Ageing and collapse of Bentonite gels - Effects of Mg(II), Ca(II) and Ba(II) ions

Pek Ing Au, P. Pillai, Yee-Kwong Leong

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

© 2015 Elsevier B.V. The ageing and stability behaviour of Bentonite slurries were evaluated under the influence of Mg2+, Ca2+ and Ba2+ ions at concentration ranging from 0.005 to 1M. Stable gels were formed at low metal ion concentration of +, K+ and Cs+ ions. Also the settling layer of divalent metal ion weakened gels did not consolidate as effectively. The stability time of these weakened gels was found to decrease with increasing hydration bond length of the divalent metal ions, i.e. Ba(II)0.02M Mg2+, Ca2+ and Ba2+.
Original languageEnglish
Pages (from-to)141-150
JournalApplied Clay Science
Volume114
DOIs
Publication statusPublished - 2015

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