| 摘要 |
<p>PURPOSE: A cement composition is provided to enhance compressive strength and to ensure improved fluidity. CONSTITUTION: A cement composition contains 90-99.99 weight parts of Portland cement and 0.01-10 weight parts of blast furnace air-cooled slag. A method for preparing the cement composition comprises: a step of crushing and selecting the blast furnace air-cooled slag; a step of pulverizing the crushed and selected slag in 3,000-6,000 cm^2/g; a step of forming fine powder of the slag; and a step of mixing the fine powder and Portland cement.</p> |
