Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/12615
Title: Utilization of recycled cathode ray tubes glass in cement mortar for X-ray radiation-shielding applications
Authors: Ling, TC
Poon, CS 
Lam, WS
Chan, TP
Fung, KKL 
Keywords: Cathode ray tubes
Cement mortar
Density
Glass recycling
Radiation-shielding
Strength
Issue Date: 2012
Publisher: Elsevier
Source: Journal of hazardous materials, 2012, v. 199-200, p. 321-327 How to cite?
Journal: Journal of hazardous materials 
Abstract: Recycled glass derived from cathode ray tubes (CRT) glass with a specific gravity of approximately 3.0g/cm 3 can be potentially suitable to be used as fine aggregate for preparing cement mortars for X-ray radiation-shielding applications. In this work, the effects of using crushed glass derived from crushed CRT funnel glass (both acid washed and unwashed) and crushed ordinary beverage container glass at different replacement levels (0%, 25%, 50%, 75% and 100% by volume) of sand on the mechanical properties (strength and density) and radiation-shielding performance of the cement-sand mortars were studied. The results show that all the prepared mortars had compressive strength values greater than 30MPa which are suitable for most building applications based on ASTM C 270. The density and shielding performance of the mortar prepared with ordinary crushed (lead-free) glass was similar to the control mortar. However, a significant enhancement of radiation-shielding was achieved when the CRT glasses were used due to the presence of lead in the glass. In addition, the radiation shielding contribution of CRT glasses was more pronounced when the mortar was subject to a higher level of X-ray energy.
URI: http://hdl.handle.net/10397/12615
ISSN: 0304-3894
EISSN: 1873-3336
DOI: 10.1016/j.jhazmat.2011.11.019
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