Foam Glass

With recognition of the desirability of glass as a construction material has come a demand for inexpensive cellular glass for nonflammable heat and sound insulation. The physical properties of foam glass largely depend on the size, number and distribution of the vesicles. Good properties are obtained with a pore size of 0.5mm to 5mm and relatively thin walls. Mechanical strength decreases with increasing pore size, but heat insulting properties improve.