Durability of cement-based materials in simulated radioactive liquid waste: Effect of phosphate, sulphate, and chloride ions

被引：10
|
作者：
Guerrero, A [1 ]
Hernandez, S [1 ]
Goni, S [1 ]
机构：
[1] Inst construct Sci Eduardo Torroja, CSIC, Madrid 28033, Spain
来源：
JOURNAL OF MATERIALS RESEARCH | 1998年 / 13卷 / 08期
关键词：
D O I：
10.1557/JMR.1998.0301
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The durability of a specific backfilling pozzolanic cement mortar, which is employed in Spain, in concrete containers for the storage of low (LLW) and medium level wastes (MLW), has been studied by means of the Koch-Steinegger test at the temperature of 40 degrees C during a period of 365 days. Mortar samples were immersed in a simulated radioactive liquid waste very rich in sulphate (0.68 M), phosphate (0.89 M), and chloride (0.51 M) ions. The changes of the microstructure were followed by x-ray diffraction (XRD), mercury intrusion porosimetry (MIP), and scanning electron microscopy (SEM). Pore solution was extracted at different periods in order to see the changes of the chemical composition caused by the diffusion of those ions inside the microstructure.
引用
收藏
页码：2151 / 2160
页数：10
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