Advanced building materials Dr. Manolia A. Ali 1 Granulated foamed glass Introduction Foamed glass aggregates are obtained from recycled glass. In 1980ʼs the production was started in Switzerland and Germany. And in 1990’s, it was used as a thermal material in road construction in Scandinavia. The foam glass is widely used in the form of blocks, plates, grain of different sizes, components for thermal insulation in construction, in machines, chemical industry, and aggregates as well as for sound insulation. The foam glass exceeds the alternative materials (ceramic-perlite, vermiculite, concrete, mineral wool, glass wool, polystyrene, polyurethane, ceramic fibers) in thermal conductivity, mechanical strength, moisture absorption. Foam glass granules (FGG) could be used as aggregate in producing lightweight aggregate concrete (LWAC). FGG are artificial aggregates, usually made of recycled glass. FGG is a finely porous building material (85–90% porosity), which is clean, light, easily handled, efficient and environmentally friendly, as shown in Figure (1). It has excellent properties of thermal insulation compared to the traditional expanded clay aggregates .FGG are sintered in temperature range from 800 to 900 °C while expanded clay aggregates at 1100–1200 °C. Nowadays glass foam manufacturers use about 98% of various glass waste and only 2% of pure glass.
Granulated foamed glass
Apr 25, 2023
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Related Documents
