Figure 9. Microphotographies showing the distribution of the sawdust in the clay matrix with: a, dense structure (sawdust content between 5 and 15%); b, porous structure (sawdust content higher than 15%)

From

Use of Vegetable Fibers as Reinforcement in the Structure of Compressed Ground Bricks: Influence of Sawdust on the Rheological Properties of Compressed Clay Brick

S. Ouattara, M. O. Boffoue, A. A. Assande, K. C. Kouadio, C. H. Kouakou, E. Emeruwa, Pasres

American Journal of Materials Science and Engineering. 2016, 4(1), 13-19 doi:10.12691/ajmse-4-1-3