Publication detail

Decalcification resistance of various alkaliactivated materials

HRUBÝ, P. BÍLEK, V. TOPOLÁŘ, L. KALINA, L. MARKO, M. ŠOUKAL, F. DVOŘÁK, R. HERČÍK, T.

Original Title

Decalcification resistance of various alkaliactivated materials

Type

conference paper

Language

English

Original Abstract

The resistance of alkali-activated materials (AAMs) to degradation processes, particularly the decalcification, was studied in this paper. The ground granulated blast furnace slag was alkali-activated using various activators with the same activator dosage 6% Na2O by slag weight (sodium hydroxide, sodium waterglass and sodium carbonate) and subjected to testing of decalcification resistance (immersion in 6M NH4NO3) for 84 days. The reference samples were stored in water. The progress of degradation was studied using the phenolphthalein technique, mechanical properties testing (compressive and flexural strength), and dilatometry analysis or weight measurements. The results obtained were compared to the CEM III/A 32.5R. The significant loss of mass along with the deterioration of mechanical properties were observed for all binder types, still some of the AAMs showed better durability than the cementitious one.

Keywords

Alkali-activated material, decalcification, degradation, resistance

Authors

HRUBÝ, P.; BÍLEK, V.; TOPOLÁŘ, L.; KALINA, L.; MARKO, M.; ŠOUKAL, F.; DVOŘÁK, R.; HERČÍK, T.

Released

29. 9. 2021

Publisher

IOP Publishing

Location

Bristol

ISBN

1757-8981

Periodical

IOP Conference Series: Materials Science and Engineering

Year of study

1205

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

8

Pages count

8

URL

https://iopscience.iop.org/article/10.1088/1757-899X/1205/1/012015

Full text in the Digital Library

http://hdl.handle.net/11012/203343

BibTex

@inproceedings{BUT175417,
  author="Petr {Hrubý} and Vlastimil {Bílek} and Libor {Topolář} and Lukáš {Kalina} and Michal {Marko} and František {Šoukal} and Richard {Dvořák} and Tomáš {Herčík}",
  title="Decalcification resistance of various alkaliactivated materials",
  booktitle="IOP Conference Series: Materials Science and Engineering",
  year="2021",
  journal="IOP Conference Series: Materials Science and Engineering",
  volume="1205",
  number="1",
  pages="1--8",
  publisher="IOP Publishing",
  address="Bristol",
  doi="10.1088/1757-899X/1205/1/012015",
  issn="1757-8981",
  url="https://iopscience.iop.org/article/10.1088/1757-899X/1205/1/012015"
}