Alkali Corrosion in Cement Rotary Kilns

In this paper selected refractory installation materials are examined according to their alkali performance. The calcium silicate thermal insulating materials are destroyed by fused salts. The corrosion of the steel bars mainly is caused due to gaseous alkali compounds. The alkali corrosion of refractory linings in industrial kilns can identified and described both by laboratory investigations as well as by theoretical considerations.