In recent years, there are more research on metakaolin made abroad showed that the metakaolin concrete admixture can produce an alternative to traditional high-performance silica fume concrete.

Addition of silica fume into the mix will result in increasing the workability and strength of cement mortar and decreasing the expansion.

Fracture energy of concrete was measured for studying the fracture brittleness of the high performance concrete mixed ground granulated blastfurnace slag (GGBFS) and silica fume.