| 摘要 |
<p>PURPOSE: A cement composition is provided, to improve the workability and the compression strength of cement and to reduce the manufacturing cost by employing a cheap blast furnace slag cement. CONSTITUTION: The cement composition comprises the cement source powder; and 50-70 wt% of the blast furnace slag cement powder. Preferably the cement composition comprises further 50-60 parts by weight of water, 500-600 parts by weight of aggregate and 0.2-0.5 parts by weight of a chemical admixture as a highly efficient water-reducing agent based on the total weight of the cement composition.</p> |
