ENVIRONMENTAL GEOTECHNICS CE-488 Lecture No. 18 Prof. D N Singh - - PowerPoint PPT Presentation

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ENVIRONMENTAL GEOTECHNICS CE-488 Lecture No. 18 Prof. D N Singh - - PowerPoint PPT Presentation

ENVIRONMENTAL GEOTECHNICS CE-488 Lecture No. 18 Prof. D N Singh Department of Civil Engineering Mercury Intrusion Porosimetry (MIP) Geomaterials are composed of wide range of particle sizes and shapes and are porous in nature. A


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ENVIRONMENTAL GEOTECHNICS

CE-488 Lecture No. 18

  • Prof. D N Singh

Department of Civil Engineering

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  • Geomaterials are composed of wide range of particle sizes and

shapes and are porous in nature.

  • A knowledge of pore structure of these materials is important as it can

give insight in to both the microstructure and the performance.

  • Rather than measuring the porosity, It becomes more informative if the

manner in which volume is distributed With respect to pore size.

Mercury Intrusion Porosimetry (MIP) Dead end Closed Inter-connected Passing

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Non-porous solids (Extremely low surface area) Porous solids medium high surface area, pore volume and dimension Particulates particle size and surface area Catalysts: activated sites on porous support or powder

Porosity

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Conical Slits Cylindrical Spherical or Ink Bottle Interstices

Shape of Pores

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Ultra Pycnometer

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Mercury Intrusion Porosimeter Gas Porometer