| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cement-based composition recycling concrete particles as a cement additive, wherein the concrete particles are obtained on the recovery of aggregates from waste concrete. SOLUTION: This cement-based composition is produced by adding particles to Portland cement. The particles are generated on the recovery of aggregates from concrete waste materials. Thus, the useful resource particles generating as a waste material on the recovery of the aggregates can be recycled as a cement additive. When heated particles are added to low heated Portland cement or middle heated Portland cement, the strength of obtained mortar or concrete can be enhanced, while controlling hydration heat in an early curing time.</p> |
