Detail publikačního výsledku
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
Full text in the Digital Library
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",
issn="1996-1944",
url="http://www.mdpi.com/1996-1944/9/5/395"
}Documents