Detail publikačního výsledku

Resistance of alkali-activated blast furnace slag to acids

HRUBÝ, P.; BÍLEK, V.; TOPOLÁŘ, L.; KALINA, L.; ILIUSHCHENKO, V.; KOPLÍK, J.; MÁSILKO, J.; ŠOUKAL, F.

Originální název

Resistance of alkali-activated blast furnace slag to acids

Anglický název

Resistance of alkali-activated blast furnace slag to acids

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

In this paper, the resistance of alkali-activated blast furnace slag to degradation processes caused by the action of various acids was studied. The ground granulated blast furnace slag was alkali-activated using sodium hydroxide in 6% Na2O dosage by the slag weight and subjected to testing of acid resistance in both organic and inorganic acidic solutions (pH ≈ 3) for 84 days. Citric, acetic, hydrochloric, and sulphuric acids were used for these purposes. The reference samples were stored in water. The progress of degradation was studied using the phenolphthalein technique, compressive strength testing, and weight measurements. Moreover, the SEM-EDX was used for the characterization of the degradation processes and microstructure changes. The degradation of alkali-activated blast furnace slag occurred in both organic and inorganic acids; however, the action of organic acids appears to be much more deteriorating. The decrease in compressive strength of about 50% and 60% was observed for acetic and citric acid, while only of 32% and 23% in sulphuric and hydrochloric, respectively.

Anglický abstrakt

In this paper, the resistance of alkali-activated blast furnace slag to degradation processes caused by the action of various acids was studied. The ground granulated blast furnace slag was alkali-activated using sodium hydroxide in 6% Na2O dosage by the slag weight and subjected to testing of acid resistance in both organic and inorganic acidic solutions (pH ≈ 3) for 84 days. Citric, acetic, hydrochloric, and sulphuric acids were used for these purposes. The reference samples were stored in water. The progress of degradation was studied using the phenolphthalein technique, compressive strength testing, and weight measurements. Moreover, the SEM-EDX was used for the characterization of the degradation processes and microstructure changes. The degradation of alkali-activated blast furnace slag occurred in both organic and inorganic acids; however, the action of organic acids appears to be much more deteriorating. The decrease in compressive strength of about 50% and 60% was observed for acetic and citric acid, while only of 32% and 23% in sulphuric and hydrochloric, respectively.

Klíčová slova

Alkali-activated materials, blast furnace slag, degradation, acid, decalcification

Klíčová slova v angličtině

Alkali-activated materials, blast furnace slag, degradation, acid, decalcification

Autoři

HRUBÝ, P.; BÍLEK, V.; TOPOLÁŘ, L.; KALINA, L.; ILIUSHCHENKO, V.; KOPLÍK, J.; MÁSILKO, J.; ŠOUKAL, F.

Rok RIV

2023

Vydáno

03.10.2022

Nakladatel

IOP Publishing

Místo

Telč

Kniha

IOP Conference Series: Materials Science and Engineering

ISSN

1742-6596

Periodikum

Journal of Physics: Conference Series

Svazek

2341

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

8

Strany počet

8

URL

https://iopscience.iop.org/article/10.1088/1742-6596/2341/1/012002

Plný text v Digitální knihovně

http://hdl.handle.net/

BibTex

@inproceedings{BUT180520,
  author="Petr {Hrubý} and Vlastimil {Bílek} and Libor {Topolář} and Lukáš {Kalina} and Valeriia {Hrubá} and Jan {Koplík} and Jiří {Másilko} and František {Šoukal}",
  title="Resistance of alkali-activated blast furnace slag to acids",
  booktitle="IOP Conference Series: Materials Science and Engineering",
  year="2022",
  journal="Journal of Physics: Conference Series",
  volume="2341",
  pages="1--8",
  publisher="IOP Publishing",
  address="Telč",
  doi="10.1088/1742-6596/2341/1/01200",
  issn="1742-6596",
  url="https://iopscience.iop.org/article/10.1088/1742-6596/2341/1/012002"
}