期刊
GEOTECHNIQUE
卷 64, 期 8, 页码 673-679出版社
ICE PUBLISHING
DOI: 10.1680/geot.14.T.012
关键词
clays; ground improvement; laboratory tests; mineralogy; soil stabilisation
资金
- National Science and Technology Pillar Program, People's Republic of China [2012BAJ01B02-01]
Reactive magnesia (MgO) and carbide slag (CS) were used to activate ground granulated blastfurnace slag (GGBS) to stabilise a marine soft clay, and the stabilised clays were subjected to accelerated sodium sulfate attack. The results indicated MgO-GGBS stabilised clay was nearly inert to this sodium sulfate solution. The resistance of CS-GGBS stabilised clay to sodium sulfate attack was lower than that of MgO-GGBS stabilised clay, but higher than that of Portland cement stabilised clay. Unlike CS-GGBS stabilised clay, there was no calcium aluminate hydrate or alumino-ferrite monosulfate produced in MgO-GGBS stabilised clay, and hence no ettringite, which would cause deterioration, formed when exposed to sodium sulfate.
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