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KALINA, L. BÍLEK, V. NOVOTNÝ, R.
Original Title
Influence of alkali ions on the efficiency of shrinkage reduction by polypropylene glycol in alkali activated systems
Type
journal article in Web of Science
Language
English
Original Abstract
Alkali-activated materials, especially when activated by water glass, exhibit substantial drying shrinkage that hinders their broader industrial application. The effect of shrinkage-reducing admixtures (SRA), based on polypropylene glycol, on drying shrinkage of alkali-activated blast furnace slag (BFS) mortars was examined. The determination of SRA efficiency and the influence of potassium alkali activators with varying silicate modulus on drying shrinkage characteristics were studied. It was observed that a high amount of alkalis positively affected the effect of SRA. The higher the amount of alkalis was, the lower was the drying shrinkage. The paper further discusses and underlines the role of the amount of alkali ions on the properties of alkali-activated BFS systems.
Keywords
admixtures, alkali-activated cements, shrinkage
Authors
KALINA, L.; BÍLEK, V.; NOVOTNÝ, R.
Released
1. 6. 2018
Publisher
ICE Publishing
ISBN
0951-7197
Periodical
Advances in Cement Research
Year of study
1
Number
30
State
United Kingdom of Great Britain and Northern Ireland
Pages from
Pages to
5
Pages count
URL
https://www.icevirtuallibrary.com/doi/abs/10.1680/jadcr.17.00139
Full text in the Digital Library
http://hdl.handle.net/11012/84146
BibTex
@article{BUT140910, author="Lukáš {Kalina} and Vlastimil {Bílek} and Radoslav {Novotný}", title="Influence of alkali ions on the efficiency of shrinkage reduction by polypropylene glycol in alkali activated systems", journal="Advances in Cement Research", year="2018", volume="1", number="30", pages="1--5", doi="10.1680/jadcr.17.00139", issn="0951-7197", url="https://www.icevirtuallibrary.com/doi/abs/10.1680/jadcr.17.00139" }