Pit sand is a type of sand that is found in naturally occurring deposits within the soil. Specifically, it's excavated from pits dug into the ground, usually at least 1 to 2 meters deep.
Characteristics of Pit Sand
| Characteristic | Description |
|---|---|
| Location | Found in soil deposits |
| Excavation | Extracted by digging pits in the soil |
| Depth | Typically found at depths of 1 to 2 meters or more |
| Color | Reddish-orange |
| Shape | Angular |
| Salt Content | Free of salt |
| Impurities | Usually mixed with clay, organic materials, and iron oxide coating |
How is Pit Sand Obtained?
- Excavation: Pits are dug into the soil to reach the sand deposits.
- Extraction: The sand is removed from these pits.
- Separation: Once extracted, the sand must be processed to remove impurities like clay, organic materials, and the coating of iron oxide. This processing prepares the sand for its intended uses.
Uses of Pit Sand
After purification, pit sand is ideal for:
- Mortar work: Its texture and composition make it suitable for creating strong mortar.
- Concrete work: Pit sand is often used in concrete mixes due to its strength and ability to bind with cement and aggregate.
In summary, pit sand is a naturally occurring sand excavated from soil pits, and after processing, it is a valuable material in construction.
