Microstructure of metakaolin through field emission scanning electron microscope (FESEM) showing particle size distribution.
Sadaqat Ullah Khan, Muhammad Fadhil Nuruddin, Tehmina Ayub, Nasir Shafiq
CC BY 4.0
Sadaqat Ullah Khan et. al. "Effects of Different Mineral Admixtures on the Properties of Fresh Concrete", The Scientific World Journal <a rel="nofollow" class="external text" href="https://doi.org/10.1155/2014/986567">doi:10.1155/2014/986567</a>