| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a low-alkalinity and high-strength cement composition that has excellent strength, and durability and whiteness. SOLUTION: This low-alkalinity high-strength cement composition comprises 30-87.5 wt.% of blast furnace slag with a fineness of 8,000-30,000 cm2/g, 5-40 wt.% of high-early-strength cement, 2.5-10 wt.% of at least one selected from gypsum and aluminum sulfate and 5-20 wt.% of siliceous material where the siliceous material is silica fume and contains glass fibers.</p> |
