Determine the total pore volume or pore area in the 2D image

Determine the total pore volume (or pore area in the 2D images which correspond to pore volume). Determine the total porosity. What can you infer about paste 1 and Paste 2?

Porosity or void fraction is a measure of the void (i.e. \"empty\") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0 and 100%.

porosity = (volume of viods/ total volume)*100