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公开(公告)号：US20240092697A9
公开(公告)日：2024-03-21
申请号：US18023268
申请日：2021-08-25
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.
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公开(公告)号：US20230312413A1
公开(公告)日：2023-10-05
申请号：US18023276
申请日：2021-08-25
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
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.
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公开(公告)号：US20230303446A1
公开(公告)日：2023-09-28
申请号：US18023268
申请日：2021-08-25
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.
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公开(公告)号：US20230312412A1
公开(公告)日：2023-10-05
申请号：US18023055
申请日：2021-08-25
CPC分类号： C04B7/02 , C04B24/02 , C04B22/143 , C04B22/10 , C04B24/04 , C04B2103/408
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, in an amount of 180 to 400 kg per m3 of the freshly mixed construction composition; b) a supplementary cementitious material having a Dv90 of less than 200 μm, in a total amount of 50 to 100 parts by weight, relative to 100 parts by weight of cementitious binder a), the supplementary cementitious material 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 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 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. Ingredients of the construction composition are abundantly available.
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公开(公告)号：US20210179493A1
公开(公告)日：2021-06-17
申请号：US16093220
申请日：2017-04-28
发明人： Peter SCHWESIG , Madalina STEFAN , Luc NICOLEAU , Alexander KRAUS
摘要： The invention relates to a process for the wet milling of slag, wherein more than 100 kWh of milling energy are introduced per metric ton of slag and the weight ratio of slag to water is 0.05-4:1 and from 0.005 to 2% by weight, based on the slag, of a milling auxiliary which comprises at least one compound selected from the group consisting of polycarboxylate ether, phosphated polycondensation product, lignosulfonate, melamine-formaldehyde sulfonate, naphthalene-formaldehyde sulfonate, monoglycols, diglycols, triglycols and polyglycols, polyalcohols, alkanolamine, amino acids, sugar, molasses and curing accelerators based on calcium silicate hydrate is added to the material being milled before or during the milling.
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公开(公告)号：US20240351956A1
公开(公告)日：2024-10-24
申请号：US18683820
申请日：2022-09-28
发明人： Bernhard SACHSENHAUSER , Massimo BANDIERA , Sabine HIMMELEIN , Kai Steffen WELDERT , Peter SCHWESIG , Matthias KLEIN , Ramzi FARRA , Klaus LORENZ
IPC分类号： C04B40/00 , C04B22/06 , C04B22/10 , C04B22/12 , C04B24/02 , C04B24/06 , C04B24/26 , C04B28/06 , C04B103/22 , C04B103/40
CPC分类号： C04B40/0039 , C04B22/062 , C04B22/106 , C04B22/124 , C04B24/02 , C04B24/06 , C04B24/2647 , C04B28/065 , C04B40/0032 , C04B2103/22 , C04B2103/408
摘要： A set control composition for cementitious systems comprises a) (a-1) a hydroxy monocarboxylic acid or a salt thereof, and (a-2) optionally, a polycarboxylic acid having a carboxylic acid equivalent weight of 333 or less, or a salt thereof, the carboxylic acid equivalent weight being the molecular weight of the polycarboxylic acid divided by the number of carboxylic acid functional groups, wherein (a-1) contributes at least 90% of the carboxyl groups to the total number of carboxyl groups of (a-1) and (a-2), 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 1.2 to 20, and c) a polyol in a weight ratio of c) to a) in the range of 1.0 to 10. The set control composition for cementitious systems effectively improves workability of cementitious systems for prolonged periods of time without compromising early compressive strength.
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7.发明申请POLYCONDENSATION PRODUCT BASED ON AROMATIC COMPOUNDS, METHOD FOR THE PREPARATION AND USE THEREOF 审中-公开基于芳族化合物的聚合产物，其制备和使用方法公开(公告)号：US20170044064A1
公开(公告)日：2017-02-16
申请号：US15339275
申请日：2016-10-31
发明人： Frank DIERSCHKE , Torben GÄDT , Uwe GEHRIG , Michael MELCHART , Mario VIERLE , Peter SCHWESIG , Klaus HARTL , Madalina Andreea STEFAN , Tatiana MITKINA , Maxim PULKIN
IPC分类号： C04B24/30
CPC分类号： C04B24/30 , C04B24/22 , C04B24/246 , C04B24/302 , C04B40/0039 , C04B2103/408 , C04B2103/52 , C08G8/28 , C08G12/40 , C08G16/0218 , C08G16/0243 , Y02P40/20 , C04B24/02 , C04B24/04 , C04B24/10 , C04B24/122 , C04B24/123 , C04B24/18 , C04B24/226 , C04B24/2641 , C04B24/305 , C04B28/02
摘要： Proposed is a polycondensation product comprising as monomer components at least one aryl polyoxyalkylene ether, at least one vicinally disubstituted aromatic compound, at least one aldehyde and also optionally further aromatic compounds; processes for preparing same, and also use thereof as dispersant for aqueous suspensions of inorganic binders and as grinding assistant for inorganic binders.
摘要翻译： 提出的是缩聚产物，其包含作为单体成分的至少一种芳基聚氧化烯醚，至少一个邻位二取代的芳族化合物，至少一种醛和任选的其它芳族化合物; 制备方法，也用作无机粘合剂的水性悬浮液的分散剂和无机粘合剂的研磨助剂。
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