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Define porosity in brief

Short answer

Porosity is the ratio of void volume to total volume, expressed as a percentage. High porosity leads to low density, low strength, high water absorption and poor frost resistance, while dense materials like granite have very low porosity.

Explain briefly the property porosity.

Porosity is the ratio of the volume of voids (pores) in a material to its total volume, usually expressed as a percentage.

n=VvV×100n = \frac{V_v}{V}\times 100

A porous material has low density, low strength, high water absorption and low resistance to frost. Brick and stone with high porosity are less durable, while dense materials such as granite have very low porosity.

✓ Answer checked by Claude Opus 5.5 (high effort)

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