Soil Swell / Shrinkage Volume Conversion
Convert bank (in-place) cubic yards to loose (truck) and compacted (placed) volume with the load factor and the borrow shortfall. The geotech report governs the percentages.
Formula and source
loose = bank x (1 + swell/100); load_factor = 1/(1 + swell/100); compacted = bank x (1 - shrink/100); fill_shortage = bank - compacted.
Caterpillar Performance Handbook soil-conversion method (swell / shrinkage / load factor) by name; first-principles volume conversion.
Audience
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