| abstract |
The invention relates to a process for inerting impurities in aggregates intended for the preparation of hydraulic or hydrocarbon compositions, comprising a step of adding to the composition or one of its constituents a cationic polymer corresponding to at least one derived from a natural or natural polymer selected from the group comprising dextrin (in particular yellow dextrin and white dextrin), chitosan, chitin, alginates, hemicellulose, pectin, polyols or proteins . |