What is porosity?

Porosity is a measure of the void 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%.

Here's a breakdown:

• Definition: <a href="https://www.wikiwhat.page/kavramlar/Porosity%20Definition">Porosity Definition</a> refers to the ratio of void space in a material to its total volume.
• Calculation: It is calculated as: Porosity (%) = (Volume of Voids / Total Volume) * 100.
• Types of Porosity:
  • Effective Porosity: <a href="https://www.wikiwhat.page/kavramlar/Effective%20Porosity">Effective Porosity</a> is the interconnected pore space available for fluid flow.
  • Absolute Porosity: <a href="https://www.wikiwhat.page/kavramlar/Absolute%20Porosity">Absolute Porosity</a> is the total pore space, including isolated pores.
• Factors Affecting Porosity: <a href="https://www.wikiwhat.page/kavramlar/Factors%20Affecting%20Porosity">Factors Affecting Porosity</a> include particle size, shape, packing, and degree of compaction.
• Importance: Porosity is a critical property in various fields:
  • Geology: Influences groundwater flow and reservoir capacity.
  • Material Science: Affects strength, permeability, and density of materials.
  • Soil Science: Determines water retention and aeration.
• Measurement: Porosity can be measured using various techniques, including:
  • Mercury Intrusion Porosimetry: <a href="https://www.wikiwhat.page/kavramlar/Mercury%20Intrusion%20Porosimetry">Mercury Intrusion Porosimetry</a>
  • Gas Expansion Methods: <a href="https://www.wikiwhat.page/kavramlar/Gas%20Expansion%20Methods">Gas Expansion Methods</a>
  • Image Analysis: <a href="https://www.wikiwhat.page/kavramlar/Image%20Analysis">Image Analysis</a>