Metakaolin is a kind of highly active mineral admixture, it is an amorphous aluminum silicate formed by low-temperature calcination of ultra-fine kaolin, with high volcanic ash activity, mainly used as concrete admixture, but also can make high-performance geopolymers.
The mud formed by combining kaolin and water can be deformed under the action of external force, and after the external force is removed, it can still maintain the deformation property.
The particle size distribution characteristics of kaolin is of great significance to the selectivity of the ore and the application of technology, and its particle size has a great influence on the plasticity, slurry viscosity, ion exchange, molding performance, drying performance, sintering performance, and all have a great influence.
Kaolin and non-plastic raw materials combined to form a plasticity mud and have a certain drying strength performance, usually where the plasticity of kaolin is strong binding ability is also strong.
Kaolin has the ability to resist high temperature without melting.