Nanoscale heterogeneities in a fractured alkali-activated slag binder: A helium ion microscopy analysis

Antoine E. Morandeau, Jeffrey P. Fitts, Hang D. Lee, Samir M. Shubeita, Leonard C Feldman, Torgny Gustafsson, Claire E. White

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Helium ion microscopy is used to provide new insight into the nano- and microscale morphology of cleaved surfaces of alkali-activated slag (AAS), revealing that AAS contains several types of gel with varying surface morphologies after being subjected to D-drying. It is seen that the bulk C-(N)-A-S-H gel is globular in nature in a silicate-activated slag paste while the gel covering the slag particles is foil-like.

Original languageEnglish
Pages (from-to)45-48
Number of pages4
JournalCement and Concrete Research
Volume79
DOIs
Publication statusPublished - Jan 1 2016

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Keywords

  • Alkali activated cement
  • Drying
  • Granulated blast-furnace slag
  • Helium ion microscopy
  • Microstructure

ASJC Scopus subject areas

  • Materials Science(all)
  • Building and Construction

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