Metakaolin is obtained by calcining and micronising a kaolinic clay. It is an amorphous non-crystalline material.
Metakaolin is a highly reactive pozzolanic material produced by the controlled thermal activation of selected clays
Applications for Metakaolin
Metakaolins are used in oilwell cementing as pozzolan to improve the compressive and flexural strength of the hardened cement. Metakaolin also reduce the hardened cement permability to liquids and gases.
As well as improving strength, they also provide cement extension, as their contribution to slurry viscosity allows highr water/cement ratios to be used without the development of free water.
Imerys Metakaolin portfolio
Imerys metakaolins are manufactured in UK, France, USA and Ukraine (see our map of assets)
Click on the product name to obtain the corresponding data sheet: