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 Tertiary air conduit

The lining of the tertiary air conduit is normally designed combined; brickwork is provided on straight pipe runs along with expansion joints, areas with a complex geometric shape and a flap are made of refractory concrete. Special concrete brands were developed to resist high abrasive wear, effects of alkalis, sulfates, and chlorides. We suggest making the heat insulation layer from lightweight concretess or a calcium silicate slab.