公开(公告)号：EP4219423A1

公开(公告)日：2023-08-02

申请号：EP22305083.2

申请日：2022-01-27

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 ,  CHAOUCHE, Mohend ,  PLANK, Johann ,  LEI, Lei

IPC分类号： C04B24/16 ,  C04B24/24 ,  C04B24/26 ,  C04B28/08 ,  C04B103/30

摘要： The invention concerns a ready-mix concrete or mortar, or precast concrete composition, devoted in particular to building construction and civil engineering works, comprising at least one aggregate (A), a binder composition (B), at least one alkali sulfate activator (C), water (D) and at least one water reducing polymer (E), wherein the binder composition (B) comprises:
(b1)Ground Granulated Blast Furnace Slag (GGBS),
(b2) optionally at least one hydraulic binder other than GGBS, according to standard EN 197-1 and EN 197-5,
(b3) optionally one or more supplementary cementitious materials, and
(b4) optionally one or more filler materials,
wherein the water reducing polymer (E) is a copolymer comprising the following monomeric units:
- units A

- units B

- units C

- units D

wherein: - - - represents a bonding site of a monomeric unit
the quantity of monomeric units A is between 0 and 40 mol%,
the quantity of monomeric units B is between 25 and 95 mol%,
the quantity of monomeric units C is between 5 and 50 mol%,
the quantity of monomeric units D is between 0 and 25 mol%, and
wherein said ready-mix concrete or mortar, or precast concrete composition is classified in one of the classes S3, S4 and S5 according to standard NF EN 206.