What is Metakaolin?

Metakaolin is anhydrous aluminum silicate formed by dehydration at appropriate temperature (600 ~ 900 ℃)

Metakaolin is a kind of highly active mineral admixture, which is amorphous aluminum silicate formed by low temperature calcination of ultra-fine kaolin. It has high pozolanic activity and is mainly used as concrete admixture and can also make high-performance geopolymers

When kaolin is heated in the air, it will undergo several structural changes, and when it is heated to about 600 ° C, the layered structure of kaolin is destroyed by dehydration, forming a transition phase with poor crystallinity – metakaolin. Because the molecular arrangement of metakaolin is irregular, it shows thermodynamic metastable state and has gelling property under proper excitation.

Metakaolin is a highly active artificial pozzolanic material that can react pozzolanic with Ca(OH)2 (CH) and water to produce hydration products similar to cement. When used as cement admixture, some properties of cement can be improved

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How to use metakaolin to make cement, if you need more detail information about the ready clay, you can contact it

Usually metakaolin is white color,The quality of metakaolin is the key to determining the strength grade of cementt

Metakaolin picture