公开(公告)号：US11939273B2

公开(公告)日：2024-03-26

申请号：US18023055

申请日：2021-08-25

Applicant: Construction Research & Technology GmbH

Inventor： Massimo Bandiera ,  Peter Schwesig ,  Bernhard Sachsenhauser ,  Sebastien Dhers

IPC: C04B22/10 ,  C04B7/02 ,  C04B22/14 ,  C04B24/02 ,  C04B24/04 ,  C04B28/14 ,  C04B28/16 ,  C04B103/40

CPC classification number: 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

Abstract: 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：US11981606B2

公开(公告)日：2024-05-14

申请号：US18023268

申请日：2021-08-25

Applicant: Construction Research & Technology GmbH

Inventor： Massimo Bandiera ,  Peter Schwesig ,  Bernhard Sachsenhauser

IPC: C04B28/26 ,  C04B11/30 ,  C04B14/06 ,  C04B24/06 ,  C04B24/26 ,  C04B28/04 ,  C04B28/14

CPC classification number: C04B28/26 ,  C04B11/30 ,  C04B14/06 ,  C04B24/06 ,  C04B24/2652 ,  C04B28/04 ,  C04B28/14

Abstract: 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; 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; 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 and g) a co-retarder. 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.

公开(公告)号：US10392306B2

公开(公告)日：2019-08-27

申请号：US15339275

申请日：2016-10-31

Applicant: Construction Research & Technology, GmbH

Inventor： Frank Dierschke ,  Torben Gädt ,  Uwe Gehrig ,  Michael Melchart ,  Mario Vierle ,  Peter Schwesig ,  Klaus Hartl ,  Madalina Andreea Stefan ,  Tatiana Mitkina ,  Maxim Pulkin

IPC: C04B24/30 ,  C08G8/28 ,  C08G12/40 ,  C08G16/02 ,  C04B40/00 ,  C04B24/22 ,  C04B24/24 ,  C04B103/40 ,  C04B103/52

Abstract: 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.

公开(公告)号：US20150080500A1

公开(公告)日：2015-03-19

申请号：US14390703

申请日：2013-04-03

Applicant: Construction Research & Technology, GmbH

Inventor： Frank Dierschke ,  Torben Gädt ,  Uwe Gehrig ,  Michael Melchart ,  Mario Vierle ,  Peter Schwesig ,  Klaus Hartl ,  Madalina Andreea Stefan ,  Tatiana Mitkina ,  Maxim Pulkin

IPC: C04B24/30 ,  C08G16/02

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。