Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 292, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2021.123424
Keywords
Portland cement; Spent fluorescent lamp glass; Pozzolanic activity; Compressive strength; Microstructure
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Funding
- Universitat Jaume I of Castellon [UJI-B2019-21]
- Spanish Ministry of Education, Culture and Sport
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Spent fluorescent lamps glass (SFLG) waste can be partially used as a replacement for Portland cement, exhibiting similar pozzolanic activity. Mortars containing 35% SFLG meet specifications for other pozzolanic materials and have comparable compressive strength values after 90 curing days.
Spent fluorescent lamps glass (SFLG) waste, manually and mechanically processed in a lamps waste treatment plant, was used to partially replace up to 50 wt% Portland cement (PC). Both waste types exhibited similar pozzolanic activity. The mortars containing up to 35 wt% SFLG met the specifications for other pozzolanic materials (e.g. fly ash) and, after 90 curing days, their compressive strength values were similar to or higher than those of the 100% PC sample (58.8 MPa). Our results provide an alternative reutilization process for this hazardous waste to reuse SFLG as-received (no washing to reduce mercury) and contributes to less PC use. (c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND
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