Insights into the glass network structure of coal fly ash-based glass

Savić, Veljko; Topalović, Vladimir; Nikolić, Jelena; Đošić, Marija; Obradović, Milena; Smiljanjić, Danijela; Grujić, Snežana

doi:10.5937/IOC25442S

2025

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Authors

Savić, Veljko
Topalović, Vladimir
Nikolić, Jelena
Đošić, Marija
Obradović, Milena
Smiljanjić, Danijela

Grujić, Snežana

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Abstract

Coal fly ash is the by-product of coal combustion in thermal power plants. The chemical composition of coal fly ash allows it to be utilized as a secondary raw material for glass production. Na2CO3 and CaCO3 were introduced in the batch as raw materials for glass network modification. Dark homogenous glass was obtained by melting the batch and quenching it on the stainless steel in the air. This research investigates the relative share of structural units of the glass network by deconvolution of the part of the FTIR spectra. Results show that most dominant structural units contain one and two bridging oxygen per [SiO4] tetrahedral indicating low glass network connectivity.

Keywords:

coal fly ash / glass / FTIR / deconvolution

Source:
IOC2025 : 56th International October Conference on Mining and Metallurgy : Proceedings, 2025, 442-445

Publisher:

Bor : University of Belgrade - Technical Faculty in Bor

Funding / projects:

Note:

IOC2025 : 56th International October Conference on Mining and Metallurgy; October 22-25, 2025, Bor Lake, Serbia.

DOI: 10.5937/IOC25442S

TY  - CONF
AU  - Savić, Veljko
AU  - Topalović, Vladimir
AU  - Nikolić, Jelena
AU  - Đošić, Marija
AU  - Obradović, Milena
AU  - Smiljanjić, Danijela
AU  - Grujić, Snežana
PY  - 2025
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/15738
AB  - Coal fly ash is the by-product of coal combustion in thermal power plants. The chemical composition of coal fly ash allows it to be utilized as a secondary raw material for glass production. Na2CO3 and CaCO3 were introduced in the batch as raw materials for glass network modification. Dark homogenous glass was obtained by melting the batch and quenching it on the stainless steel in the air. This research investigates the relative share of structural units of the glass network by deconvolution of the part of the FTIR spectra. Results show that most dominant structural units contain one and two bridging oxygen per [SiO4] tetrahedral indicating low glass network connectivity.
PB  - Bor : University of Belgrade - Technical Faculty in Bor
C3  - IOC2025 : 56th International October Conference on Mining and Metallurgy : Proceedings
T1  - Insights into the glass network structure of coal fly ash-based glass
SP  - 442
EP  - 445
DO  - 10.5937/IOC25442S
ER  -

@conference{
author = "Savić, Veljko and Topalović, Vladimir and Nikolić, Jelena and Đošić, Marija and Obradović, Milena and Smiljanjić, Danijela and Grujić, Snežana",
year = "2025",
abstract = "Coal fly ash is the by-product of coal combustion in thermal power plants. The chemical composition of coal fly ash allows it to be utilized as a secondary raw material for glass production. Na2CO3 and CaCO3 were introduced in the batch as raw materials for glass network modification. Dark homogenous glass was obtained by melting the batch and quenching it on the stainless steel in the air. This research investigates the relative share of structural units of the glass network by deconvolution of the part of the FTIR spectra. Results show that most dominant structural units contain one and two bridging oxygen per [SiO4] tetrahedral indicating low glass network connectivity.",
publisher = "Bor : University of Belgrade - Technical Faculty in Bor",
journal = "IOC2025 : 56th International October Conference on Mining and Metallurgy : Proceedings",
title = "Insights into the glass network structure of coal fly ash-based glass",
pages = "442-445",
doi = "10.5937/IOC25442S"
}

Savić, V., Topalović, V., Nikolić, J., Đošić, M., Obradović, M., Smiljanjić, D.,& Grujić, S.. (2025). Insights into the glass network structure of coal fly ash-based glass. in IOC2025 : 56th International October Conference on Mining and Metallurgy : Proceedings
Bor : University of Belgrade - Technical Faculty in Bor., 442-445.
https://doi.org/10.5937/IOC25442S

Savić V, Topalović V, Nikolić J, Đošić M, Obradović M, Smiljanjić D, Grujić S. Insights into the glass network structure of coal fly ash-based glass. in IOC2025 : 56th International October Conference on Mining and Metallurgy : Proceedings. 2025;:442-445.
doi:10.5937/IOC25442S .

Savić, Veljko, Topalović, Vladimir, Nikolić, Jelena, Đošić, Marija, Obradović, Milena, Smiljanjić, Danijela, Grujić, Snežana, "Insights into the glass network structure of coal fly ash-based glass" in IOC2025 : 56th International October Conference on Mining and Metallurgy : Proceedings (2025):442-445,
https://doi.org/10.5937/IOC25442S . .