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《Journal of Chinese Electron Microscopy Society》 2008-04
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Morphological characteristics of hardened paste of complex binder containing high volume of slag

WANG Qiang,YAN Pei-yu~*(Key Laboratory of Structural Engineering and Vibration of Education Ministry,Tsinghua University,Beijing 100084,China)  
The relationship between hydrability of slag in complex binder and morphological characteristics of hardened binder paste was studied by observation of morphology of hardened paste of complex binder containing high volume of slag at different ages using SEM.The results show that complex binder containing high volume of slag possessed looser paste structure than that of cement at early age,while on 28 d it became very dense.At early age of hydration,particles of slag were wrapped by hydration products of cement,the interface between which and cement paste was weak.At later period of hydration,hydration products of slag were tightly combined with hydration products of cement,and the aforesaid interface became strong.
【Fund】: 国家自然科学基金资助项目(No.50772053)~~
【CateGory Index】: TU528
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