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1. 发明授权

US11939273B2 Limestone calcined clay cement (LC3) construction composition 有权
公开(公告)号：US11939273B2
公开(公告)日：2024-03-26
申请号：US18023055
申请日：2021-08-25
申请人： Construction Research & Technology GmbH
发明人： Massimo Bandiera , Peter Schwesig , Bernhard Sachsenhauser , Sebastien Dhers
IPC分类号： C04B22/10 , C04B7/02 , C04B22/14 , C04B24/02 , C04B24/04 , C04B28/14 , C04B28/16 , C04B103/40
CPC分类号： C04B7/02 , C04B22/10 , C04B22/143 , C04B24/02 , C04B24/04 , C04B28/14 , C04B28/16 , C04B2103/408 , C04B2201/50 , Y02P40/18 , Y02W30/91 , C04B28/16 , C04B7/02 , C04B14/06 , C04B14/106 , C04B14/28 , C04B22/106 , C04B24/02 , C04B24/06 , C04B24/2676 , C04B24/30 , C04B28/14 , C04B7/02 , C04B14/106 , C04B14/28 , C04B14/303 , C04B20/008 , C04B22/0093 , C04B24/003 , C04B24/02 , C04B24/04 , C04B24/04 , C04B24/04 , C04B24/38 , C04B2103/32 , C04B2103/54 , C04B28/14 , C04B7/02 , C04B14/106 , C04B14/28 , C04B20/008 , C04B22/148 , C04B24/00 , C04B24/003 , C04B24/04 , C04B24/04 , C04B24/04 , C04B24/10 , C04B24/38 , C04B2103/32 , C04B2103/54 , C04B28/14 , C04B7/02 , C04B7/32 , C04B14/106 , C04B14/26 , C04B20/008 , C04B22/10 , C04B24/003 , C04B24/02 , C04B24/04 , C04B24/04 , C04B24/04 , C04B24/38 , C04B2103/32 , C04B2103/54 , C04B28/14 , C04B7/02 , C04B7/323 , C04B14/106 , C04B14/28 , C04B20/008 , C04B24/00 , C04B24/003 , C04B24/04 , C04B24/04 , C04B24/04 , C04B24/10 , C04B24/38 , C04B2103/32 , C04B2103/54
摘要： A limestone calcined clay cement construction composition comprises a) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, and having a Blaine surface area of at least 3800 cm2/g; b) a supplementary cementitious material having a Dv90 of less than 200 μm comprising (b-1) a calcined clay material and (b-2) a carbonate rock powder in a weight ratio of (b-1) to (b-2) in the range of 0.5 to 2; c) optionally, an extraneous aluminate source; d) a sulfate source; and e) a polyol. The composition contains a controlled amount of available aluminate, calculated as Al(OH)4−, from the calcium aluminate mineral phases plus the optional extraneous aluminate source; and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition further comprises f) an ettringite formation controller. The limestone calcined clay cement construction composition is a reduced carbon footprint composition and exhibits high early strength, high final strength, sufficient open time and high durability.

2. 发明公开

US20240034689A1 SET CONTROL COMPOSITION FOR CEMENTITIOUS SYSTEMS 审中-公开
公开(公告)号：US20240034689A1
公开(公告)日：2024-02-01
申请号：US18023101
申请日：2021-08-25
申请人： Construction Research & Technology GmbH
发明人： Klaus LORENZ , Massimo BANDIERA , Sabine HIMMELEIN , Bernhard SACHSENHAUSER
IPC分类号： C04B40/00 , C04B24/26 , C04B24/00 , C04B22/08 , C04B24/04 , C04B24/10 , C04B24/06 , C04B28/16
CPC分类号： C04B40/0039 , C04B24/2641 , C04B24/2664 , C04B24/003 , C04B22/08 , C04B24/045 , C04B24/10 , C04B24/06 , C04B28/16 , C04B2103/22
摘要： A set control composition for cementitious systems comprises a retarder (a) selected from (a-1) polymeric polycarboxylic acids selected from homopolymers and copolymers of α,β-ethylenically unsaturated carboxylic acids; and copolymers of at least one α,β-ethylenically unsaturated carboxylic acid and at least one sulfo group containing monomer; and salts thereof, whose milliequivalent number of carboxyl groups is 3.0 meq/g or higher, preferably 3.0 to 17.0 meq/g, and having a molecular weight 25,000 g/mol or less, assuming all the carboxyl groups to be in unneutralized form, (a-2) phosphonic acids and salts thereof, (a-3) low molecular weight polycarboxylic acids and salts thereof, and mixtures thereof, (b) at least one of (b-1) a borate source and (b-2) a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g·L−1 or more at 25° C., and organic carbonates, in a weight ratio of b) to a) in the range of 0.1 to 10, (c) a polyol having at least 3 alcoholic hydroxyl groups in its molecule, in a weight ratio of c) to a) in the range of 0.2 to 4, and (d) a dispersant. The set control composition effectively improves workability of cementitious systems for prolonged periods of time without compromising early compressive strength. The compositions show sufficient open time, i.e., the time until initial setting, good workability during said open time as characterized, for example by adequate slump flow over time, and fast setting. The invention further relates to a construction composition comprising i) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, ii) optionally, an extraneous aluminate source, iii) a sulfate source, and iv) the set control composition. The construction composition contains 0.05 to 0.2 mol of total available aluminate, calculated as Al(OH)4−, from the calcium aluminate mineral phases plus the optional extraneous aluminate source, per 100 g of cementitious binder i), and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0.

3. 发明公开

US20230312413A1 CONSTRUCTION COMPOSITION 审中-公开
公开(公告)号：US20230312413A1
公开(公告)日：2023-10-05
申请号：US18023276
申请日：2021-08-25
申请人： Construction Research & Technology GmbH
发明人： Klaus LORENZ , Wolfgang SEIDL , Tatiana MITKINA , Sabine HIMMELEIN , Peter SCHWESIG , Massimo BANDIERA , Bernhard SACHSENHAUSER , Farra RAMZI , Davide CARNELLI , Johanna PARKS , Kai Steffen WELDERT , Matthias KLEIN , Jasveer RAMROO BENI
IPC分类号： C04B7/02 , C04B28/18 , C04B28/04 , C04B28/06 , C04B28/14 , C04B24/02 , C04B24/04
CPC分类号： C04B7/02 , C04B28/188 , C04B28/04 , C04B28/06 , C04B28/14 , C04B24/02 , C04B24/04 , C04B2103/408
摘要： A construction composition comprises a) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases; b) optionally, an extraneous aluminate source; c) a sulfate source; d) an ettringite formation controller comprising (i) glyoxylic acid, a glyoxylic acid salt and/or a glyoxylic acid derivative; and (ii) at least one of a borate source and a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g·L−1 or more, organic carbonates, and mixtures thereof; and e) a polyol in an amount of 0.2 to 2.5 wt.-%, relative to the amount of cementitious binder a). The composition contains 0.05 to 0.2 mol of total available aluminate, calculated as Al(OH)4−, from the calcium aluminate mineral phases plus the optional extraneous aluminate source, per 100 g of cementitious binder a); and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition exhibits high early strength and sufficient open time. The advantageous effects are readily achievable for a variety of cements with varying elemental compositions.

4. 发明公开

US20230303446A1 CEMENT-REDUCED CONSTRUCTION COMPOSITION 审中-公开
公开(公告)号：US20230303446A1
公开(公告)日：2023-09-28
申请号：US18023268
申请日：2021-08-25
申请人： Construction Research & Technology GmbH
发明人： Massimo BANDIERA , Peter SCHWESIG , Bernhard SACHSENHAUSER
IPC分类号： C04B28/26 , C04B28/04 , C04B28/14 , C04B11/30 , C04B14/06 , C04B24/26 , C04B24/06
CPC分类号： C04B28/26 , C04B28/04 , C04B28/14 , C04B11/30 , C04B14/06 , C04B24/2652 , C04B24/06
摘要： A cement-reduced construction composition comprises a) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, and having a Blaine surface area of at least 3800 cm2/g, in an amount of 180 to 400 kg per m3 of the freshly mixed construction composition; b) a fine material having a Dv90 of less than 200 μm, selected from alkali-activatable binders, rock powders and inorganic pigments, or mixtures thereof, in a total amount of 20 to 200 parts by weight, relative to 100 parts by weight of cementitious binder a); c) optionally, an extraneous aluminate source; d) a sulfate source; and e) a polyol in an amount of 0.3 to 2.5 wt.-%, relative to the amount of cementitious binder a). The composition contains available aluminate, calculated as Al(OH)4—, from the calcium aluminate mineral phases plus the optional extraneous aluminate source, per 100 g of cementitious binder a), in a total amount of at least 0.08 mol, if the amount of cementitious binder a) is in the range of 180 to less than 220 kg per m3 of the freshly mixed composition, at least 0.06 mol, if the amount of cementitious binder a) is in the range of 220 to less than 280 kg per m3 of the freshly mixed composition, and at least 0.05 mol, if the amount of cementitious binder a) is 280 kg or more per m3 of the freshly mixed composition; and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition further comprises f) an ettringite formation controller comprising (i) glyoxylic acid, a glyoxylic acid salt and/or a glyoxylic acid derivative; and (ii) at least one of (ii-a) a borate source and (ii-b) a carbonate source, wherein the carbonate source is selected from inorganic carbonates having an aqueous solubility of 0.1 g·L−1 or more, organic carbonates, and mixtures thereof; and g) a co-retarder selected from (g-1) α-hydroxy monocarboxylic acids and salts thereof, (g-2) phosphonic acids and salts thereof, (g-3) polycarboxylic acids and salts thereof, and mixtures thereof. The cement-reduced construction composition is a reduced carbon footprint construction composition and exhibits high early strength, high final strength, sufficient open time, high durability, and reduced shrinkage compared to ordinary Portland cement based mixes. Ingredients of the construction composition are abundantly available.

5. 发明授权

US11519077B2 Galvanic anode and method of corrosion protection 有权
公开(公告)号：US11519077B2
公开(公告)日：2022-12-06
申请号：US16127627
申请日：2018-09-11
申请人： Construction Research & Technology, GmbH
发明人： Frederick R. Goodwin
IPC分类号： C23F13/10 , C23F13/06 , C23F13/14 , C04B111/26
摘要： A hybrid sacrificial galvanic anode, an anodic system including the hybrid sacrificial anode, and a method of cathodically protecting steel reinforcement in concrete structures is provided. The hybrid anode provides initial steel polarization followed by long term galvanic protection without the use of batteries or external power supplies.

6. 发明授权

US11279845B2 Low VOC, high solid deck membranes 有权
公开(公告)号：US11279845B2
公开(公告)日：2022-03-22
申请号：US16478779
申请日：2017-02-15
申请人： CONSTRUCTION RESEARCH & TECHNOLOGY GMBH
发明人： Chia Wang , Brian Mullen , Roland Pavek
IPC分类号： C09D175/04 , C09D7/20 , C08G18/12 , C08G18/62 , C08G18/76
摘要： A basecoat coating composition includes an aromatic polyurethane pre-polymer having isocyanate terminal end groups, a first solvent and optionally a second VOC-exempt solvent, in which the total composition formulation has a VOC content of less than 97 g/L. A topcoat coating composition includes an aliphatic polyurethane pre-polymer having isocyanate terminal end groups, a first solvent and optionally a second VOC-exempt solvent, in which the total composition formulation has a VOC content of less than or equal to 95 g/L. The total composition formulations of the basecoat and/or topcoat may have a VOC content of less than 50 g/L. A membrane system may include an optional primer coating, and the above described basecoat and topcoat coating compositions.

7. 发明申请

US20210380837A1 LOW VOC, HIGH SOLID DECK MEMBRANES 有权
公开(公告)号：US20210380837A1
公开(公告)日：2021-12-09
申请号：US17404394
申请日：2021-08-17
申请人： CONSTRUCTION RESEARCH & TECHNOLOGY GMBH
发明人： Chia WANG , Brian MULLEN , Roland PAVEK
IPC分类号： C09D175/04 , C09D7/20 , C08G18/12 , C08G18/62 , C08G18/76
摘要： A basecoat coating composition includes an aromatic polyurethane pre-polymer having isocyanate terminal end groups, a first solvent and optionally a second VOC-exempt solvent, in which the total composition formulation has a VOC content of less than 97 g/L. A topcoat coating composition includes an aliphatic polyurethane pre-polymer having isocyanate terminal end groups, a first solvent and optionally a second VOC-exempt solvent, in which the total composition formulation has a VOC content of less than or equal to 95 g/L. The total composition formulations of the basecoat and/or topcoat may have a VOC content of less than 50 g/L. A membrane system may include an optional primer coating, and the above described basecoat and topcoat coating compositions.

8. 发明授权

US11130834B2 Polyamide foams which inhibit the spread of fires for filling cavities in mining 有权
公开(公告)号：US11130834B2
公开(公告)日：2021-09-28
申请号：US16326869
申请日：2017-09-04
申请人： Construction Research & Technology GmbH
发明人： Burkhard Walther , Bernhard Feichtenschlager , Christoph Herrmann
IPC分类号： C09K8/588 , C08G18/76 , C08G18/34 , C08K5/521 , C08K5/16 , E04B1/82 , E04B1/94 , E21B33/138 , E21F15/00 , C08G101/00
摘要： Polyamide foams which do not propagate fire are obtained by mixing (i) a liquid isocyanate component which comprises at least one polyisocyanate and in which the molar ratio of aromatic isocyanate groups to the sum of aromatic and aliphatic isocyanate groups is at least 60 mol %, with (ii) at least one liquid isocyanatereactive component which comprises a reactive diluent, and the reactive diluent 10 comprises (a) a chain-extending and/or crosslinking reactive diluent selected from among aliphatic branched C24-66-polycarboxylic acids, alicyclic C24-66-polycarboxylic acids and partial esters of polycarboxylic acids having at least two unesterified carboxyl groups and/or (b) a chain-terminating reactive diluent selected from among aliphatic branched C24-66-monocarboxylic acids, alicyclic C24-66-monocarboxylic acids and partial esters of polycarboxylic acids having one unesterified carboxyl group, wherein the liquid isocyanate-reactive component comprises an aromatic C8-18-polycarboxylic acid and/or an anhydride thereof.

9. 发明授权

US11097988B2 Strength enhancing admixture for cementitious compositions 有权
公开(公告)号：US11097988B2
公开(公告)日：2021-08-24
申请号：US16467724
申请日：2017-12-21
申请人： Construction Research & Technology GmbH
发明人： Van Bui , Steve Schaef , Paul Horst Seiler
IPC分类号： C04B40/00 , C04B22/00 , C04B22/08 , C04B22/14 , C04B24/10 , C04B24/12 , C04B24/26 , C04B28/02 , C04B103/10 , C04B103/40 , C04B103/50
摘要： A strength enhancing admixture for cementitious and/or pozzolanic compositions including, based on the total dry weight of the admixture, calcium silicate hydrate in an amount of from about 0.5 to about 94 weight percent, and: i) at least one alkanolamine in an amount of from about 0.5 to about 55 weight percent; ii) at least one inorganic accelerator in an amount of from about 0.5 to about 85 weight percent; and iii) at least one carbohydrate in an amount of from about 0.5 to about 50 weight percent; wherein the calcium silicate hydrate includes a product of a reaction of a water-soluble calcium compound with a water-soluble silicate compound in presence of a water-soluble dispersant; and wherein the at least one inorganic accelerator includes any inorganic accelerator(s) other than calcium silicate hydrate.

10. 发明授权

US11066337B2 Inorganic foam based on calcium sulfoaluminate 有权
公开(公告)号：US11066337B2
公开(公告)日：2021-07-20
申请号：US16489872
申请日：2018-03-05
申请人： Construction Research & Technology GmbH , De Cavis AG
发明人： Sarunas Turcinskas , Bernhard Feichtenschlager , Gerhard Albrecht , Pauline Petit , Urs Gonzenbach , Philip Sturzenegger
IPC分类号： C04B38/02 , C04B7/02 , C04B12/04 , C04B14/04 , C04B14/10 , C04B14/28 , C04B14/30 , C04B14/32 , C04B16/06 , C04B18/08 , C04B18/14 , C04B20/00 , C04B22/06 , C04B22/14 , C04B24/00 , C04B24/02 , C04B24/04 , C04B24/12 , C04B24/16 , C04B28/06 , C04B103/00 , C04B103/12 , C04B103/22 , C04B103/32 , C04B103/40 , C04B103/44 , C04B103/65
摘要： The present invention relates to a process for preparing a particle-stabilized inorganic foam based on calcium sulfoaluminate, to a particle-stabilized inorganic foam based on calcium sulfoaluminate, to a cellular material obtainable by hardening and optionally drying the particle-stabilized inorganic foam based on calcium sulfoaluminate, and to a composition for preparing an inorganic foam formulation for providing a particle-stabilized inorganic foam based on calcium sulfoaluminate.

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