Figure 1. (a) Bentonite powder (b) Olokoro clay (as mined) (c) Dried Olokoro clay (d) Dried Olokoro clay mixed with Bentonite

From

Synergic Effect of Post-Fired Volume Shrinkage and Porosity of Bricks on Its Water Absorption Level during Service in Submerged State

C. I. Nwoye, I. E. Nwosu, S. O. Nwakpa

International Journal of Materials Lifetime. 2014, 1(1), 13-19