Role of the surface morphology in cement gel growth dynamics: A combined nuclear magnetic resonance and atomic force microscopy study

被引:19
作者
Papavassiliou, G [1 ]
Fardis, M [1 ]
Laganas, E [1 ]
Leventis, A [1 ]
Hassanien, A [1 ]
Milia, F [1 ]
Papageorgiou, A [1 ]
Chaniotakis, E [1 ]
机构
[1] TITAN CEMENT CO SA,R&D DEPT,KAMARI PLANT VIOTIAS,ELEFSIS 19200,GREECE
关键词
D O I
10.1063/1.365836
中图分类号
O59 [应用物理学];
学科分类号
摘要
H-1 nuclear magnetic resonance and atomic force microscopy have been correlated in-order to exploit the relation between the microscopic morphological properties and the growth dynamics of cement gels during hydration. Studies in a number of samples with different hydration kinetics show that consideration of percolation, gel surface roughness, and related scaling properties is necessary for a thorough understanding of cement hydration kinetics. It is further shown that, at late hydration times, the hydration rate is highly correlated with the cement gel surface roughness exponent chi. A model based on a random walk on a three-dimensional network of rough micropores is proposed in order to explain this effect. (C) 1997 American Institute of Physics.
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收藏
页码:449 / 452
页数:4
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