When the porosity of a building material increases, the porosity, density, apparent density, strength, water absorption, Frost resistance, thermal conductivity of the material increases, decreases, remains unchanged, and can not be determined?

As porosity decreases:

Porosity – decreases

Density – decreases

Apparent density – decreases or can’t be determined

Strength – decreases slightly or can’t be determined

Water absorption – likely increases or can’t be determined

Frost resistance – likely decreases or can’t be determined

Thermal conductivity – likely remains unchanged