ПІНОСКЛО НА ОСНОВІ СКЛОБОЮ ЛИСТОВОГО СКЛА

Foam glass was produced from sheet float glass waste, using anthracite as a blowing agent. The aim of this work was to study the conditions for producing foam glass with high-performance properties and to investigate the effect of additives that can alter viscosity and surface tension, as well as act as blowing agents, on the structure and properties of foam glass. The foaming of the samples was carried out in a muffle furnace at a temperature of 860 °C for 20 minutes. The firing temperature was 550 °C. The resulting reference glass had a bulk density of 180 kg/m³ and a closed-cell foam structure. The porosity of the material was 93.5%. Compressive strength was 0.8 MPa, bending strength was 0.5 MPa, and impact strength was 0.016 J/cm². The introduction of Na2SiO3, Na2SO4∙10H2O, CaCO3, H3BO3, Na2B4O7∙10H2O additives in amounts of 1% of the batch weight altered the properties of the foam glass. The addition of Na2SiO3, H3BO3 and Na2B4O7 under these conditions led to a homogeneous, fine-cell structure of the foam glass, resulting in high mechanical strength and low thermal conductivity.