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Technical characterization of sintered glass-ceramics derived from glass fibers recovered by pyrolysis

AutorMartín, María Isabel; López Gómez, Félix Antonio ; Alguacil, Francisco José; Romero, Maximina
Palabras claveGlass fibers
Construction materials
X-Ray diffraction
Mechanical properties
Fecha de publicación2015
EditorAmerican Society of Civil Engineers
CitaciónJournal of Materials in Civil Engineering
ResumenSintered 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 wt.% glass fiber and 5 wt.% Na2O was melted at 1450ºC 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 behaviour 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 glass-ceramic materials possess technological properties very suitable for architectural applications.
Versión del editorhttp://ascelibrary.org/doi/abs/10.1061/%28ASCE%29MT.1943-5533.0001090
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