Characteristics Of Good Building Stones | Criteria For Selection Of Stones | Stones | Construction Materials | By Akhand Dutta

Characteristics Of Good Building Stones | Criteria For Selection Of Stones | Stones | Construction Materials, Structure: The stones should have a uniform texture, free from cavities, cracks and patches. The stones should not have visible stratification.

Characteristics Of Good Building Stones


Structure:

  • The stones should have a uniform texture, free from cavities, cracks and patches.
  • The stones should not have visible stratification.

Characteristics Of Good Building Stones | Criteria For Selection Of Stones | Stones | Construction Materials


Appearance:

  • The stones should not be dull in appearance.
  • The stones should have fine compact structure for face work.
  • Dark colour stones should not be used as it's colour fades with time.

Strength:

  • The stones should be strong and durable.
  • The compressive strength of building stone should range between 60 to 200 N/sq. mm

Weight:

  • Heavyweight stones are used for stability of structures of damns, retaining walls, etc.
  • Lightweight stones are used for arches, vaults, damns, etc.

Hardness:

  • Hardness is determined by the Mohs Scale.
  • Hardness is important for floors, pavements, aprons of bridges, etc.

Characteristics Of Good Building Stones | Criteria For Selection Of Stones | Stones | Construction Materials
Pavement

Toughness:

  • Toughness is the measure of impact which can be withstood by a stone.
  • Tough stones should be used for vibratory and moving loads anticipation.

Porosity:

  • Porosity is the property which depends on the mineral constituents, cooling time and structural formation.
  • A porous stone usually disintegrates due to absorbed rainwater and later causes cracking.

Characteristics Of Good Building Stones | Criteria For Selection Of Stones | Stones | Construction Materials
Porous Stones

Some Special Points:

  • A good building stone should be free from Calcium Carbonate, Oxides of iron having different coefficients of thermal expansion. 
  • The stone should be well seasoned.
  • Stone's resistance against wear and tear should be high.
  • Stone should always be workable, i.e, cutting, dressing and bringing out in the desired shape and may not be uneconomical.  
  • The specific gravity of stones should range from 2.3 to 2.5.




*Self Typed
*Source- Internet, Books and Self-Analysis

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About the Author

"Meet Mr. Akhand Dutta, the visionary Founder and Owner of CEWA (Civil Engineering With Akhand Dutta). Currently, The Placement Coordinator for Structural Engineering at the prestigious National Institute of Technology, Kurukshetra. With a lif…

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