e. Glazed Bricks. These bricks normally have one surface coated with a white or other color of
ceramic glazing. Glazed bricks are often used for walls in hospitals, dairies, laboratories, or other
buildings that are frequently cleaned.
f. Fire Bricks. Fire bricks are made to withstand high temperatures. They are placed in fireplaces
and boilers because of their resistance to crack or decompose. Fire bricks are generally larger than
regular structural bricks.
g. Cored Bricks. Cored bricks are made with two rows of five holes extending through the brick to
reduce the weight.
h. Sand-Lime Bricks. These bricks are made from a mixture of lime and fine sand. They are
molded under mechanical pressure and hardened under steam pressure.