carbonation of the hydrate product to provide a pozzolanic product comprising calcium carbonate and silica gel, alumina gel and/or silica-alumina gel; pozzolanic product obtainable by the method; use of the pozzolanic product as supplementary cementitious material; method for manufacturing a composite cement and a composite cement comprising the pozzolanic product and an hydraulic cement.
Method for separating hydrated concrete paste from aggregate comprising the steps of providing a feedstock comprising waste concrete with a D10 ≥ 0.1 mm and a D90 ≤ 100 mm, passing the feedstock, a water containing liquid and carbon dioxide into a fragmentation vessel, where the wet feedstock is subjected to electric-pulse fragmentation, withdrawing fragmented solid material from the fragmentation vessel, separating the fragmented solid material from admixed liquid phase, separating the fragmented solid material into a fine fraction with a maximum particle size of 250 µm to provide the carbonated recycled concrete paste and a coarse fraction, recycling the coarse fraction into the fragmentation vessel and/or discharging the coarse fraction as clean aggregate, use of the recycled concrete paste obtained thereby as supplementary cementitious material or filler.
33 > 2.00, reacting the starting material with carbon dioxide at a pressure in the range from ambient up to 3.5 bar overpressure and/or a temperature in the range from 10 to 145 °C to obtain a carbonated product comprising calcium carbonate and alkali sulfate as well as use of the obtained product as set regulator or accelerator for cement and/or as minor or main cement component.
Composition comprising a polyphosphate, an amine and an inorganic sulfate compound for enhancing the workability and/or the strength development of hydraulic binders comprising a cement and a high water demand supplementary cementitious material and/or a high water demand filler.
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
Method for producing a supplementary cementitious material from concrete waste and similar materials comprising the steps of i) providing a starting material comprising hydrated cement and aggregate comprising silicate and/or alumino-silicate, ii) hydrothermal treatment of the starting material provided in step i) to obtain a hydrothermally activated material, and iii) carbonation of the hydrothermally activated material of step ii) to provide the supplementary cementitious material, as well as supplementary cementitious material obtainable by the method, hydraulic binder comprising the supplementary cementitious material and use of the supplementary cementitious material and of the hydraulic binder for making hydraulic building materials.
Method for converting a starting material containing at least 40 wt.-% of calcium silicon (hydr)oxide phases and calcium aluminium (hydr)oxide phases into an SiO2 rich SCM and a calcium carbonate additive comprising the steps - providing the starting material with a D90 of ≤ 1 mm - mixing the starting material with water or adjusting the water content to provide a starting material slurry having a solid:liquid weight ratio from 2:1 to 1:100 - passing the starting material slurry together with carbon dioxide into a gravity separation reactor - subjecting the starting material slurry and carbon dioxide to centrifugal motion inside the reactor and - removing a heavy slurry of higher density particles comprising the calcium carbonate additive formed by reaction of carbon dioxide with calcium ions dissolved or leached from the starting material from a first outlet of the reactor, removing a light slurry of lower density particles comprising the undissolved SiO2 rich remains of the starting material from a second outlet of the reactor, and removing liquid at a third outlet of the reactor, and gravity separation reactor comprising an inlet (11) for a slurry (a) and an inlet (12) for carbon dioxide (b) or an inlet (11) for a slurry (c) premixed with carbon dioxide, a reaction chamber (13) adapted to subject the introduced slurry (a, c) to centrifugal motion, a first outlet (14) for a heavy slurry (d) of higher density particles, a second outlet (15) for a light slurry (e) of lower density particles and a third outlet (16) for liquid (f).
B03B 5/32 - Lavage de matériaux en grains, en poudre ou en grumeauxSéparation par voie humide en utilisant des plongeants et flottants avec emploi de liquides denses ou de suspensions en se servant de la force centrifuge
B04B 1/10 - Centrifugeurs à tambours rotatifs à parois pleines pour la séparation de mélanges essentiellement liquides contenant ou non des particules solides à orifices d'évacuation dans le plan du plus grand diamètre du tambour
Method for manufacturing a composite cement comprising a cement and calcined clay, comprising the steps of providing the cement, providing calcined clay by grinding a material comprising clay compounds and at least one of quartz and/or feldspar, separating the clay compounds from quartz and/or feldspar by classification and calcination of the clay compounds to provide the calcined clay, and mixing the cement with the calcined clay to provide the composite cement.
The present invention relates to a supplementary cementitious material, a method for producing the supplementary cementitious material, the use of the supplementary cementitious material, a binder comprising the supplementary cementitious material, a method for the preparation of the binder and use of the binder to make hydraulic building materials like concrete.
233323333) for a final carbonation step, and - storing the part for 0.5 hours to 28 days for further hydration of not-yet carbonated, not-yet hydrated cement to provide the concrete part. and concrete parts obtainable with the method.
Building materials, not of metal; cement; dry cement
premixes; dry concrete premixes; concrete; ready-mixed
concrete; mortar; transportable structures and building
components, not of metal.
16.
Friction materials with low storage time for brake pads based on binder compositions and related brake pads
A friction material with reduced storage time is described, comprising a binder composition based on a hydraulic binder and its use in brake pads and industrial applications.
C04B 22/14 - Acides ou leurs sels comportant du soufre dans la partie anionique, p. ex. sulfures
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
19 - Matériaux de construction non métalliques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Chemical products and chemical preparations for use in
construction; chemical admixtures; chemical products being
additives for cement, concrete and other cementitious
building materials. Building and construction materials and elements, not of
metal; concrete; cement; aggregate materials for use in
concrete; aggregate; asphalt. Services of a chemical laboratory; technological consultancy
relating to building materials, construction materials and
construction services; services of a chemist; services of an
engineer.
18.
INTEGRATED PROCESS FOR MANUFACTURING HYDRAULICALLY HARDENING BUILDING MATERIAL
Method for manufacturing hydraulically hardening building materials, comprising: - providing concrete demolition waste with a maximum particle size of up to 150 mm as a starting material, - mixing the starting material with water to form a feedstock slurry, - introducing carbon dioxide or a precursor thereof into the feedstock slurry to form carbonated concrete fines in an amount from 1 to 100 wt.-% of the hardened binder contained in the starting material and to detach the concrete fines from the aggregate contained in the starting material to form a product slurry, and - mixing the product slurry with a cement forming the building material, and use of the obtainable building material for manufacturing building structures as well as method for manufacturing a supplementary cementitious material slurry comprising the steps: - providing concrete demolition waste with a maximum particle size of up to 150 mm as starting material, - mixing the starting material with water to form a feedstock slurry, - introducing carbon dioxide or a precursor thereof into the feedstock slurry transforming from 1 to 100 wt.-% of the hardened binder contained in the starting material to carbonated concrete fines with a reactivity index of at least 1.1 times to form the supplementary cementitious material slurry.
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
902x2xx at a relative humidity of 50 to 100 Vol.-% and a temperature from 40 to 130 °C in an amount of dry waste material ranging from 5 to 30 kg/m32xx.
22, circulating the ground and partially carbonated concrete fines in a fluidized bed reactor in contact with the carbonating atmosphere, and withdrawing decarbonated gas and carbonated concrete fines.
A cementitious mixture for a 3D printer, with improved performance, is described, and its relative use, more specifically for the production of finished products having a complex geometry using a 3D printing apparatus.
B28B 1/00 - Fabrication d'objets façonnés à partir du matériau
B29C 64/106 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux
B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
22.
A CEMENTITIOUS COMPOSITION WITH PHOTOCATALYTIC ACTIVITY
The invention relates to a cementitious composition comprising: - a hydraulic binder; - a photocatalyst comprising an activated carbon nitride, preferably consisting of at least an alkaline metal salt of poly(heptazine imide); - an optional aggregate and to a cement product obtainable therefrom. The invention also relates to methods of manufacturing photocatalytic cementitious compositions and the obtained product as well as to a device for carrying out the method as well as to a method for photocatalytically decomposing an air pollutant, preferably the nitrogen oxides (NOx) pollutants, comprising the step of contacting the air pollutant with a cement product according to the invention.
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
A friction material with reduced storage time is described, comprising a binder composition based on a hydraulic binder and its use in brake pads and industrial applications.
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
09 - Appareils et instruments scientifiques et électriques
19 - Matériaux de construction non métalliques
35 - Publicité; Affaires commerciales
38 - Services de télécommunications
39 - Services de transport, emballage et entreposage; organisation de voyages
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Chemical substances, chemical compounds, chemical materials,
chemical products and chemical preparations for use in
construction; chemical additives; chemical additives for use
with concrete; chemical products being additives for cement;
adhesive cements; cement set accelerators; compositions for
setting cement; dispersants for use in cement; chemical
compositions for reinforcing cement; polymers for use in the
preparation of cements; chemical compositions for hardening
cement; additives for use in mixing cement; compositions for
preserving cement [except paints or oils];
cement-waterproofing chemicals, except paints. Computer software for use in automating and managing
business processes; software for creating, facilitating, and
managing remote access to and communication with local area
networks and global networks. Building and construction materials and elements, not of
metal; concrete; cement; aggregate materials for use in
concrete; aggregate. Administrative processing of purchase orders; business
administration in the field of transport and delivery
services; compilation of information into computer
databases; updating and maintenance of data in computer
databases; compilation of business statistics and commercial
information; providing information concerning commercial
sales. Electronic order transmission; transmission of data,
messages and information; providing access to data on
communications networks; providing on-line access to data;
computer communications services for the transmission of
information; providing access to information on the
Internet; providing access to information on computer
networks; providing access to data and information on the
Internet; providing access to information via data networks;
providing access to electronic information, communication
and transaction platforms on the Internet. Storage, transportation and delivery of goods; providing
on-line information in the field of transport, packaging and
storage of goods; provision of information about transport
matters, via electronic means; providing information about
transport services; providing information relating to the
transportation and delivery of goods; providing information
relating to the transportation and storage of goods. Providing search engines for obtaining data via
communications networks; electronic storage services for
archiving electronic data.
25.
CEMENTITIOUS MIXTURE FOR A 3D PRINTER AND RELATIVE USE IN SAID PRINTER
A cementitious mixture for a 3D printer and its relative use are described, more specifically for the production of finished products having a complex geometry using a 3D printing apparatus.
B28B 1/00 - Fabrication d'objets façonnés à partir du matériau
B33Y 30/00 - Appareils pour la fabrication additiveLeurs parties constitutives ou accessoires à cet effet
B29C 64/00 - Fabrication additive, c.-à-d. fabrication d’objets en trois dimensions [3D] par dépôt additif, agglomération additive ou stratification additive, p. ex. par impression en 3D, stéréolithographie ou frittage laser sélectif
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
09 - Appareils et instruments scientifiques et électriques
19 - Matériaux de construction non métalliques
35 - Publicité; Affaires commerciales
38 - Services de télécommunications
39 - Services de transport, emballage et entreposage; organisation de voyages
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
(1) Chemical substances, chemical compounds, chemical materials, chemical products and chemical preparations for use in construction, namely chemicals for use in cement and concrete for the construction of buildings, roads, railway lines, bridges, tunnels, dykes, pipelines; chemical additives for use in the manufacture of building parts and of construction materials; chemical additives for use with concrete; chemical products being additives for cement; adhesive cements; cement set accelerators; com-positions for setting cement; dispersants for use in cement; chemical compositions for reinforcing cement; unprocessed polymers for use in the preparation of cements; chemical compositions for hardening cement; additives for use in mixing cement; compositions for preserving cement in the nature of cement preservatives [except paints or oils]; cement-waterproofing chemicals, except paints.
(2) Computer software for use in automating and managing business processes in the area of manufacturing, selling and using construction materials;
(3) Building and construction materials and elements, not of metal, namely ready mix concrete in the nature of concrete mix, dry mixes for making mortar or concrete in the nature of mortar mix and concrete mix, precast building parts of concrete or of reinforced concrete in the nature of walls, roofing elements, floors and ceilings, stairs, ceiling elements, slabs, panels, paving, ducts, pipes, pavement, poles, supplementary cementitious materials being granulated blast furnace slag in the nature of building materials, fly ash in the nature of building materials, limestone, pozzolana in the nature of building materials, burnt oil shale in the nature of building materials or combinations of these, filler material for cement and concrete being ground minerals, mineral fibers being filler or reinforcement for cement and concrete; concrete; cement; aggregate materials for use in concrete namely cement aggregates; aggregate materials composed of sand, gravel, recycled cement aggregate, crushed or ground stone, crushed or ground slag, and combinations of these for cement and concrete building materials. (1) Administrative processing of purchase orders; business administration in the field of transport and delivery services; compilation of business statistics and commercial information in the area of manufacturing, selling and using construction materials; providing information concerning commercial sales of construction materials.
(2) Electronic order transmission for construction materials; transmission of data, messages and information in the area of manufacturing, selling and using construction materials; providing access to data on communications networks in the area of manufacturing, selling and using construction materials; providing on-line access to data in the area of manufacturing, selling and using construction materials; computer communications services for the transmission of information in the area of manufacturing, selling and using construction materials; providing access to information on the Internet in the area of manufacturing, selling and using construction materials; providing access to information on computer networks in the area of manufacturing, selling and using construction materials; providing access to data and information on the Internet in the area of manufacturing, selling and using construction materials; providing access to information via data networks in the area of manufacturing, selling and using construction materials; providing access to electronic information, communication and transaction platforms on the Internet in the area of manufacturing, selling and using construction materials.
(3) Storage, transportation and delivery of construction materials; providing on-line information in the field of transport, packaging and storage of goods; provision of information about the transportation matters of goods by air, rail, ship, and truck, via electronic means; providing information about transport services in the area of manufacturing, selling and using construction materials; providing information to others relating to the transportation and delivery of goods by air, rail, ship, and truck; Providing information relating to the transportation of goods by air, rail, ship and truck for others and to the storage of goods for others.
(4) Electronic storage services for archiving electronic data in the area of manufacturing, selling and using construction materials.
27.
METHOD FOR SIMULTANEOUS EXHAUST GAS CLEANING AND MANUFACTURING OF SUPPLEMENTARY CEMENTITIOUS MATERIAL
The present invention provides a composite building element, preferably a composite deck (1), comprising a profiled and perforated aluminum sheet (2) combined with a concrete (3) based on a carbonation hardening binder, wherein the perforations make up at least 20% of the surface of the aluminum sheet, as well as a method of manufacturing a composite building element, preferably a composite deck (1), comprising the steps of providing a profiled and perforated aluminum sheet (2), wherein the perforations make up at least 20 % of the surface of the aluminum sheet, providing a concrete paste from a carbonation hardening binder, pouring the concrete paste onto the aluminum sheet (2) and hardening the concrete (3) by subjecting the paste to carbon dioxide.
E04B 5/04 - Structures portantes de planchers, formées essentiellement d'éléments préfabriqués avec poutres en béton ou constituées d'autres matériaux semblables à la pierre, p. ex. d'amiante-ciment
E04B 5/40 - Structures de planchers entièrement coulées sur place avec ou sans éléments de coffrage ou armatures avec des éléments de coffrage faisant partie du plancher avec des coffrages en forme de dalles servant en même temps d'armaturesDalles de coffrage avec armatures se prolongeant latéralement à l'extérieur de l'élément avec des plaques-coffrages métalliques
B28B 19/00 - Machines ou méthodes pour appliquer le matériau sur des surfaces pour former une couche permanente sur ces dernières
E04C 2/32 - Éléments de construction de relativement faible épaisseur pour la construction de parties de bâtiments, p. ex. matériaux en feuilles, dalles ou panneaux caractérisés par la forme ou la structure formés d'un matériau ondulé ou cannelé analogue à des feuillesÉléments de construction de relativement faible épaisseur pour la construction de parties de bâtiments, p. ex. matériaux en feuilles, dalles ou panneaux caractérisés par la forme ou la structure composés de couches de ce genre avec ou sans couches d'un matériau plat en feuilles
E04C 2/28 - Éléments de construction de relativement faible épaisseur pour la construction de parties de bâtiments, p. ex. matériaux en feuilles, dalles ou panneaux caractérisés par des matériaux spécifiés composés de matériaux couverts par plusieurs des groupes , , ou de matériaux couverts par un de ces groupes avec un matériau non spécifié dans l'un de ces groupes combinaisons de matériaux entièrement couverts par les groupes et
29.
BUILDING ELEMENTS MADE FROM BINDERS HARDENING BY COMBINED HYDRATION AND CARBONATION
The present invention relates to a method of manufacturing building elements comprising the steps: providing a binder comprising at least 8 % by weight ternesite, at least 15 % by weight dicalcium silicate and at least 5 % by weight ye'elimite, each with respect to the total binder, as hydraulically reactive phases; mixing the binder with water to form a paste; casting the paste into a desired shape for the building element; reacting the paste hydraulically to form calcium- silicate-hydrates, calcium-aluminium-silicate-hydrates, portlandite, brucite, strätlingite, hydrotalcite-like phases and ettringite/AFm and capillary pores, and carbonation hardening to provide the building element and to building elements obtainable by the method.
C04B 7/345 - Ciments hydrauliques non prévus par l'un des groupes
C04B 28/18 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des mélanges du type chaux et silice
Method for manufacturing a binder comprising a hydratable material and a building element from the binder comprising the steps: - providing a starting material from one or more raw materials convertible by tempering at 600 to 1200 °C into the hydratable material, wherein the starting material has a Ca/Si molar ratio from 0.5 to 1.8 and contains no or up to 30 % by weight of other elements than Ca and Si with regard to the total mass calculated as oxides, - tempering the starting material at a temperature in the range from 600 to 1200 °C during a residence time from 1 minutes to 5 hours to provide the hydratable material containing not more than 10 % by weight monocalcium silicate and at least 15 % by weight hydratable phases in the form of lime and dicalcium silicate, wherein at least 50 % of the hydratable phases are dicalcium silicate, wherein the residence time and the tempering temperature are adapted to obtain the said hydratable material by converting not more than 80 % by weight of the starting material, - cooling the hydratable material to provide the binder comprising the hydratable material. For manufacturing the building element the further steps of - mixing the binder with water and optionally one or more of aggregate, additves, admixtures to obtain a binder paste - placing the binder paste - hydrating the binder paste until the amount of bound water is at least 1 g/100 g dry binder and - carbonating the binder paste until until the amount of additionally bound carbon dioxide is at least 150 % of the initially bound water mass and/or the strength exceeds 2 MPa while still keeping the bound water at least 50 % of the initially bound water.
C04B 7/345 - Ciments hydrauliques non prévus par l'un des groupes
C04B 28/18 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des mélanges du type chaux et silice
The present invention relates to a method for manufacturing a binder with high β belite content comprising the steps: a) providing a starting material by selecting one raw material having a Ca/Si molar ratio of 1.5 to 2.5 or by mixing two or more raw materials to obtain a starting material with the Ca/Si molar ratio of 1.5 to 2.5; b) hydrothermal treatment of the starting material produced in step a) in an autoclave at a temperature of 100 to 300°C and a retention time of 0.1 to 24h, wherein the water/solids ratio is from 0.1 to 100 to provide an intermediate product; c) annealing the intermediate product obtained in step b) in a flash calciner at 620 to 630°C, wherein the retention time is 1 - 30 seconds.
The invention relates to using a combination of an aminopolycarboxylic acid or salt thererof with a carboxylic acid having only carbon, hydrogen, and oxygen atoms in its molecule or salt thererof as retarder for calcium sulfoaluminate belite cements; by a method of retarding the setting of calcium sulfoaluminate belite binder by adding a combination of an aminopolycarboxylic acid or salt thererof with a carboxylic acid having only carbon, hydrogen, and oxygen atoms in its molecule or salt thererof to the cement and to a calcium sulfoaluminate belite binder with controlled setting comprising at least 70 % by weight calcium sulfoaluminate belite cement obtained from a calcium sulfoaluminate belite clinker containing at least 20 wt.-% by weight belite and a combination of at least one aminopolycarboxylic acid or salt thererof with at least one of a carboxylic acid having only carbon, hydrogen, and oxygen atoms in its molecule or salt thererof.
C04B 28/14 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium
C04B 28/16 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments de sulfate de calcium contenant de l'anhydrite
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
The present invention relates to a composite cement obtainable by grinding Portland cement clinker and latent hydraulic material together, preferably in the presence of at least one amine grinding aid, to provide a ground mixture and combining the ground mixture with a mineral filler. It further relates to a method of manufacturing the composite cement comprising the steps of grinding a latent hydraulic material and a portland cement clinker together, preferably in the presence of at least one amine, to provide a ground mixture and combining the ground mixture with one or more mineral fillers as well as to binders and to using the cement or binders as building material.
The invention relates to a method for controlling an ammonia content in the exhaust gas (E) from a cement manufacturing plant wherein the gaseous stream (G) produced during sintering a raw meal (M) to form a cement clinker (C) is passed into a conditioning stage in which an amount of SO2 is adjusted that suffices for reducing the ammonia to the desired level by reaction of ammonia with SO2 to form ammonium sulfur compounds which are captured in a dedusting filter of the plant as solid material. The invention further provides a cement manufacturing plant comprising a raw material mill (1) for grinding a raw material to provide a raw meal, a preheater (2a) or a preheater/calciner (2) for preheating or preheating and calcining the raw meal, a kiln (3) for sintering the raw meal to a clinker, a cooler (4) for cooling the clinker and a dedusting filter for separating a gaseous stream from the preheater and/or the raw material mill into a solid dust and an exhaust gas, wherein a conditioning unit (5) receiving an adjusted amount of SO2 and equipped with a device for measuring the content of ammonia and SO2 in the gaseous stream from the preheater and/or the raw material mill is arranged before the dedusting filter or made integral with the dedusting filter.
The present invention relates to a method of retarding the setting of alkali activated binders by adding a boron compound and at least one of acetic acid or an acetate as a retarder, a retarder for alkali activated binders that comprise an alumino-silicate source and an activator, wherein the retarder contains a boron compound and at least one of acetic acid or an acetate, and to the use of the binder retarded accordingly or containing such a retarder for manufacturing precast products or ready mix concrete.
C04B 28/00 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
Device for manufacturing belite calcium sulfoaluminate ternesite clinker, comprising a rotary kiln (1 ) and a cooler (3), wherein a tempering device (2) is provided between an outlet of the rotary kiln (1) and the cooler (3), wherein the tempering device (2) comprises a control unit (4) that regulates a temperature control means, preferably a heating means (5) and/or a gas supply, and the residence time.
This invention relates to a method for producing a supplementary cementitious material comprising the steps: - providing a starting material containing dolomite and aluminium silicate, - converting the starting material to the supplementary cementitious material by burning under reducing conditions in the temperature range of > 700 to 1100 °C or by burning in the temperature range of 625 to 950 °C in the presence of a mineraliser, - and cooling the supplementary cementitious material. The invention further relates to a binder comprising cement and to the ground supplementary cementitious material.
Process for operating a cement or lime plant comprising a cement (1, 11) or lime kiln (21, 31) and a calciner (2, 12), wherein heat is generated by combustion of a fuel in the kiln (1, 11, 21, 31) and/or calciner (2, 12), wherein a gas fed to the kiln (1, 11, 21, 31) and the calciner (2, 12) or to the calciner (2, 12) for combustion of the fuel contains an oxygen rich exhaust gas from a bioreactor (4, 14, 24, 34) containing photoautotrophic organisms and wherein the plant is preferably operated in the oxyfuel mode by using exhaust gas from the kiln (1, 21) and/or calciner (2) together with the oxygen from the bioreactor as the gas fed to the kiln (1, 21) and/or calciner (2) for combustion of the fuel.
The present invention relates to the use of belite calciumsulfoaluminate ternesite cement for producing components and structures by means of 3D printing and a method for producing components and structures by the 3D printing of belite calciumsulfoaluminate ternesite cement.
The invention relates to a method for binding carbon dioxide, comprising: providing a starting material which comprises sources for CaO and SiO2 and optionally also Al, Fe and/or Mg; hydrothermally treating the starting material in an autoclave at 50 to 300 °C; annealing at 350 to 600 °C; and curing the resulting material with carbon dioxide. The invention further relates to components which are obtained by curing a material according to the method.
C04B 40/02 - Choix de l'environnement pour le durcissement
C04B 28/18 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des mélanges du type chaux et silice
C04B 111/00 - Fonction, propriétés ou utilisation des mortiers, du béton ou de la pierre artificielle
41.
SOLIDIFICATION AND HARDENING ACCELERATOR FOR HYDRAULIC BINDERS
The invention relates to an additive that accelerates the development of strength of hydraulic binders, comprising an alkanolamine of the formula in which R1 stands for an alkyl with at least 3 hydroxyl groups, and R2 and R3 stand, independently of one another, for an alkyl group or a monovalent or polyvalent alkanol group, and to a method for accelerating the strength development of hydraulic binders, where this is added.
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
42.
MINERALIZER FOR CALCIUM SULFOALUMINATE TERNESITE CEMENTS
The present invention relates to a method for the production calcium sulfoaluminate (belite, ferrite) ternesite clinker using fluxes/mineralizers comprising the following steps: providing a raw meal comprising at least sources of CaO, SiO2, AI2O3, SO3, sintering the raw meal in a kiln at >1200 to 1400 °C to provide a clinker, cooling the clinker, wherein a mineralizer comprising at least one compound containing chrome is added prior to sintering providing an amount of chrome calculated as Cr2O3 of at least 500 mg/kg in the raw meal. The invention further relates to the clinker obtained, as well as to calcium sulfoaluminate (belite, ferrite) ternesite cements and binders produced from the clinker.
The invention relates to a method for producing cements by hydrothermally treating a starter material containing sources of CaO and SiO2 by autoclave at a temperature of 100 to 300°C, and tempering the obtained intermediate product at 350 to 700°C, wherein water formed during tempering is dissipated by grinding the intermediate product and/or tempering taking place under a continuous gas stream. The invention also relates to cements obtained in this manner, hydraulic binders therefrom, and building materials which contain said binders.
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
C04B 28/18 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des mélanges du type chaux et silice
C04B 7/345 - Ciments hydrauliques non prévus par l'un des groupes
44.
ACTIVATOR WITH A LOW PH-VALUE FOR CLINKER SUBSTITUTE MATERIALS
The invention relates to activators for clinker substitute material, comprising reactive belite which can be obtained by hydrothermally treating a starter material containing sources of CaO and SiO2 by autoclave at a temperature of between 100 and 300°C and tempering the obtained intermediate product at 350 to 495°C; hydraulic binders based on clinker substitute material and reactive belite as an activator, which can be obtained by hydrothermally treating a starter material containing sources of CaO and SiO2 by autoclave at a temperature of between 100 and 300°C and tempering the obtained intermediate product at 350 to 495°C; a method for activating clinker substitute material by adding reactive belite which can be obtained by hydrothermally treating a starter material containing sources of CaO and SiO2 by autoclave at a temperature of between 100 and 300°C and tempering the obtained intermediate product at 350 to 495°C; and to the use as an activator of the material containing reactive belite.
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
C04B 28/18 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des mélanges du type chaux et silice
C04B 7/345 - Ciments hydrauliques non prévus par l'un des groupes
C04B 7/153 - Leurs mélanges avec d'autres matières inorganiques cimentaires ou avec d'autres activateurs
45.
TREATMENT OF EXHAUST GASES FROM CEMENT CLINKER PRODUCTION
A method for the treatment of exhaust gases from the production of cement clinker in a rotary kiln, in which raw materials are ground in a mill to form raw meal, raw meal is preheated in a counterflow configuration in a preheater with exhaust gas from the rotary kiln and is optionally pre-calcinated, preheated and possibly pre-calcinated raw meal is supplied to the rotary kiln and is burned in the rotary kiln to form cement, the exhaust gas from the rotary kiln is, before entering the preheater, denitrogenized by way of selective non-catalytic nitrogen oxide reduction with a reagent which provides ammonia, and wherein, according to the invention, the exhaust gas from the preheater is subjected to gas conditioning and catalytic oxidation of ammonia. The object is furthermore achieved by way of a device for gas conditioning and catalytic oxidation, which device is arranged between preheater and mill.
The invention relates to a retarding mixture comprising sodium gluconate and alkali hydrogen carbonate, an alkali-activated binding agent containing sodium gluconate and alkali hydrogen carbonate, and to a method for adjusting the development of strength, in which sodium gluconate and alkali hydrogen carbonate are added to an alkali-activated binding agent.
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
C04B 28/18 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des mélanges du type chaux et silice
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
C04B 28/00 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates
47.
CLINKER SUBSTITUTE MATERIAL MADE OF ALUMINIUM SILICATE AND DOLOMITE
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 ᡶ800 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.
C04B 7/12 - Pouzzolanes naturelsCiments de pouzzolanes naturels
C04B 7/13 - Leurs mélanges avec des matières inorganiques cimentaires, p. ex. ciments Portland
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
Method of grinding cement clinkers comprising at least two kinds of clinker phases with differing grindability, comprising the steps: - feeding the cement clinker (100) to a first milling stage - grinding the cement clinker (100) in the first milling stage with a setting of grinding power and grinding time that allows grinding an easier to grind phase to a predetermined maximum particle size while a harder to grind phase maintains a particle size larger than the predetermined maximum particle size - transferring the output from the first mill (101) to a first separator (102) dividing the output into a first fraction (103) with the predetermined maximum particle size and a second fraction (200) with a larger particle size - transferring the second fraction (200) with a larger particle size to a second milling stage and - grinding the second fraction (200) with a larger particle size in the second milling stage to a final maximum particle size smaller than the predetermined maximum particle size.
B02C 23/12 - Séparation ou triage de matériaux, associé au broyage ou à la désagrégation au moyen d'un séparateur situé dans le passage de décharge de la zone de broyage ou de désagrégation avec retour des matériaux hors dimension à la zone de broyage ou de désagrégation
49.
STRUCTURING ELEMENTS FOR ROAD SURFACES, USE THEREOF AND METHOD FOR PRODUCING ROAD SURFACES
The application relates to structuring elements (1) for the gritting or noise-reduction of road surfaces, having a tetrahedral basic shape with a distance of 2-10 mm between two vertices, the structuring elements having concave surfaces with a ratio of arc height to distance between two vertices ranging from 0.05-0.35, and a compressive strength of at least 120 MPa determined according to DIN EN 196-1. The application further relates to a method for producing or repairing road surfaces, in which the structuring elements (1) are spread on and ground into the wearing course (2) while the same is still in a plastic state, and to the use of the structuring elements (1) for the gritting or noise-reduction of road surfaces.
The present invention relates to a dry mortar and a mortar slurry, and a method for producing semi-rigid coatings. In one embodiment, the dry mortar and/or mortar slurry comprises a cement, a very fine component, and a superplasticizer and is free of silica fume, wherein the mortar slurry can be applied at an asphalt framework temperature between 55 and 80 °C, and a compressive strength of at least 100 N/mm2 is reached after 28 days. In a further embodiment, the dry mortar and/or mortar slurry additionally contains a gelling agent to reduce the propensity of the mortar slurry to flow out.
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
C04B 40/06 - Inhibition de la prise, p. ex. pour mortiers du type à action différée contenant de l'eau dans des récipients frangibles
E01C 7/26 - Revêtements continus réalisés sur place faits de matériaux d'empierrement et de liants de matériaux d'empierrement et de liant bitumeux mélangés à d'autres matériaux, p. ex. au ciment, au caoutchouc, au cuir, à des fibres
C04B 111/00 - Fonction, propriétés ou utilisation des mortiers, du béton ou de la pierre artificielle
C04B 111/10 - Compositions caractérisées par l'absence d'un matériau spécifié
51.
METHOD FOR PRODUCING BINDERS CONTAINING WOLLASTONITE
The invention relates to a method for producing clinker containing wollastonite, wherein a starting material is provided, which contains sources for SiO2 and CaO and contains at least 20 wt% of by-products and waste products, a raw meal is produced from the starting material by grinding or granulating and/or mixing and/or homogenizing a raw meal, the raw meal is sintered in a cylindrical rotary kiln at temperatures of 900 to 1500 °C into a clinker containing at least 40 wt% of wollastonite and/or para-wollastonite, and the clinker is cooled. The fuel energy can be provided partially or completely by alternative fuels. The invention further relates to a wollastonite composite cement, which contains wollastonite and inorganic mineral materials.
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
C04B 7/24 - Ciments produits à partir de schistes bitumineux, de déchets ou de résidus autres que des scories
C04B 28/18 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des mélanges du type chaux et silice
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
19 - Matériaux de construction non métalliques
Produits et services
Chemical additives for use as hydraulic binding agents;
chemical additives for use as binding agents for concrete. Building materials (non-metallic), in particular concrete,
mortar, cement.
53.
FLUXES/MINERALIZERS FOR CALCIUM SULFOALUMINATE CEMENTS
The present invention relates to a method for the production calcium sulfoaluminate (belite, ferrite, ternesite) clinker using fluxes/mineralizers comprising the following steps - providing a raw meal comprising at least sources of CaO, AI2O3, SO3 - sintering the raw meal in a kiln at 1100 to 1350 °C to provide a clinker, - cooling the clinker, wherein at least one compound containing copper and a glass powder or a glass powder are added prior to sintering. The invention further relates to the clinker obtained, as well as to calcium sulfoaluminate based cements and binders produced from the clinker.
The present invention relates to a binder comprising calcium sulfoaluminate (CSA) cement and a magnesium compound, to a method of enhancing strength development and/or increasing compressive strength of building structures from CSA binders and to the use of magnesium compounds as additives for increasing compressive strength of hydrated CSA binders wherein the magnesium compound is chosen from - low (300 to < 750 °C) to middle (750 to 1100 °C) burnt MgO, - magnesium hydroxide - magnesium salts of inorganic acids, preferably sulfate (e.g. MgSO4 or K2Mg2(SO4)3), chloride, nitrate, hydrogencarbonate or MgCO3 wH2O with w ranging from 1 to 3, xMgCO3-yMg(OH)2 zH2O with x ranging from 1 to 4, y ranging from 0.5 to 2 and z ranging from 0 to 5 - magnesium salts of organic acids, preferably formiate or acetate - an amorphous magnesium compound (e.g. based on Mg(OH)2, MgO, MgCO3 zH2O, magnesium silicate hydrates or mixtures thereof) - SCM rich in MgO, i.e. with a content of MgO > 10 % by weight - mixtures of two or more of the foregoing.
The present invention relates to composite binders containing calcium sulfoaluminate cement and supplementary cementitious material, wherein a weight ratio of calcium sulfate to the sum of ye'elimite, aluminates and ferrites (R$/(Y+A+F)) ranges from 0.5 to 0.85, to a method of manufacturing them comprising the steps: a) providing at least one calcium sulfoaluminate cement b) providing at least one supplementary cementitious material c) mixing 10 to 90 % by weight calcium sulfoaluminate cement(s) with 10 to 90 % by weight supplementary cementitious material(s), and to their use for making hydraulically setting building materials and special construction chemical compositions.
The present invention relates to a method of enhancing the latent hydraulic and/or pozzolanic reactivity of materials, especially of waste and by-products, comprising the steps: providing a starting material containing sources for CaO and at least one of SiO2 and AI2O3 mixing the starting material with water at a water/solids ratio from 0.1 to 100 hydrothermal treating of the starting material mixed with water in an autoclave at a temperature of 100 to 300 °C and a residence time from 0.1 to 24 hours to provide an autoclaved product suitable as supplementary cementitious material.
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
57.
METHOD FOR PRODUCING MAGNESIUM SILICATE-BELITE-CALCIUM ALUMINATE CEMENT
The present invention relates to a method for producing a binder, comprising the steps of: a) providing a starting material with a molar Ca+Mg/(Si+Al+Fe) ratio of 1.0 to 3.5, a molar Ca/Mg ratio of 0.1 to 100 and a molar Al/Si ratio of 100 to 0.1 - the determination thereof disregarding constituents behaving inertly under hydrothermal autoclave treatment - from raw materials, b) mixing the raw materials, c) hydrothermally treating the step-b) mixture of starting materials in an autoclave at a temperature of 100 to 300 °C for a dwell time of 0.1 to 24 h at a water/solids ratio of 0.1 to 100, d) heating the step-c) intermediate at 350 to 600 °C with a heating rate of 10-6000 °C/min and a dwell time of 0.01-600 min. The present invention relates also to a binder obtainable accordingly, and to its use.
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
The present invention relates to the use of a belite-calcium aluminate which can be obtained in a method involving the steps of: (a) producing a starting material, which has a molar Ca/(Si+AI+Fe) ratio of 1.0 to 3.5 and a molar Al/Si ratio of 100 to 0.1; (b) mixing the raw materials; (c) hydrothermally treating the starting material mixture produced in step (b) in the autoclave at a temperature of 100 to 300 °C and at a residence time of 0.1 to 24 hrs, wherein the water/solid ratio is 0.1 to 100; moderating the temperature of the intermediate product obtained in step (c) at 350 to 600 °C, wherein the heating rate is 10-6000 °C/min and the residence time is 0.01-600 minutes as accelerators for Portland cement. The present invention further relates to a method for accelerating the stiffening/solidification and/or the hardening of binding agents containing Portland cement by adding the belite-calcium aluminate, binding agents containing Portland cement and to the accelerator.
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
The present invention relates to an activator for cement, in particular for Portland composite and composite cement, binders containing the activator and a method for increasing the early strength of construction materials by adding the activator, wherein the activator comprises a hydraulically reactive superfine component having a Blaine fineness of at least 10,000 cm2/g, containing cement clinker, calcium sulphate and limestone, a calcium sulphate, an alkali sulphate / alkali sulphite and a complexing agent from the group of alkanolamines.
C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
The invention relates to a means for treating rock particles contaminated by clay minerals, comprising at least one clay-deactivating means and at least one cationic sedimentation aid. The invention further relates to a method for treating rock particles, wherein the rock particles contaminated by clay minerals are subjected to at least one clay-deactivating means and to at least one cationic sedimentation aid.
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
61.
PROCESS FOR PRODUCING A BELITE CEMENT HAVING A HIGH REACTIVITY AND A LOW CALCIUM/SILICATE RATIO
The invention relates to a process for producing a binding agent, comprising the steps: a) providing a starting material made of raw materials, which has a molar Ca/Si ratio of 1.5 to 2.5, during the determination of which constituents which behave inertly during the hydrothermal treatment in autoclaves are disregarded, b) mixing the raw materials, c) hydrothermally treating the starting material mixture produced in step b) in the autoclave at a temperature of 100 to 300° C followed by residence time of 0.1 to 24 hours, wherein the water/solids ratio is 0.1 to 100, d) annealing the intermediate product obtained in step c) at 350 to 495° C, wherein the heating rate is 10-6000° C/min and the residence time is 0.01-600 min, wherein, during the mixing b) and/or in the following steps, 0.1 to 30% by weight of additional elements and/or oxides are added. The invention further relates to a binding agent obtained in this way and to the use thereof.
The invention relates to a method for producing terensite-clinkers comprising 20 - 95 wt.-% C5S2$ and less than 15 wt. % C4A3$, and to the use of ternesite as an additive to hydraulic and/or latent-hydraulic and/or pozzolanic materials.
The invention relates to a method for accelerating the hardening of hydraulic or latent-hydraulic binding agents, wherein ternesite and an aluminium component are added to the binding agents. The invention also relates to an additive which increases the early strength of hydraulic or latent hydraulic binding agents, containing ternesite and a non-hydraulically reactive aluminium component. The invention further relates to the use of an additive comprising ternesite and to an aluminium component for accelerating the hardening of hydraulic or latent hydraulic binding agents.
C04B 40/00 - Procédés, en général, pour influencer ou modifier les propriétés des compositions pour mortiers, béton ou pierre artificielle, p. ex. leur aptitude à prendre ou à durcir
The invention relates to the production of a ternesite-belite-calcium- sulfoaluminate (ferrit) clinker. The invention also relates to the use of alternative raw materials, e.g. raw materials based on industrial auxiliary products, in particular having a low quality, such as for example pieces of slag and ashen with a low glass content and /or high content of unslaked lime and/or high content of crystalline high temperature phases, and naturally present minerals and igneous glass of a similar chemical composition for the production of clinker.
The invention relates to the production of a ternesite clinker having 20 - 100 wt.-% C5S2$ and less than 15 wt.-% C4A3$, and to the use of ternesite as an additive in Portland cement or Portland composite cement, and binding agents containing 20 - 95 wt.-% Portland cement (clinker) and 80 - 5 wt.-% ternesite (clinker).
The invention relates to a ternesite calcium sulfoaluminate clinker and to a ternsite clinker having 20 - 100 wt.-% C5S2$ and less than 15 wt.-% C4A3$, and to the use of ternesite as an additive in calcium-sulfoaluminate (ferrite)(belite) clinker (CSA(F)(B)), calcium-sulfoaluminate (ferrite)(belite) cement, and to binding agents containing 10 - 90 wt.-% CSA(F)(B) and 90 - 10 wt.-% ternesite.
The present invention relates to a binder composition comprising magnesium oxide, a reactive SiO2 and a hydrated magnesium carbonate of formula x MgCO3 • y Mg(OH)2 • z H2O, wherein x ≥ 1, the carbonate may be non-stoichiometric, and at least one of y or z ≥ 0 and x, y, z may be integers or rational numbers, wherein the weight ratio of magnesia to hydromagnesite ranges from 1 :20 to 20:1. The invention further relates to building materials made from the binder composition and to its use in construction.
C04B 28/10 - Ciments de chaux ou ciments d'oxyde de magnésium
C04B 28/18 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des mélanges du type chaux et silice
The present invention relates to a binder comprising at least one latently hydraulic material and magnesium hydroxide carbonate of the formula x MgCO3 • y Mg(OH)2 • z H2O, where x is a number from 1 to 4, y is 1 and z is a number from 0 to 5, as an activator, to the use of the magnesium hydroxide carbonate as an activator for latently hydraulic material, and to impervious wall compounds and binders for immobilization of pollutants, especially of heavy metals, the solubility of which is increased at pH values of > 12 typical of portland cement, comprising latently hydraulic material and the magnesium hydroxide carbonate. The latently hydraulic material is slag sand or a mixture of slag sand and fly ash.
41 - Éducation, divertissements, activités sportives et culturelles
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Advertising; business management; business administration;
office functions; advertising campaign concerning
environmental protection and biodiversity; public relations;
planning, advice relating to business organization,
arranging and conducting of award programmes for commercial
and advertising purposes. Education; providing of training; entertainment; sporting
and cultural activities; arranging and conducting
colloquiums, seminars, courses, classes and workshops
relating to the preservation and conservation of natural
resources, the enhancement of environmental quality,
biodiversity and sustainable development; arranging and
conducting award ceremonies and award programmes; arranging
and conducting of conferences, award ceremonies. Research and consultancy relating to the preservation and
conservation of natural resources, the enhancement of
environmental quality, biodiversity and sustainable
development.
41 - Éducation, divertissements, activités sportives et culturelles
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
(1) Business management; business administration; Advertising campaign to promote public awareness concerning environmental protection and biodiversity protection; public relations; Planning, organisation, arranging and conducting of conferences, award ceremonies and award programs for commercial and advertising purposes in the field of environmental protection to promote public awareness concerning environmental protection and biodiversity protection. Education, namely educational demonstrations in the field of environmental and biodiversity protection; providing of training in the field of environmental and biodiversity protection; Arranging and conducting colloquiums, seminars, courses, classes and workshops in the field of the preservation and conservation of natural resources, the enhancement of environmental quality, biodiversity and sustainable development; Research and consultancy in the field of the preservation and conservation of natural resources, the enhancement of environmental quality, biodiversity and sustainable development.
The invention relates to a method for removing mercury from clinker kiln exhaust gases. In said method, pulverized hearth furnace coke is blown into the exhaust gas flow moving at about 15 to 25 msec-1 in a counterflow having a speed of about 30 to 50 msec-1 while maintaining a concentration of about 50 to 500 mg/m3n and an exhaust gas temperature of about 120 -130oC.
B01D 53/10 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p. ex. chromatographie préparatoire en phase gazeuse avec adsorbants mobiles avec adsorbants dispersés
74.
BINDER COMPRISING PORTLAND CEMENT AND LIME HYDRATE
The invention relates to the use of lime hydrate to accelerate the development of compressive strength of Portland cement. According to the invention, amounts of 1 to 10 wt.% of calcium hydroxide having a BET surface area of 7 to 16 cm2/g in relation to the cement are added to a binder composition for hydraulically curing compositions.
Building material (not of metal); pipes (not of metal) for
building; asphalt, pitch and bitumen; transportable
buildings (not of metal); memorials (not of metal).
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Matériaux de construction non métalliques; tuyaux rigides
non métalliques pour la construction; asphalte, poix et
bitume; constructions transportables non métalliques;
monuments non métalliques; compositions hydrauliques
d'agglomérants contenant du ciment, du béton, du plâtre, de
la chaux et/ou des matériaux à base de déchets durcissant
sous l'action de l'eau pour l'amélioration et la
stabilisation du sol. Construction; services d'installation; services
d'aménagement et services de construction pour
l'amélioration et la stabilisation du sol avec des
compositions hydrauliques d'agglomérants.
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Non-metallic construction material, particularly cement and
other hydraulic inorganic binders; natural and synthetic
construction raw materials; concrete; ready mixed concrete;
mortar; products of concrete or mortar. Building, construction and repair services in the field of
plants for the production of cement and other hydraulic
inorganic binders, also of natural and synthetic raw
materials as well as of concrete and mortar products;
building, construction and repair services in the field of
plants for processing of cement and other hydraulic
inorganic binders, also of natural and synthetic raw
materials as well as of concrete and mortar products and
repairs in structural and civil engineering buildings.
Matériaux de construction (non métalliques), à savoir
mélanges secs pour l'étanchéification de décharges de
déchets contre l'eau, de sols et de travaux souterrains
exposés à des substances nuisibles; masses contenant des
minéraux argileux et des scories de hauts fourneaux.
