A combination of liquid–crystal display glass powder and slag in alkali-activated material

Ilhwan You; Doo Yeol Yoo; Seung Jung Lee; Yujin Lee; Goangseup Zi

doi:10.1016/j.conbuildmat.2023.130527

A combination of liquid–crystal display glass powder and slag in alkali-activated material

Ilhwan You, Doo Yeol Yoo, Seung Jung Lee, Yujin Lee, Goangseup Zi

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

This study presents the feasibility of a combination of liquid–crystal display glass powder (LCDGP) and slag in alkali-activated materials using several techniques including nuclear magnetic resonance and thermodynamic modeling. Slag was replaced with LCDGP at a weight ratio of 25%, 50%, 75%, and 100%. Replacing slag with LCDGP up to 50% resulted in no strength loss and no significant changes in phase assemblages compared to alkali-activated slag. The incorporation of 25% LCDGP improved the pore structure and the reactivity of both precursors which result in increased compressive strength. This was because aluminum of LCDGP incorporated into the silicate which polymerized more C-(N)-A-S-H gel. However, the excessive use of LCDGP (more than 50%) caused a significant strength loss. Since LCDGP was responsible for lowering the pore solution's pH, its excessive use reduced the reactivity of precursors and caused a significant strength loss. This study suggests a guideline for using LCDGP to improve the mechanical property of alkali-activated slag.

Original language	English
Article number	130527
Journal	Construction and Building Materials
Volume	369
DOIs	https://doi.org/10.1016/j.conbuildmat.2023.130527
Publication status	Published - 2023 Mar 10

Bibliographical note

Funding Information:
This research was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF- 2020R1I1A1A01071824 ), the Ministry of Science and ICT (NRF-2021R1A5A1032433), and the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministy of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20213030020110).

Publisher Copyright:
© 2023

Keywords

Alkali-activated materials
Blast furnace slag
Degree of reaction
Liquid-crystal display glass powder
Waste glass

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
General Materials Science

Access to Document

10.1016/j.conbuildmat.2023.130527

Cite this

@article{1dd7b42456f546d8821bb2ccafa8621f,

title = "A combination of liquid–crystal display glass powder and slag in alkali-activated material",

abstract = "This study presents the feasibility of a combination of liquid–crystal display glass powder (LCDGP) and slag in alkali-activated materials using several techniques including nuclear magnetic resonance and thermodynamic modeling. Slag was replaced with LCDGP at a weight ratio of 25%, 50%, 75%, and 100%. Replacing slag with LCDGP up to 50% resulted in no strength loss and no significant changes in phase assemblages compared to alkali-activated slag. The incorporation of 25% LCDGP improved the pore structure and the reactivity of both precursors which result in increased compressive strength. This was because aluminum of LCDGP incorporated into the silicate which polymerized more C-(N)-A-S-H gel. However, the excessive use of LCDGP (more than 50%) caused a significant strength loss. Since LCDGP was responsible for lowering the pore solution's pH, its excessive use reduced the reactivity of precursors and caused a significant strength loss. This study suggests a guideline for using LCDGP to improve the mechanical property of alkali-activated slag.",

keywords = "Alkali-activated materials, Blast furnace slag, Degree of reaction, Liquid-crystal display glass powder, Waste glass",

author = "Ilhwan You and Yoo, {Doo Yeol} and Lee, {Seung Jung} and Yujin Lee and Goangseup Zi",

note = "Funding Information: This research was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF- 2020R1I1A1A01071824 ), the Ministry of Science and ICT (NRF-2021R1A5A1032433), and the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministy of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20213030020110). Publisher Copyright: {\textcopyright} 2023",

year = "2023",

month = mar,

day = "10",

doi = "10.1016/j.conbuildmat.2023.130527",

language = "English",

volume = "369",

journal = "Construction and Building Materials",

issn = "0950-0618",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - A combination of liquid–crystal display glass powder and slag in alkali-activated material

AU - You, Ilhwan

AU - Yoo, Doo Yeol

AU - Lee, Seung Jung

AU - Lee, Yujin

AU - Zi, Goangseup

N1 - Funding Information: This research was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF- 2020R1I1A1A01071824 ), the Ministry of Science and ICT (NRF-2021R1A5A1032433), and the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministy of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20213030020110). Publisher Copyright: © 2023

PY - 2023/3/10

Y1 - 2023/3/10

N2 - This study presents the feasibility of a combination of liquid–crystal display glass powder (LCDGP) and slag in alkali-activated materials using several techniques including nuclear magnetic resonance and thermodynamic modeling. Slag was replaced with LCDGP at a weight ratio of 25%, 50%, 75%, and 100%. Replacing slag with LCDGP up to 50% resulted in no strength loss and no significant changes in phase assemblages compared to alkali-activated slag. The incorporation of 25% LCDGP improved the pore structure and the reactivity of both precursors which result in increased compressive strength. This was because aluminum of LCDGP incorporated into the silicate which polymerized more C-(N)-A-S-H gel. However, the excessive use of LCDGP (more than 50%) caused a significant strength loss. Since LCDGP was responsible for lowering the pore solution's pH, its excessive use reduced the reactivity of precursors and caused a significant strength loss. This study suggests a guideline for using LCDGP to improve the mechanical property of alkali-activated slag.

AB - This study presents the feasibility of a combination of liquid–crystal display glass powder (LCDGP) and slag in alkali-activated materials using several techniques including nuclear magnetic resonance and thermodynamic modeling. Slag was replaced with LCDGP at a weight ratio of 25%, 50%, 75%, and 100%. Replacing slag with LCDGP up to 50% resulted in no strength loss and no significant changes in phase assemblages compared to alkali-activated slag. The incorporation of 25% LCDGP improved the pore structure and the reactivity of both precursors which result in increased compressive strength. This was because aluminum of LCDGP incorporated into the silicate which polymerized more C-(N)-A-S-H gel. However, the excessive use of LCDGP (more than 50%) caused a significant strength loss. Since LCDGP was responsible for lowering the pore solution's pH, its excessive use reduced the reactivity of precursors and caused a significant strength loss. This study suggests a guideline for using LCDGP to improve the mechanical property of alkali-activated slag.

KW - Alkali-activated materials

KW - Blast furnace slag

KW - Degree of reaction

KW - Liquid-crystal display glass powder

KW - Waste glass

UR - http://www.scopus.com/inward/record.url?scp=85147551042&partnerID=8YFLogxK

U2 - 10.1016/j.conbuildmat.2023.130527

DO - 10.1016/j.conbuildmat.2023.130527

M3 - Article

AN - SCOPUS:85147551042

SN - 0950-0618

VL - 369

JO - Construction and Building Materials

JF - Construction and Building Materials

M1 - 130527

ER -

A combination of liquid–crystal display glass powder and slag in alkali-activated material

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this