A positron annihilation study on the hydration of cement pastes

被引：2
|
作者：
Consolati, G. [1 ]
Quasso, F. [1 ]
机构：
[1] Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2007年 / 101卷 / 2-3期
关键词：
composite materials; positron annihilation spectroscopy; ageing;
D O I：
10.1016/j.matchemphys.2006.05.001
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Positron annihilation lifetime spectroscopy experiments were carried out in various ordinary Portland cement pastes, in an attempt to monitor the porosity of the pastes. It is found that positronium intensity is well correlated to the time evolution of the total porosity and it is influenced by the water-to-cement ratio. This parameter is also sensitive to the delayed hydration process induced by adding methanol to the water-cement mixture. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：264 / 268
页数：5
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