EP 4380905 A1 20240612 - USE OF A FRACTION OBTAINED FROM USED CONCRETE AS SAND FOR THE PREPARATION OF CONCRETE OR MORTAR
Title (en)
USE OF A FRACTION OBTAINED FROM USED CONCRETE AS SAND FOR THE PREPARATION OF CONCRETE OR MORTAR
Title (de)
VERWENDUNG EINER FRAKTION AUS GEBRAUCHTEM BETON ALS SAND FÜR DIE HERSTELLUNG VON BETON ODER MÖRTEL
Title (fr)
UTILISATION D'UNE FRACTION OBTENUE À PARTIR D'UN BÉTON USAGÉ COMME SABLE POUR LA PRÉPARATION DE BÉTON OU MORTIER
Publication
Application
Priority
- FR 2108400 A 20210802
- FR 2022051533 W 20220801
Abstract (en)
[origin: WO2023012423A1] The present invention relates to the use of a fraction having a particle size d10 greater than or equal to 150 µm, said fraction having a loss on ignition ranging from 3% to 30% and comprising: - from 20% to 80% of SiO2 ; - from 5% to 40% of CaO; - from 1% to 15% of Al2O3; and - from 0.5% to 4% of Fe2O3; as sand for the preparation of concrete or mortar.
IPC 8 full level
C04B 20/02 (2006.01)
CPC (source: EP)
C04B 20/023 (2013.01)
C-Set (source: EP)
Citation (search report)
See references of WO 2023012423A1
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)
FR 3125814 A1 20230203; EP 4380905 A1 20240612; WO 2023012423 A1 20230209
DOCDB simple family (application)
FR 2108400 A 20210802; EP 22758564 A 20220801; FR 2022051533 W 20220801