Stones & Soils

Chromium-free and recyclable fireproof material for high-stress applications

In comparison with chromium-based magnesite, the zirconium-based magnesite material HB98Z, which has been specially developed for the fireproof cladding of rotary drum kilns in the cement industry, has achieved a 25% longer service life. The recycling of waste cladding material as an aggregate for cement clinker has proved to be unproblematic.

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Source: German National Library of Science and Technology Hannover (TIB)