Basalt brick

Red and blue acid-resistant bricks are resistant to all inorganic and organic chemicals, except for hydrofluoric acid and hot concentrated caustic alkalis. Acid-resistant fireclay bricks are used for conditions involving elevating temperatures and corrosive condensates. Highly vitrified materials such as chemical stoneware, porcelain and basalts are used for extremely severe duties or where contamination of the process liquors is undesirable. 

The common masonry materials as limestones, marble, sandstones basalt and granite as well as artificial materials as brick, concrete and mortar are composed primarily of carbonate and silicate mineral. The natural weathering of these materials, due mainly to atmospheric CO2, increases at an alarming rate due to atmospheric acidity and acid precipitation. 

The foundry technology does not admit the manufacture of dimensionally precise products of complex shapes. For this reason, sintered basalt technology has been developed for the manufacture of nozzles, drawing dies, dies for auger brick machines, etc., where the materials exhibit a resistance to abrasion still higher than that of cast basalt. The fused basalt powder is mixed with a plasticiser and pressed the pressings are sintered in an electric tunnel kiln at 1120 to 1140 C. 

Agate Alabaster, carbonate sulfate Albite Amber Amphiboles Anorthite Asbestos Asbestos slate Asphalt Basalt Beeswax Beryl Biotite Bone Brasses Brick Bronzes Butter Calamine Calcspar Camphor Cardboard Celluloid Cement, set Chalk Charcoal, oak pine... 

The common masonry materials include such natural building stones as limestones, marbles, sandstones, basalt and granites, as well as such artificial materials as brick, concrete, mortar and terra-cotta. All of these materials are composed primarily of carbonate and silicate minerals. The grains of quartz (Si02) in sandstone may be bonded together with calcite (CaC03), while the last is an essential constituent of limestone and marble and, to a lesser extent, of the lime-mortar. Natural silicate minerals compose basalt, granite, and porphyries, and complex silicates are formed in the process of fabrication of concrete and terra-cotta. The decomposition of the masonry materials may thus be considered in terms of attack of atmospheric CO2 and SO2 on calcite and the silicate minerals. 

Aggregate Basalt 0/1 Crushed brick Fireclay 0/1 Corund 0/1 Crushed glass ... 

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