Calcium silicate board and method of manufacturing same

摘要

PCT No. PCT/JP96/01757 Sec. 371 Date Feb. 18, 1998 Sec. 102(e) Date Feb. 18, 1998 PCT Filed Jun. 25, 1996 PCT Pub. No. WO97/49645 PCT Pub. Date Dec. 31, 1997A method of manufacturing a calcium silicate board having a bulk specific gravity of approximately 0.5 to 0.8, which method achieves a decrease in the bulk specific gravity and an increase in the matrix strength of the board without impairing productivity, and the calcium silicate board obtained by this method. The method is characterized in that a material slurry comprising 5 to 30 wt % of calcium silicate hydrate slurry as a solid component, 17 to 50 wt % of calcareous material, 13 to 45 wt % of silica containing material, 2 to 8 wt % of fiber material, and 5 to 40 wt % of inorganic fillers is formed through conventional processes and the obtained molded body is subjected to a hydrothermal reaction in a pressure container.