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| 摘要: |
| 采用压汞测孔仪(MIP)、扫描电镜(SEM)和X射线衍射(XRD)等测试技术,研究了石灰石粉对复合胶凝材料水化特性的影响.结果表明:与掺入粉煤灰相比,掺入石灰石粉也可减少复合胶凝材料的需水量,同时使胶砂强度有所降低,但其对胶砂后期强度的影响会逐步减小;石灰石粉和粉煤灰均能降低复合胶凝材料的水化热;石灰石粉对胶砂孔结构具有显著改善作用,能细化砂浆孔隙;随着龄期的延长,石灰石粉和粉煤灰都会发生水化,石灰石粉后期将水化生成水化碳铝酸钙. |
| 关键词: 石灰石粉 复合胶凝材料 水化特性 粉煤灰 |
| DOI： |
| 分类号:TU528.041 |
| 基金项目:高等学校博士学科点专项科研基金资助项目(200804861060);;中建股份科技研发课题(CSCEC-2009-Z-19) |
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| Influence of Limestone Powder on the Hydration Characteristic of Complex Binder |
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LIU Shu-hua
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| Abstract: |
| The influence of limestone powder on the hydration characteristic of complex binder was studied by using mercury intrusion porosimetry(MIP),scanning electron microscopy(SEM) and X-ray diffraction(XRD) techniques.Testing results show that similar to fly ash,limestone powder will decrease the water requirement of complex binder.The strength of mortar will be decreased on the addition of limestone,however,the effect of decrease will become less at later period.Limestone powder and fly ash will also decrease th... |
| Key words: limestone powder complex binder hydration characteristic fly ash |
