公开(公告)号：US20240300857A1

公开(公告)日：2024-09-12

申请号：US17999157

申请日：2021-07-27

申请人： QINGDAO UNIVERSITY OF TECHNOLOGY

发明人： Shaochun Li ,  Shilin Xu ,  Ang Liu ,  Yongjuan Geng ,  Dongshuai Hou ,  Ruiyong Zhang ,  Zuquan Jin ,  Song Gao

IPC分类号： C04B24/04 ,  C04B14/04 ,  C04B24/32 ,  C04B24/42 ,  C04B40/00 ,  C04B103/40 ,  C04B103/56

CPC分类号： C04B24/04 ,  C04B14/045 ,  C04B24/32 ,  C04B24/42 ,  C04B40/0046 ,  C04B2103/408 ,  C04B2103/58

摘要： The present disclosure provides use of a graphene oxide/butyl acrylate/silane composite emulsion as an anti-shrinkage agent of a cement-based material. In the present disclosure, active groups on an isobutyltriethoxysilane molecule reacts with hydroxyl groups on a surface of a mortar to form a layered hydrophobic structure, thereby slowing a water loss in the mortar of the cement-based material and avoiding cracking caused by drying shrinkage. Butyl acrylate can be dehydrated to form polymer fibers with a spatial network to fill pores of a cement paste, thereby limiting the shrinkage of the mortar. Graphene oxide has a relatively large specific surface area and oxygen-containing functional groups on a surface, which can provide growth sites for hydration products, and promote the hydration products to form a regular and dense structure in the form of a template, thus ensuring a strength of the cement-based material.

公开(公告)号：US20240270649A1

公开(公告)日：2024-08-15

申请号：US18570315

申请日：2022-03-03

申请人： SHENZHEN UNIVERSITY

发明人： Hongzhi CUI ,  Weipeng FENG ,  Dapeng ZHENG ,  Yu JIN ,  Zhijun DONG

IPC分类号： C04B28/00 ,  C04B22/06 ,  C04B22/16 ,  C04B24/04 ,  C04B24/12 ,  C04B24/20 ,  C04B24/26 ,  C04B24/38 ,  C04B38/02 ,  C04B103/10 ,  C04B103/30 ,  C04B103/44 ,  C04B103/48 ,  C04B111/40

CPC分类号： C04B28/008 ,  C04B22/062 ,  C04B22/16 ,  C04B24/04 ,  C04B24/122 ,  C04B24/20 ,  C04B24/2641 ,  C04B24/383 ,  C04B38/02 ,  C04B2103/10 ,  C04B2103/302 ,  C04B2103/44 ,  C04B2103/48 ,  C04B2111/40

摘要： Disclosed herein are a fly ash-based foam geopolymer, a preparation method therefor, and the use thereof. The fly ash-based foam geopolymer is prepared from raw materials comprising the following components in parts by weight: 900-1000 parts of a fly ash-based material; 600-700 parts of a composite alkali solution; 0-10 parts of a thickening agent; 2-6 parts of a foam stabilizer A; 5-10 parts of a water reducer; and 20-40 parts of a foaming agent. The preparation method of the present application is simple, and processes such as ball milling, water washing and calcining do not need to be carried out on the raw materials, such that the investment in a grinding equipment, a water washing equipment, a sewage treatment equipment, and a calcining equipment is reduced, and the energy consumption and carbon emissions are reduced. The fly ash-based foam geopolymer prepared by using the fly ash-based material as the main raw material in the present application has a low apparent density and a high early strength, and can be used in the field of fabricated buildings.

公开(公告)号：US20240239710A1

公开(公告)日：2024-07-18

申请号：US18564385

申请日：2022-03-22

申请人： MOSHE 3000 MATERIAIS DE CONSTRUÇÃO LTDA

发明人： Celso BARBOSA

IPC分类号： C04B28/04 ,  C04B14/02 ,  C04B14/06 ,  C04B14/28 ,  C04B24/04 ,  C04B40/00 ,  C04B103/32 ,  C04B103/50 ,  C04B103/65

CPC分类号： C04B28/04 ,  C04B14/024 ,  C04B14/062 ,  C04B14/28 ,  C04B24/04 ,  C04B40/0042 ,  C04B40/0082 ,  C04B2103/32 ,  C04B2103/50 ,  C04B2103/65

摘要： The current invention comprises the MANUFACTURING PROCESS AND COMPOSITION OF CONCRETE ADDITIVE with the purpose of adding hydrophobic and waterproofing properties to concrete, as well as improving its mechanical properties. The process involves two phases of component mixing/heating, and the additive composition comprises mortar, cement, calcium carbonate, active microsilica, calcium stearate, and graphite.

公开(公告)号：US20240238865A1

公开(公告)日：2024-07-18

申请号：US18562485

申请日：2022-05-19

申请人： Voxeljet AG

发明人： Ingo EDERER ,  Roman SCHELLER ,  Massimo RUSSO

IPC分类号： B22C1/18 ,  B22C9/02 ,  B22F10/14 ,  B22F10/64 ,  B28B1/00 ,  B33Y10/00 ,  B33Y70/10 ,  B33Y80/00 ,  C04B14/06 ,  C04B24/04 ,  C04B24/16 ,  C04B28/00 ,  C04B103/40 ,  C04B111/00 ,  C04B111/20

CPC分类号： B22C1/188 ,  B22C9/02 ,  B22F10/14 ,  B22F10/64 ,  B28B1/001 ,  B33Y10/00 ,  B33Y70/10 ,  B33Y80/00 ,  C04B14/06 ,  C04B24/045 ,  C04B24/16 ,  C04B28/008 ,  C04B2103/402 ,  C04B2111/00181 ,  C04B2111/2084

摘要： Material system suitable for a 3D printing method or 3D printing method material system comprising or consisting of a particulate material, a printing liquid, and an ester activator as well as 3D printing processes that use such a material system and molding parts produced by means of such material systems and 3D printing processes.

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.

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.

公开(公告)号：US20230323176A1

公开(公告)日：2023-10-12

申请号：US17718802

申请日：2022-04-12

申请人： Agency for Science, Technology and Research ,  NIPO International Pte. Ltd.

发明人： Praveen Thoniyot ,  Sam Siming Dong ,  Yi Jie Eng ,  Steve Tan ,  Amanda Khoo

IPC分类号： C09K5/02 ,  C04B22/06 ,  C04B24/04 ,  B01J13/04 ,  C04B24/38

CPC分类号： C09K5/02 ,  C04B22/06 ,  C04B24/04 ,  B01J13/04 ,  C04B24/383 ,  C04B2103/0071

摘要： There is provided a composition comprising a slurry of capsules, the capsules having shells comprising silica and said shells encapsulating phase change materials (PCM); and a cementitious binder. There is also provided a method for preparing said composition.

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.

公开(公告)号：US20230303442A1

公开(公告)日：2023-09-28

申请号：US18010223

申请日：2021-06-07

申请人： BASF SE

发明人： Harald GRASSL ,  Joachim DENGLER ,  Julien BIZZOZERO ,  Alexander SCHOEBEL

IPC分类号： C04B24/04 ,  C04B28/16 ,  C04B28/06 ,  C04B24/06 ,  C04B28/04

CPC分类号： C04B24/04 ,  C04B24/06 ,  C04B28/04 ,  C04B28/065 ,  C04B28/16 ,  C04B2111/00672

摘要： The present invention relates to a construction chemical composition, comprising a) at least one inorganic binder, b) less than 0.5 weight-%, based on the total amount of a), b) and c), of at least one compound of the general formula (I) and at least c) one alkali metal carbonate. Further the use of a hydration control mixture as a retarder for at least one inorganic binder, comprising an aluminate-containing binder is disclosed.

公开(公告)号：US20230286865A1

公开(公告)日：2023-09-14

申请号：US18019569

申请日：2021-07-29

申请人： Material Research Ltd [GB/GB]

发明人： Robert Michael Heathcote LAWRENCE

IPC分类号： C04B28/26 ,  C04B18/24 ,  C04B24/04 ,  C04B22/06 ,  C04B24/16 ,  C04B40/00 ,  C04B40/02 ,  B32B5/02 ,  B32B9/00 ,  B32B9/06 ,  B32B9/04

CPC分类号： C04B28/26 ,  C04B18/248 ,  C04B24/045 ,  C04B22/068 ,  C04B24/16 ,  C04B40/006 ,  C04B40/0231 ,  C04B40/0263 ,  C04B40/0259 ,  B32B5/022 ,  B32B5/024 ,  B32B9/005 ,  B32B9/06 ,  B32B9/047 ,  C04B2111/00017

摘要： This invention relates to a biodegradable composition comprising a low carbon footprint binder comprising a silicate, and bio-based aggregates. The invention also relates to the binder thereof, products, including insulation material and wall boards/panels, formed from the binder and the composition, a method of preparing the binder and composition and/or the products, and a method of using the binder and composition and/or the products in construction.