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Value-added recycling of cathode ray tube funnel glass into high-performance radiation shielding concrete

  • Yan Xia
  • , Daquan Shi*
  • , Jian Wang
  • , Yading Zhao
  • , Kunyang Yu
  • , Yue Liu
  • , Hongguang Cui
  • , Lei Wang
  • *Corresponding author for this work
  • Zhejiang University
  • School of Civil Engineering, Harbin Institute of Technology
  • Adelaide University
  • First Affiliated Hospital of Zhejiang University

Research output: Contribution to journalArticlepeer-review

Abstract

This study proposed a novel method for recycling cathode ray tube (CRT) glass as heavy aggregates to prepare radiation shielding concrete (RSC). Microstructure, physical properties, radiation shielding characteristics, as well as economic and environmental benefits of CRT glass-based RSC were evaluated. Compared to conventional RSC, the CRT glass-based RSC showed a 13.8 % higher gamma ray shielding capacity. Although the mechanical properties of CRT glass-based RSC slightly decreased by 25.7 % due to the weak interfacial transition zone, the 28-day compressive strength of CRT glass-based RSC still fulfilled the requirement of criteria (> 30 MPa). Based on the cost-benefit assessment, there was 166.7 $/m3 profit in CRT glass-based RSC. Furthermore, CRT glass-based RSC demonstrated 47.7 % and 37.0 % reduction in fossil fuel depletion and carbon emissions compared with barite-based RSC.

Original languageEnglish
Article number107252
JournalResources, Conservation and Recycling
Volume199
DOIs
StatePublished - Dec 2023
Externally publishedYes

UN SDGs

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

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy
  2. SDG 12 - Responsible Consumption and Production
    SDG 12 Responsible Consumption and Production

Keywords

  • Functional construction materials
  • Interfacial transition zone
  • Life-cycle assessment
  • Radiation shielding concrete
  • Waste glass recycling

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