| 摘要 |
<p>PURPOSE:To obtain a cement composition having high humidity conditioning properties and excellent in nail retaining force by blending cement, a light aggregate organic fiber and specified fly ash. CONSTITUTION:This cement composition contains cement, a light fine aggregate, organic fiber and fly ash. As the above fly ash, the one formed by the combustion of coal and obtd. by the classification into <=20mu particle size without being crushed is used. As for the above fly ash, for using the fly ash formed by the combustion of coal at it is without being crushed, only the ones having a well-regulated shape as well it remains spherical and having <=20mu particles size on classifying are added, so that the fly ash is uniformly distributed around the light fine aggregate. Thus, the direct contact and entanglement of organic fiber with the light fine aggregate having rough surface can be reduced as well as, by the smooth surface of the fly ash, the dispersibility of the organic fiber can be increased.</p> |
