The amount of Thin Film Transistor Liquid Crystal Display (TFT-LCD) waste glass dumped into landfills was approximately 9.8×106 tons in Taiwan in 2013. The problem is that TFT-LCD waste glass is not suitable for disposal in landfills, by incineration, or in compost; this makes recycling and re-utilization the best treatment method for its disposal. TFT-LCD waste glass comprises mainly SiO2 and Al2O3 and can be used to prepare cellular geopolymers. The study investigated the effect of the amount of foam agent (0-2%) and waste glass replacement (0%- 40%) on cellular geopolymer. In this investigation, samples underwent a series of tests to determine their quality, including their setting time, compressive strength and flexural strength. Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM) were also carried out. During the fire resistance tests, a 10 mm thick geopolymer panel was exposed to an 1100°C flame. The reverse-side temperature of the panel was measured and recorded. The TCLP leaching concentrations for the materials met the EPA’s current regulatory thresholds. The main crystalline phases of kaolinite were SiO2 and Al2O3. The main crystalline phases of metakaolin and waste glass were SiO2 and entirely non-crystalline, respectively. These results indicated that the waste glass-based cellular geopolymer can be used as an eco-thermal insulating board.

Thin Film Transistor Liquid Crystal Display waste glass;geopolymer;eco-thermal insulating board;compressive strength;foam agent