Abstract: A method of manufacturing building bricks provides for mixing quartz sand, which can be barkhan bare sand, with clay and starch. NaOH and water, which can be technical water or sea water, are added to the mixture which is then subjected to semidry shaping and baking. The resulting light weight bricks produced in a simple and economical way possess low thermal conductivity, are heat- and frost proof, chemical-resistant, and biorefractory.

Abstract: Dry compound from clay, quartz sand, starch as binding addition agent is prepared, 20% of water solution of sodium hydroxide is added to it, the obtained mixture is formed and exposed to bake for 1.5 hour under 960-1050 deg. C., at that, the ratio of quartz sand and clay is 2.33:1, and the ratio of dry compound and solution of sodium hydroxide is 6.25:1. Thus, the method is simplified, the obtained bricks have low heat transfer and low gravity, but are solid, cold, heat and chemical-resistant.