Publication result detail

Effect of Na3PO4 on the Hydration Process of Alkali-Activated Blast Furnace Slag

KALINA, L.; BÍLEK, V.; NOVOTNÝ, R.; MONČEKOVÁ, M.; MÁSILKO, J.; KOPLÍK, J.

Original Title

Effect of Na3PO4 on the Hydration Process of Alkali-Activated Blast Furnace Slag

English Title

Effect of Na3PO4 on the Hydration Process of Alkali-Activated Blast Furnace Slag

Type

WoS Article

Original Abstract

In recent years, the utilization of different non-traditional cements and composites has been increasing. Alkali-activated cementitious materials, especially those based on the alkali activation of blast furnace slag, have considerable potential for utilization in the building industry. However, alkali-slag cements exhibit very rapid setting times, which are too short in some circumstances, and these materials cannot be used for some applications. Therefore, it is necessary to find a suitable retarding admixture. It was shown that the sodium phosphate additive has a strong effect on the heat evolution during alkali activation and effectively retards the hydration reaction of alkali-activated blast furnace slag. The aim of the work is the suggestion of a reaction mechanism of retardation mainly based on Raman and X‑ray photoelectron spectroscopy.

English abstract

In recent years, the utilization of different non-traditional cements and composites has been increasing. Alkali-activated cementitious materials, especially those based on the alkali activation of blast furnace slag, have considerable potential for utilization in the building industry. However, alkali-slag cements exhibit very rapid setting times, which are too short in some circumstances, and these materials cannot be used for some applications. Therefore, it is necessary to find a suitable retarding admixture. It was shown that the sodium phosphate additive has a strong effect on the heat evolution during alkali activation and effectively retards the hydration reaction of alkali-activated blast furnace slag. The aim of the work is the suggestion of a reaction mechanism of retardation mainly based on Raman and X‑ray photoelectron spectroscopy.

Keywords

alkali activated cement, granulated blast furnace slag, retardation

Key words in English

alkali activated cement, granulated blast furnace slag, retardation

Authors

KALINA, L.; BÍLEK, V.; NOVOTNÝ, R.; MONČEKOVÁ, M.; MÁSILKO, J.; KOPLÍK, J.

RIV year

2017

Released

20.05.2016

Publisher

MDPI

Location

Switzerland

ISBN

1996-1944

Periodical

Materials

Volume

9

Number

5

State

Swiss Confederation

Pages from

395

Pages to

410

Pages count

9

URL

http://www.mdpi.com/1996-1944/9/5/395

Full text in the Digital Library

http://hdl.handle.net/11012/61770

BibTex

@article{BUT125230,
  author="Lukáš {Kalina} and Vlastimil {Bílek} and Radoslav {Novotný} and Miroslava {Mončeková} and Jiří {Másilko} and Jan {Koplík}",
  title="Effect of Na3PO4 on the Hydration Process of Alkali-Activated Blast Furnace Slag",
  journal="Materials",
  year="2016",
  volume="9",
  number="5",
  pages="395--410",
  doi="10.3390/ma9050395",
  url="http://www.mdpi.com/1996-1944/9/5/395"
}

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