Publication result detail

Blastfurnace Hybrid Cement with Waste Water Glass Activator: Alkali-Silica Reaction Study

KALINA, L.; BÍLEK, V.; BRADOVÁ, L.; TOPOLÁŘ, L.

Original Title

Blastfurnace Hybrid Cement with Waste Water Glass Activator: Alkali-Silica Reaction Study

English Title

Blastfurnace Hybrid Cement with Waste Water Glass Activator: Alkali-Silica Reaction Study

Type

WoS Article

Original Abstract

Hybrid systems represent a new sustainable type of cement combining the properties of ordinary Portland cement and alkali-activated materials. In this study, a hybrid system based on blast furnace slag and Portland clinker was investigated. The economic aspects and appropriate waste management resulted in the usage of technological waste from water glass production (WG-waste) as an alkaline activator. Although the Portland clinker content was very low, the incorporation of this by-product significantly improved the mechanical properties. Nevertheless, the high amount of alkalis in combination with possible reactive aggregates raises concerns about the risk of alkali–silica reaction (ASR). The results obtained from expansion measurement, the uranyl acetate fluorescence method, and microstructure characterization revealed that the undesirable effects of alkali–silica reaction in mortars based on the hydration of hybrid cement are minimal.

English abstract

Hybrid systems represent a new sustainable type of cement combining the properties of ordinary Portland cement and alkali-activated materials. In this study, a hybrid system based on blast furnace slag and Portland clinker was investigated. The economic aspects and appropriate waste management resulted in the usage of technological waste from water glass production (WG-waste) as an alkaline activator. Although the Portland clinker content was very low, the incorporation of this by-product significantly improved the mechanical properties. Nevertheless, the high amount of alkalis in combination with possible reactive aggregates raises concerns about the risk of alkali–silica reaction (ASR). The results obtained from expansion measurement, the uranyl acetate fluorescence method, and microstructure characterization revealed that the undesirable effects of alkali–silica reaction in mortars based on the hydration of hybrid cement are minimal.

Keywords

hybrid cement; alkaline activation; blast furnace slag; waste water glass; ordinary Portland cement; alkali–silica reaction; aggregate

Key words in English

hybrid cement; alkaline activation; blast furnace slag; waste water glass; ordinary Portland cement; alkali–silica reaction; aggregate

Authors

KALINA, L.; BÍLEK, V.; BRADOVÁ, L.; TOPOLÁŘ, L.

RIV year

2021

Released

17.08.2020

Publisher

MDPI

ISBN

1996-1944

Periodical

Materials

Volume

13

Number

16

State

Swiss Confederation

Pages from

1

Pages to

9

Pages count

9

URL

https://www.mdpi.com/1996-1944/13/16/3646

Full text in the Digital Library

http://hdl.handle.net/11012/194803

BibTex

@article{BUT164725,
  author="Lukáš {Kalina} and Vlastimil {Bílek} and Lada {Bradová} and Libor {Topolář}",
  title="Blastfurnace Hybrid Cement with Waste Water Glass Activator: Alkali-Silica Reaction Study",
  journal="Materials",
  year="2020",
  volume="13",
  number="16",
  pages="1--9",
  doi="10.3390/ma13163646",
  url="https://www.mdpi.com/1996-1944/13/16/3646"
}

Documents

materials-13-03646