| 摘要 |
PROBLEM TO BE SOLVED: To provide an inorganic board largely improved in dimensional stability and anti-freezing and melting properties. SOLUTION: When the inorganic board is manufactured by forming a mat in paper making manner by dispersing in water a raw material mixture which contains a cement-based inorganic material, a siliceous matter-containing material, a wooden reinforcing material and a mica in water, and pressing the mat formed like mentioned above and curing it at a temperature of 150°C or higher in an autoclave; the hardening reaction of the inorganic board is promoted by setting the mass ratio of the cement-based inorganic material to the siliceous matter-containing material in the range of 35:65 to 45:55, and thereby, the dimensional stability is further improved and furthermore, the anti-freezing and melting properties are made better. COPYRIGHT: (C)2006,JPO&NCIPI |
