Characteristics of Good Stone | Summary and Q&A

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August 4, 2023
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Characteristics of Good Stone

TL;DR

This lesson discusses the 16 important characteristics of a good stone, including appearance, strength, structure, hardness, toughness, heaviness, durability, porosity, seasoning qualities, fire resistance, decomposition, disintegration, reliability, weight, weathering property, workability, and thermal moment.

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Questions & Answers

Q: What is the significance of the appearance and color of a stone?

Highly colored stones are used for architectural purposes, but lighter stones are preferred for better durability.

Q: How is the strength of a stone determined?

The strength of a stone is its ability to sustain pressure or resist crushing force. Stones with a compact fine crystalline texture are stronger, while igneous rocks have the highest compressive strength.

Q: What are the essential properties of a good stone structure?

A good stone should have a closely grained or crystalline structure, uniform texture, and be free from cavities and cracks.

Q: How is the hardness of a stone tested?

Hardness is tested using the Los Angeles abrasion test in the laboratory, but on-field testing can be done by scratching the stone with a knife.

Summary & Key Takeaways

  • Good stones for architectural purposes should be lighter in color as they are more durable compared to darker stones.

  • The strength of a stone is determined by its compactness and fine crystalline texture.

  • A good stone should have a closely grained or crystalline structure, free from cavities and cracks.

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