1 متالوژی:: متاکائولن
Metakaolin In the industrial circle it is referred to as "highly reactive metakaolin or HRM". Metakaolin literally means changed kaolin, and it is a change of kaolinite crystals into a disordered amorphous state. Mortar based on metakaolin has the advantages of high early strength, reduced permeability, greater durability, less efflorescence, resistance to degradation caused by alkali-silica reaction (ASM). (2) Highly reactive metakaolin (HRM) : It is a powerful pozzolan manufactured from kaolin and used for making "white concrete".
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