公开(公告)号：EP4330208A1

公开(公告)日：2024-03-06

申请号：EP22726659.0

申请日：2022-04-29

申请人： Ecocem Materials Limited ,  Ecole Normale Supérieure Paris-Saclay ,  Centre National de la Recherche Scientifique (CNRS) ,  Institut National des Sciences Appliquées de Toulouse ,  Université Paul Sabatier Toulouse III

发明人： MYRTJA, Erisa ,  KIIASHKO, Artur ,  FROUIN, Laurent ,  CYR, Martin ,  CHAOUCHE, Mohend

IPC分类号： C04B28/08 ,  C04B40/06

公开(公告)号：EP4082988A1

公开(公告)日：2022-11-02

申请号：EP21305566.8

申请日：2021-04-30

申请人： Ecocem Materials Limited ,  École Normale Supérieure Paris-Saclay ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS) ,  Institut National des Sciences Appliquées de Toulouse ,  Université Paul Sabatier Toulouse III

发明人： MYRTJA, Erisa ,  KIIASHKO, Artur ,  FROUIN, Laurent ,  CYR, Martin ,  CHAOUCHE, Mohend

IPC分类号： C04B28/08 ,  C04B40/06

摘要： The above objectives are reached thanks to a binder composition comprising:
a. between 1% and 30% in dry weight of at least one lime source;
b. between 5% and 75% in dry weight of ground granulated blast furnace slag;
c. between 20% and 90% in dry weight of at least one filler;
d. between 0.1% and 5% in dry weight, relative to the total weight of components a, b and c, of SO 3 ;
e. between 0.1% and 1% in dry weight, relative to the total weight of components a, b and c, of at least one water reducer polymer;
f. between 0% and 2% in dry weight, relative to the total weight of components a, b and c, of at least one accelerator different from d.;
said ground granulated blast furnace slag being a particles mixture of:
- between 10% and 100% in weight, in respect with the total weight of the ground granulated blast furnace slag, of particles having a d 50 greater than or equal to 1µm and strictly less than 5µm,
- between 0% and 90% in weight, in respect with the total weight of the ground granulated blast furnace slag, of particles having a d 50 greater than or equal to 5µm and preferably less than 15µm, said filler being a particles mixture of :
- between 10% and 90% in weight, in respect with the total weight of the filler, of particles having a d 50 greater than or equal to 0,05µnn and strictly less than 8µm, and
- between 10% and 90% in weight, in respect with the total weight of the filler, of particles having a d 50 greater than or equal to 8µm and strictly less than 200µm.

公开(公告)号：EP4311814A1

公开(公告)日：2024-01-31

申请号：EP22306153.2

申请日：2022-07-29

申请人： Ecocem Materials Limited ,  Ecole Normale Supérieure Paris-Saclay ,  Centre National de la Recherche Scientifique (CNRS)

发明人： FROUIN, Laurent ,  ALFANI, Roberta ,  MYRTJA, Erisa ,  CRUICKSHANK, Matthew ,  CHAOUCHE, Mohend

IPC分类号： C04B24/26 ,  C04B28/16 ,  C04B103/30

摘要： Process for preparing a wet concrete composition comprising a step of mixing with water:
A. at least one aggregate,
B. a binder system, in an amount of 400 Kg per m 3 of the wet concrete composition or less, preferably less than 370 Kg per m 3 of the wet concrete composition,
C. an admixture formulation,

the binder system (B.) being prepared before the mixing step or in situ during the mixing step, from at least some of the different components of the binder system; said components being taken separately and/or under the form of premix(es),
wherein the binder system (B.) comprises:
(B1) between 1% and 34% in dry weight of at least one lime source;
(B2) between 5% and 75% in dry weight of ground granulated blast furnace slag;
(B3) between 21% and 90% in dry weight of at least one filler;
(B4) Between 0.1% and 5% in dry weight, relative to the total weight of components B1, B2 and B3, of SO 3 ;
wherein said admixture formulation (C.) comprises:
(C3) at least one water reducing polymer;
(C4) optionally a wetting agent and/or a surfactant;

wherein the step of mixing with water is carried out with a water to binder system (B.) weight ratio comprised between 0.2 and 0.4, and more advantageously between 0,25 and 0,35.