Recycling of cathode ray tube panel glasses as aggregates of concrete blocks and clay bricks

Jang Soo Lee, Heung Min Yoo, Se Won Park, Sung Jin Cho, Yong Chil Seo

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

While the cathode ray tube (CRT) funnel containing lead could be transported to a smelting facility to recover lead, which could be an available option in domestic, a proper technology to recycle a CRT panel must be developed. Thus, it was suggested that CRT panel glass be used as aggregates of concrete blocks and clay bricks. Samples of blocks and bricks were fabricated with CRT powders and tested to measure their strength and absorption rate to determine their qualities, and environmental soundness was determined by measuring the leaching rate of hazardous metals. For concrete blocks, CRT panel glass powders incorporated as aggregates up to 40 % replacing stone powder was proposed as the proper condition for manufacturing blocks. Around 2 % of CRT panel incorporated into clay brick to substitute Kaoline was suggested to fabricate the best quality of clay brick. Results of leaching test met the criteria with much less concentration of hazardous metals, even lead compound containing in the CRT funnel. To conclude, the use of CRT panel powder after crushing it to the proper size as an aggregate of concrete blocks or clay bricks could be one of the appropriate alternatives to recycle for CRT glass waste being generated drastically in a short term.

Original languageEnglish
Pages (from-to)552-562
Number of pages11
JournalJournal of Material Cycles and Waste Management
Volume18
Issue number3
DOIs
Publication statusPublished - 2016 Jul 1

All Science Journal Classification (ASJC) codes

  • Waste Management and Disposal
  • Mechanics of Materials

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