Glass - is one of the main materials used in construction. Transparent to visible spectrum of electromagnetic waves by a man material, one of the oldest and, thanks to the variety of their properties - in the practice of universal human rights. Physico-chemical - an inorganic substance, solid structure - amorphous. The main components that make up glass are silica sand (69-74%), ash (12-16%), limestone and dolomite (5-12%) and small percentages some other components. More specifically, by the glass-forming substances include
oxides:
SiO2,
B2O3,
P2O5,
TeO2,
GeO2 Fluoride:
AlF3, etc.
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