Aqueous leachability of metakaolin-based geopolymers with molar ratios of Si/Al=1.5-4

被引：77

作者：

Aly, Z. ^{[1
]}

Vance, E. R. ^{[1
]}

Perera, D. S. ^{[1
]}

Hanna, J. V. ^{[1
]}

Griffith, C. S. ^{[1
]}

Davis, J. ^{[1
]}

Durce, D. ^{[1
]}

机构：

[1] Australian Nucl Sci & Technol Org, Inst Mat Engn, Menai, NSW 2234, Australia

来源：

JOURNAL OF NUCLEAR MATERIALS | 2008年 / 378卷 / 02期

关键词：

D O I：

10.1016/j.jnucmat.2008.06.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The leachability in water of metakaolin based geopolymers with molar ratios of Na/Al = 1 and Si/Al = 1.5-4.0 has been investigated in order to optimise the composition for the immobilisation of nuclear waste. Formulations with Si/Al of around 2 are the most suitable using the ASTM/PCT leach test method. The variability of the leach results is discussed with reference to the microstructure, compressive strength and the degree of polymerisation of the geopolymers as observed here by solid state nuclear magnetic resonance, XRD and infrared measurements. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.

引用

页码：172 / 179

页数：8

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