Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/24361
Title: Utilization of recycled glass derived from cathode ray tube glass as fine aggregate in cement mortar
Authors: Ling, TC
Poon, CS 
Keywords: Alkali-silica reaction
Cathode ray tube
Glass
Lead
Mortar
Properties
Issue Date: 2011
Publisher: Elsevier
Source: Journal of hazardous materials, 2011, v. 192, no. 2, p. 451-456 How to cite?
Journal: Journal of hazardous materials 
Abstract: Rapid advances in the electronic industry led to an excessive amount of early disposal of older electronic devices such as computer monitors and old televisions (TV) before the end of their useful life. The management of cathode ray tubes (CRT), which have been a key component in computer monitors and TV sets, has become a major environmental problem worldwide. Therefore, there is a pressing need to develop sustainable alternative methods to manage hazardous CRT glass waste. This study assesses the feasibility of utilizing CRT glass as a substitute for natural aggregates in cement mortar. The CRT glass investigated was an acid-washed funnel glass of dismantled CRT from computer monitors and old TV sets. The mechanical properties of mortar mixes containing 0%, 25%, 50%, 75% and 100% of CRT glass were investigated. The potential of the alkali-silica reaction (ASR) and leachability of lead were also evaluated. The results confirmed that the properties of the mortar mixes prepared with CRT glass was similar to that of the control mortar using sand as fine aggregate, and displayed innocuous behaviour in the ASR expansion test. Incorporating CRT glass in cement mortar successfully prevented the leaching of lead. We conclude that it is feasible to utilize CRT glass in cement mortar production.
URI: http://hdl.handle.net/10397/24361
ISSN: 0304-3894
EISSN: 1873-3336
DOI: 10.1016/j.jhazmat.2011.05.019
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