Preparation of Porous Materials by Magnesium Phosphate Cement with High Permeability

Figure 2

SEM micrographs of the porous MPC with borax contents of 4% in (a), 7% in (b), and 10% in (c); with CF contents of 1.0% in (d), 1.5% in (e), and 2.0% in (f); with zinc powder contents of 0.5% in (g), 1.0% in (h), and 1.5% in (i); and with W/S ratios of 0.14 in (j), 0.16 in (k), and 0.18 in (l).