| abstract |
WHICH INCLUDES: a) FROM 30% TO 60% OF ALUMINUM SULPHATE; b) FROM 0.1% TO 15% OF AT LEAST ONE ALKANOLAMINE AND ONE ALKYLEN-DIAMINE or TRIAMINE; c) FROM 0.2% TO 8% HYDROFLUORIC ACID; d) UP TO 15% OF AT LEAST ONE OF SODIUM, POTASSIUM HYDROXIDE, CARBONATE OR SULPHATE. OF LITHIUM, AND OF MAGNESIUM; e) UP TO 15% OF C1-C10 ALIPHATIC MONO- AND DICARBOXYL ACIDS AND THEIR METALLIC SALTS; f) UP TO 15% ALUMINUM HYDROXIDE; AND, g) UP TO 5% OF AT LEAST ONE OF PHOSPHORIC ACID AND PHOSPHORUS ACID. IN ADDITION, IT REFERS TO A HARDENED CEMENT LAYER APPLIED TO A SUBSTRATE BY PROJECTION BY MEANS OF A PROJECTION NOZZLE, SAID ACCELERATOR HAVING BEEN ADDED IN THE NOZZLE |