Abstract

High strength or construction bloating clay is widely used in construction operations especially in construction of roads, bridges, airfield pavement. It replaces crushed stone as an aggregate. Technology of high strength bloating clay requires essential changes in its stoving curve in comparison with the production of light bloating clay. It is shown that in order to solve an urgent construction problem of bloating clay release it is necessary to conduct monitoring of temperature pattern in a rotary kiln in several distinctive cross sections and conduct management of a kiln as an object with distributed constants with the use of several, especially three, concentrated control actions. The developed mathematical model of stoving process and methodology of computing experiment, exemplified by the 40×2,5м kiln, allowed to find operating areas of condition and management of an automated object, focused on bloating clay release with assigned strength.

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