UTILIZATION OF CATHODE RAY TUBES (CRT) CULLET IN THE FORMULATION OF CERAMIC BODY

Abstract

In this study, the rate of accumulation, method of disposal, and risk involved in the CRT glut were accessed. Cullet of TV and PC cathode ray tubes additions were used in substitution for feldspar to formulate stoneware body and simulating standard tile -making process at Royal ceramics Limited (RCL) Suleja. The technological and mechanical properties of the CRT-body system were evaluated against the extant requirements for tiles. Results show that bodies containing between 10 to 50 percent by weight CRT complied with the requirements for standard tiles without violating the rule of firing above volatilization temperature of 1150°C for lead. The sintering pattern shows modifications according to amount (wt %) of cullet addition. There is a lowering of the maximum densification temperature and of the activation energy. Establishment of collection centres is recommended in addition to legislation about the disposal of garbage CRT by Environmental Protection Agencies at all levels in Nigeria.