| http://www.w3.org/ns/prov#value | - A brick or similarly fired construction unit and method of making it comprising mixing at least about 50% inorganic, non-ferrous residue from municipal incinerators, by weight, with coal fly ash and a binder, such as sodium silicate, and firing the mixture at a temperature of about 1700 to about 1900 to 2000.degree.
|
