Calix Limited

- Metakaolin


Metakaolin is a highly reactive aluminosilicate pozzolan used mainly in a range of specialised concrete applications. As Australia's only manufacturer of Metakaolin, Calix produces ACTI-Mk from the flash calcination of high-grade kaolinic clay. Instead of directly heating minerals in the traditional way, we heat them indirectly and thus do not introduce impurities into the process.

Concrete products manufactured with Metakaolin will exhibit the following benefits:

  • Increased compressive and flexural strength
  • Improved durability
  • Reduced permeability
  • Reduced efflorescence
  • Increased Chemical resistance
  • Reduced chloride migration
  • Reduced sag
  • Enhanced workability and finishing
  • Reduced effects of alkali-silica reactivity (ASR)
  • Increase adhesion
  • Reduced shrinking
  • Lighter colour
  • Reduction of CO2 output

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