Hollow glass block | Article about hollow glass block by The Free Dictionary
hollow glass block
glass block, glass brick
A hollow block of glass, usually translucent with textured faces; has relatively low thermal-insulation and low fire-resistance value; used in non-load-bearing walls.
References in periodicals archive
These are less energy efficient that standard hollow glass blocks
and are very heavy to install.
In 1975, Ernest Friedrich at Rohm GmbH in Germany patented a gas-assist method for making one-piece hollow acrylic blocks to compete with hollow glass blocks
used in construction.