| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a cement composition containing cement, silica fume and fibrous magnesium oxysulfate, having high fluidity and proper viscosity and improved in resistance to separation of material. SOLUTION: This cement composition is obtained by blending 100 pts.wt. cement with 1.0-4.0 pts.wt. silica fume having 0.05-0.2μm average particle diameter and 1.0-3.5 pts.wt. fibrous magnesium oxysulfate having 0.5-1μm fiber diameter, 10-50μm fiber length and 20-50 aspect ratio.</p> |
