- 張守祺1,王棟民1,路來軍2,王 敏2,劉華勛2,饒文治2
2009年第6期
摘要
引用本文
摘 要:對分別摻入活化多孔硅粉和硅灰的C60自密實混凝土的含氣量、凝結時間、坍落度保持能力和抗壓強度等進行了對比試驗研究,得出了多孔硅粉對新拌自密實混凝土性能的若干影響規律,并分析了其作用機理。對比分析結果表明,多孔硅粉對新拌自密實混凝土性能的改善作用略優于硅灰,是一種具有高早強性的優質高活性礦物摻合料。
Abstract: The C60 self-compacting concrete made by respectively adding the porous silica powder or silica fume were compared through the tests, such as slump loss, air content, setting time and compressive strength, and by which the laws and mechanisms of the effect of porous silica powder on the properties of self-compacting concrete were obtained. The results also indicate that the improvement of concrete performances by silica powder will be better than that of by silica fume, and that will demonstrate it is a kind of high activity mineral mixture with high-early-strength.