E. O. Ajayi and A. J. Babafemi, “Effects of Pulverized Burnt Clay Waste Fineness on the Compressive Strength and Durability Properties of Blended Cement Concrete”, Eng. J., vol. 22, no. 2, pp. 83–99, Mar. 2018, doi: 10.4186/ej.2018.22.2.83.