The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2025
Filed:
Aug. 25, 2021
Construction Research & Technology Gmbh, Trostberg, DE;
Klaus Lorenz, Trostberg, DE;
Wolfgang Seidl, Trostberg, DE;
Tatiana Mitkina, Trostberg, DE;
Sabine Himmelein, Trostberg, DE;
Peter Schwesig, Trostberg, DE;
Massimo Bandiera, Trostberg, DE;
Bernhard Sachsenhauser, Trostberg, DE;
Farra Ramzi, Trostberg, DE;
Davide Carnelli, Trostberg, DE;
Johanna Parks, Trostberg, DE;
Kai Steffen Weldert, Trostberg, DE;
Matthias Klein, Trostberg, DE;
Jasveer Ramroo Beni, Dubai, AE;
CONSTRUCTION RESEARCH & TECHNOLOGY GMBH, Trostberg, DE;
Abstract
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; 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), 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.