AbstractSintered wollastonite-plagioclase glass ceramics were prepared through crystallization of a parent glass generated by vitrification of pyrolysis residual glass fibers that had been pyrolytically recovered from waste composite materials. A vitrifiable mixture consisting of 95% by weight glass fiber and 5% by weight Na2O was melted at 1,450°C to obtain a glass frit. The glass-ceramic materials were produced by a sinter-crystallization process from the powdered glass frit. The effect of firing temperature on the properties of sintered-glass ceramics was investigated. The sintering behavior of glass-ceramic tiles was evaluated by means of water absorption, apparent porosity, and bulk density. In addition, the mineralogical and microstructural characterization of these tiles was carried out using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results from experiments such as water absorption, bending strength, chemical resistance, and stain resistance have shown that the developed ...