PROCESS FOR THE PREPARATION AND USE OF A CURABLE CEMENT COMPOSITION COMPRISING COAL FINS

摘要

PROCESS FOR THE PREPARATION AND USE OF A HARDENABLE CEMENT COMPOSITION CONTAINING CARBON FINES. /P P A HARDENABLE COMPOSITION IS PRODUCED BY MIXING 8 OF THE COAL WASTE WITH A POUZZOLANIC FINE ASH; THE MOISTURE CONTENT IS MONITORED 9 AND A PUMPABLE SUSPENSION IS PREPARED 10 THEN MIXED 13 WITH ANOTHER COMPOSITION, CONTAINING CEMENT, PUMPED IN 12. PUMPS 14 INTRODUCE THE COMPOSITION INTO BAGS 7 FOR SHORING OR PRESSING 3 FRONT PRESSING 3 . /P P APPLICATION: USE OF FINES FOR BACKFILLING COAL MINING ZONES.