Recycling of organic light-emitting diode waste glass as a sustainable cementitious material in ultra-high-performance fiber-reinforced concrete

Yoon Kyung Na; Hong Joon Choi; Kwangmo Lim; Gum Sung Ryu; Xinyuan Ke; Aliakbar Gholampour; Doo Yeol Yoo

doi:10.1016/j.dibe.2026.100887

Recycling of organic light-emitting diode waste glass as a sustainable cementitious material in ultra-high-performance fiber-reinforced concrete

Yoon Kyung Na, Hong Joon Choi, Kwangmo Lim, Gum Sung Ryu, Xinyuan Ke, Aliakbar Gholampour, Doo Yeol Yoo

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

1 Citation (SciVal)

Abstract

This study explores the recycling of organic light-emitting diode (OLED) waste glass powder as a sustainable cementitious substitute in ultra-high-performance fiber-reinforced concrete (UHPFRC). Incorporating OLED waste glass powder markedly enhanced the microstructural and mechanical performance, with the optimal mixture at a 30% replacement ratio (UP-30). The UP-30 mixture exhibited increases in tensile strength, strain capacity, and strain energy density by 15.7%, 29.6%, and 44.3%, respectively, compared with the control. These improvements stemmed from the pozzolanic reactivity of OLED waste glass, which facilitated additional calcium silicate hydrate (C-S-H) formation, refined pore structure, and improved fiber–matrix bonding. Crack analysis revealed a 19% reduction in maximum crack width and an increase in microcrack density, indicating superior ductility and crack control. Life cycle assessment confirmed significant environmental benefits, including 19.0% lower CO₂ emissions and 11.7% reduced embodied energy, underscoring the potential of OLED waste glass for circular, low-carbon UHPFRC production.

Original language	English
Article number	100887
Journal	Developments in the Built Environment
Volume	25
Early online date	24 Feb 2026
DOIs	https://doi.org/10.1016/j.dibe.2026.100887
Publication status	Published - 31 Mar 2026

Data Availability Statement

Data will be made available on request.

Funding

Research for this paper was carried out under the KICT Research Program (20250251-001, Development of Ultra-High-Density and Low-Radioactivity Concrete for Next-Generation Nuclear Power Plant Structures and Construction Technology to respond to Climate Change) funded by the Ministry of Science and ICT.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy
SDG 12 Responsible Consumption and Production

Keywords

Environmental sustainability
Mechanical performance
Microcrack behavior
Organic light-emitting diode waste
Ultra-high-performance fiber-reinforced concrete

ASJC Scopus subject areas

Civil and Structural Engineering
Architecture
Materials Science (miscellaneous)
Building and Construction
Computer Science Applications
Computer Graphics and Computer-Aided Design

Access to Document

10.1016/j.dibe.2026.100887Licence: CC BY-NC

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title = "Recycling of organic light-emitting diode waste glass as a sustainable cementitious material in ultra-high-performance fiber-reinforced concrete",

abstract = "This study explores the recycling of organic light-emitting diode (OLED) waste glass powder as a sustainable cementitious substitute in ultra-high-performance fiber-reinforced concrete (UHPFRC). Incorporating OLED waste glass powder markedly enhanced the microstructural and mechanical performance, with the optimal mixture at a 30\% replacement ratio (UP-30). The UP-30 mixture exhibited increases in tensile strength, strain capacity, and strain energy density by 15.7\%, 29.6\%, and 44.3\%, respectively, compared with the control. These improvements stemmed from the pozzolanic reactivity of OLED waste glass, which facilitated additional calcium silicate hydrate (C-S-H) formation, refined pore structure, and improved fiber–matrix bonding. Crack analysis revealed a 19\% reduction in maximum crack width and an increase in microcrack density, indicating superior ductility and crack control. Life cycle assessment confirmed significant environmental benefits, including 19.0\% lower CO2 emissions and 11.7\% reduced embodied energy, underscoring the potential of OLED waste glass for circular, low-carbon UHPFRC production.",

keywords = "Environmental sustainability, Mechanical performance, Microcrack behavior, Organic light-emitting diode waste, Ultra-high-performance fiber-reinforced concrete",

author = "Na, \{Yoon Kyung\} and Choi, \{Hong Joon\} and Kwangmo Lim and Ryu, \{Gum Sung\} and Xinyuan Ke and Aliakbar Gholampour and Yoo, \{Doo Yeol\}",

year = "2026",

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day = "31",

doi = "10.1016/j.dibe.2026.100887",

language = "English",

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T1 - Recycling of organic light-emitting diode waste glass as a sustainable cementitious material in ultra-high-performance fiber-reinforced concrete

AU - Na, Yoon Kyung

AU - Choi, Hong Joon

AU - Lim, Kwangmo

AU - Ryu, Gum Sung

AU - Ke, Xinyuan

AU - Gholampour, Aliakbar

AU - Yoo, Doo Yeol

PY - 2026/3/31

Y1 - 2026/3/31

N2 - This study explores the recycling of organic light-emitting diode (OLED) waste glass powder as a sustainable cementitious substitute in ultra-high-performance fiber-reinforced concrete (UHPFRC). Incorporating OLED waste glass powder markedly enhanced the microstructural and mechanical performance, with the optimal mixture at a 30% replacement ratio (UP-30). The UP-30 mixture exhibited increases in tensile strength, strain capacity, and strain energy density by 15.7%, 29.6%, and 44.3%, respectively, compared with the control. These improvements stemmed from the pozzolanic reactivity of OLED waste glass, which facilitated additional calcium silicate hydrate (C-S-H) formation, refined pore structure, and improved fiber–matrix bonding. Crack analysis revealed a 19% reduction in maximum crack width and an increase in microcrack density, indicating superior ductility and crack control. Life cycle assessment confirmed significant environmental benefits, including 19.0% lower CO2 emissions and 11.7% reduced embodied energy, underscoring the potential of OLED waste glass for circular, low-carbon UHPFRC production.

AB - This study explores the recycling of organic light-emitting diode (OLED) waste glass powder as a sustainable cementitious substitute in ultra-high-performance fiber-reinforced concrete (UHPFRC). Incorporating OLED waste glass powder markedly enhanced the microstructural and mechanical performance, with the optimal mixture at a 30% replacement ratio (UP-30). The UP-30 mixture exhibited increases in tensile strength, strain capacity, and strain energy density by 15.7%, 29.6%, and 44.3%, respectively, compared with the control. These improvements stemmed from the pozzolanic reactivity of OLED waste glass, which facilitated additional calcium silicate hydrate (C-S-H) formation, refined pore structure, and improved fiber–matrix bonding. Crack analysis revealed a 19% reduction in maximum crack width and an increase in microcrack density, indicating superior ductility and crack control. Life cycle assessment confirmed significant environmental benefits, including 19.0% lower CO2 emissions and 11.7% reduced embodied energy, underscoring the potential of OLED waste glass for circular, low-carbon UHPFRC production.

KW - Environmental sustainability

KW - Mechanical performance

KW - Microcrack behavior

KW - Organic light-emitting diode waste

KW - Ultra-high-performance fiber-reinforced concrete

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ER -

Recycling of organic light-emitting diode waste glass as a sustainable cementitious material in ultra-high-performance fiber-reinforced concrete

Abstract

Data Availability Statement

Funding

UN SDGs

Keywords

ASJC Scopus subject areas

Access to Document

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