| 摘要 |
PURPOSE: To provide a method for producing a high-strength inorganic foam using new inexpensive and readily obtainable raw materials by blending (weath ered) granite fine powder with kaolinite-containing mineral fine powder and blowing agent fine powder, molding and baking. CONSTITUTION: A mixture is obtained by uniformly blending 100 pts.wt. of (weathered) granite fine powder ground into <=30μm average particle diameter with 5-50 pts.wt. of kaolinite-containing mineral fine powder having <=20μm average particle diameter and 0.1-3 pts.wt. of blowing agent fine powder and optionally further adding a molding auxiliary and pigment to the blend. The mixture is molded and baked at 1,050 to 1,250 deg.C.
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