Artificial sand, also known as manufactured sand (M-sand), is produced by crushing rocks and quarry stones to the desired shape and size. It has several properties that make it a suitable substitute for natural sand in construction activities:
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Particle Size and Shape:
- Controlled Gradation: Artificial sand can be produced with a controlled particle size distribution, ensuring consistency and uniformity.
- Cubical Shape: The crushing process often results in more angular and cubical-shaped particles, which can improve the binding quality of the concrete.
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Purity:
- Free from Impurities: It is often cleaner compared to natural sand, as it is washed to remove silt, clay, and other impurities.
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Strength and Durability:
- Higher Strength: Its consistent quality can contribute to higher strength and durability in concrete and mortar.
- Better Bonding: The angular particles provide better interlocking and bonding properties.
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Workability:
- Although it can sometimes be less workable due to its angular shape, proper mix design adjustments can enhance workability.
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Environmental Impact:
- Using manufactured sand helps reduce the environmental impact of mining natural sand, contributing to sustainability in construction practices.
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Water Demand:
- Higher Water Demand: It might require slightly more water in the mix because of the angular and rough surface texture of the particles.
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Consistency:
- Greater Control: Manufacturing allows for greater control over the properties, leading to consistent quality and performance.
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Cost:
- Economical: Artificial sand can sometimes be more economical than natural sand, especially in areas where natural sand is scarce or expensive.
These properties make artificial sand a preferred choice in many construction projects for concrete production, plastering, and other applications.
