1.For a porous material with a bidisperse structure, the conditions bringing about the “opening” of the structure depend primarily on the amount of the pore-forming addition. On passing from a round to an acicular particle shape, the amount of the pore-forming addition necessary for the “opening” of the bidisperse structure falls.2.The strength of a porous material with a bidisperse structure is determined chiefly by its total porosity, and is practically unaffected by the properties of the pore-forming addition.