The pozzolanic properties of inorganic and organomodified nano-montmorillonite dispersions

Styliani Papatzani, Efstratios Badogiannis, Kevin Paine

Research output: Contribution to journalArticle

11 Citations (Scopus)
58 Downloads (Pure)

Abstract

The pozzolanic potentials of three non-thermally treated, nano-montmorillonite (NMt) dispersions were investigated by a new method involving the analysis of NMt/lime putty pastes via TGA/dTG and XRD crystallographic and semi-quantitative analysis. The criterion conceived was validated at eight days and eight months and was additionally verified via the Chapelle method. The inorganic NMt dispersion showed the most pronounced pozzolanic behaviour promoting Ca(OH) 2 consumption towards calcium silicate/aluminate hydrates formation and binding behaviour. The two organomodified NMt dispersions exhibited pozzolanicity increasing with time. The results can pave the way for advances in cement science and restoration mortars development for historical structures rehabilitation, where low CO 2-footprint, natural inorganic materials are a prerequisite.

Original languageEnglish
Pages (from-to)299-316
Number of pages18
JournalConstruction and Building Materials
Volume167
Early online date13 Feb 2018
DOIs
Publication statusPublished - 10 Apr 2018

Keywords

  • Chapelle test
  • Inorganic and organomodified nano-montmorillonite dispersions
  • Lime putty pastes
  • Non-calcined
  • Pozzolanic reactions
  • TGA/dTG
  • XRD

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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