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Compacted Volume is the volume of soil after compaction that is done on excavated soil. It represents the reduced volume due to soil compression and removal of air voids during the compaction process.
The calculator uses the formula:
Where:
Explanation: The shrinkage factor represents the specific volume change of soil relative to its water content and is mainly due to clay swelling properties. It indicates how much the soil volume reduces after compaction.
Details: Accurate calculation of compacted volume is crucial for earthwork projects, construction planning, and material estimation. It helps in determining the amount of soil needed for backfilling, calculating transportation requirements, and ensuring proper compaction for structural stability.
Tips: Enter the original volume of soil in cubic meters and the shrinkage factor (typically between 0 and 1). Both values must be positive numbers.
Q1: What is a typical range for shrinkage factor?
A: Shrinkage factor typically ranges from 0.7 to 0.9 for most soils, meaning the compacted volume is 70-90% of the original volume.
Q2: How is shrinkage factor determined?
A: Shrinkage factor is determined through laboratory tests that measure the volume change of soil samples under controlled compaction conditions.
Q3: Does the shrinkage factor vary with soil type?
A: Yes, clay soils typically have higher shrinkage factors than sandy soils due to their swelling properties and water retention characteristics.
Q4: When is this calculation most important?
A: This calculation is particularly important in construction projects involving excavation and backfilling, such as building foundations, road construction, and landscaping.
Q5: Can the compacted volume be greater than the original volume?
A: No, the compacted volume is typically less than or equal to the original volume, as compaction reduces air voids and compresses the soil particles.