| 摘要 |
PCT No. PCT/SE93/01049 Sec. 371 Date Oct. 16, 1995 Sec. 102(e) Date Oct. 16, 1995 PCT Filed Dec. 3, 1993 PCT Pub. No. WO94/13596 PCT Pub. Date Jun. 23, 1994A method of continued grinding of cement is disclosed in order to obtain cement with a high specific surface and/or a steep grain size distribution curve. The grinding is performed in a mill with agitated grinding medium from a specific surface of 300-400 m2/kg (Blaine) to a specific surface of up to 1,200 m2/kg (Blaine) and with a particle size distribution such that about 80% of the particles pass a sieve opening with a size up to about 25 microns, using grinding bodies with an average size within the interval of 2 to 15 mm. |
