Table 3: General porosities by the pore sizes.

Samples groupsPore sizes (ppi)Solid densities (g/mm3) ( )Porous densities (g/mm3) ( )General porosities in percent ( ) (%)

A10 (±3)0.00880.000890.7
B20 (±3)0.00880.001781
C30 (±3)0.00880.002768.8