| 摘要 |
<p>A bearing wall board is provided to be superior in strength, fire retardancy, workability, dimensional stability, freezing resistance, water resistance, or vibration resistance. A bearing wall board includes 20-60wt% of a cement-based hydraulic material, 6-20wt% of a fiber reinforcement material, 3-18wt% of lightweight aggregate, and 0.1-2.0wt% of a saturated carboxylic acid, based on the total solids. The fiber reinforcement material comprises beaten fiber having a freeness of 650 ml or less, and unbeaten fiber. The saturated carboxylic acid is a stearate-based or succinate-based saturated carboxylic acid.</p> |
