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

Authors :
Morandeau, Antoine E.
Fitts, Jeffrey P.
Lee, Hang D.
Shubeita, Samir M.
Feldman, Leonard C.
Gustafsson, Torgny
White, Claire E.
Source :
Cement & Concrete Research. Jan2016, Vol. 79, p45-48. 4p.
Publication Year :
2016

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. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00088846
Volume :
79
Database :
Academic Search Index
Journal :
Cement & Concrete Research
Publication Type :
Academic Journal
Accession number :
111295542
Full Text :
https://doi.org/10.1016/j.cemconres.2015.07.007