EP 4118051 A1 20230118 - SLAG-BASED HYDRAULIC BINDER, DRY MORTAR COMPOSITION COMPRISING SAME AND SYSTEM FOR ACTIVATING A SLAG-BASED BINDER
Title (en)
SLAG-BASED HYDRAULIC BINDER, DRY MORTAR COMPOSITION COMPRISING SAME AND SYSTEM FOR ACTIVATING A SLAG-BASED BINDER
Title (de)
SCHLACKENBASIERTES HYDRAULISCHES BINDEMITTEL, TROCKENMÖRTELZUSAMMENSETZUNG DAMIT UND SYSTEM ZUR AKTIVIERUNG EINES SCHLACKENBASIERTEN BINDEMITTELS
Title (fr)
LIANT HYDRAULIQUE À BASE DE LAITIER, COMPOSITION SÈCHE DE MORTIER COMPRENANT CE LIANT ET SYSTÈME D'ACTIVATION D'UN LIANT À BASE DE LAITIER
Publication
Application
Priority
- FR 2002491 A 20200313
- EP 2021055660 W 20210305
Abstract (en)
[origin: WO2021180594A1] The aim of the invention is to provide a hydraulic binder based on ground granulated blast-furnace slag, devoid of Portland cement, which enables improved setting and hardening. For this purpose, the invention concerns a hydraulic binder comprising (in % by weight on a dry basis): A. at least 50 of at least one ground granulated blast-furnace slag; B. more than 5 of at least one calcium aluminate cement and/or of at least one calcium sulfoaluminate cement; C. more than 5 of at least one source of sulfate ions; D. between 1 and 5 of Ca(OH)2 and/or of Portland cement; E. between 0.01 and 1 of at least one alkali metal carbonate, preferably Li2CO3; F. and at least one alkalifying reagent consisting of at least one alkali metal carbonate and/or bicarbonate, different from E, (NaHCO3; Na2CO3; K2CO3 and mixtures thereof); with the conditions whereby: (i) the amount of C is sufficient that the sulfate ions of C can react with B and with A; (ii) the amount of F is sufficient that reaction thereof with component D in the presence of water brings the pH of the wet formulation obtained to a value of not less than 12, for a water-to-mortar mixing rate of between 10 and 35 % by weight.
IPC 8 full level
C04B 7/17 (2006.01); C04B 7/19 (2006.01); C04B 7/21 (2006.01); C04B 28/06 (2006.01); C04B 28/08 (2006.01); C04B 28/14 (2006.01); C04B 28/16 (2006.01); C04B 40/00 (2006.01)
CPC (source: EP US)
C04B 7/1535 (2013.01 - US); C04B 7/17 (2013.01 - EP); C04B 7/19 (2013.01 - EP US); C04B 7/21 (2013.01 - EP); C04B 7/323 (2013.01 - US); C04B 11/30 (2013.01 - US); C04B 28/04 (2013.01 - US); C04B 28/06 (2013.01 - EP); C04B 28/065 (2013.01 - EP); C04B 28/082 (2013.01 - EP US); C04B 28/14 (2013.01 - EP US); C04B 28/16 (2013.01 - EP); C04B 40/0039 (2013.01 - EP); C04B 2111/00112 (2013.01 - EP); C04B 2111/00637 (2013.01 - EP); Y02P 40/10 (2015.11 - EP); Y02W 30/91 (2015.05 - EP)
Citation (search report)
See references of WO 2021180594A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2021180594 A1 20210916; AR 121536 A1 20220615; AU 2021234863 A1 20221006; BR 112022015178 A2 20221011; CA 3170961 A1 20210916; CL 2022002141 A1 20230331; CN 115151517 A 20221004; EP 4118051 A1 20230118; TW 202134200 A 20210916; US 2023142698 A1 20230511
DOCDB simple family (application)
EP 2021055660 W 20210305; AR P210100602 A 20210310; AU 2021234863 A 20210305; BR 112022015178 A 20210305; CA 3170961 A 20210305; CL 2022002141 A 20220809; CN 202180016219 A 20210305; EP 21709414 A 20210305; TW 110108898 A 20210312; US 202117911088 A 20210305