Evaluation of Concretes Incorporated with Fluorescent Lamp Glass Waste

Abstract:

The increase amount of industrial wastes is becoming a serious worldwide environmental problem, which is aggravated by wastes containing toxic substances. This is the case of fluorescent lamps that use mercury vapor for light emission. At the end of their operational life these lamps should not be directly disposed to avoid the Hg toxic effects. Decontamination procedures take the Hg away but leave the other parts of the lamp as solid wastes. The mains part is the lamp glass, which finds many ways to be recycled. In the present work a fluorescent lamp glass waste was investigated as a possible material to be incorporated into a cement matrix as part of a civil construction concrete. Different amounts of waste up to 20 wt% were mixed with sand, gravel and cement to prepare concrete samples that were tested for the mechanical strength and water absorption in intervals of time until complete cure at 28 days. Although the waste failed to show pozzolanic activity, the incorporated concretes attended the required technical specifications.

• Periodical: Materials Science Forum (Volumes 775-776)
• Pages: 566-570
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.775-776.566
• Online since: January 2014
• Authors: Leonardo Gonçalves Pedroti, Carlos Maurício Fontes Vieira, Sergio Neves Monteiro, Veronica Scarpini Candido, Gustavo de Castro Xavier, Jonas Alexandre
• Keywords: Concrete, Fluorescent Lamp, Glass Waste, Technical Properties

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