Publication detail

Influence of alkali ions on the efficiency of shrinkage reduction by polypropylene glycol in alkali activated systems

KALINA, L. BÍLEK, V. NOVOTNÝ, R.

Original Title

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

Number

State

United Kingdom of Great Britain and Northern Ireland

Pages from

Pages to

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"
}