Calculate the compacted volume required for a platform, site or trench. Estimate loose material, weight and truck loads.
Calculate how much loose material is required to achieve a target compacted volume and estimate weight and truck loads.
The factor and density are completed automatically according to the material, but they can be changed.
First, determine the final volume that the compacted material must occupy.
For a rectangular area, multiply length by width and thickness or depth.
An additional factor is then applied to compensate for the reduction in volume during compaction.
General formula
Loose material = compacted volume × factor
Loose volume is the material volume before compaction. Compacted volume is the final volume after the material has been placed and compacted.
Material decreases in volume during compaction, so an additional amount must be supplied to achieve the required final level and density.
It depends on the material, moisture, equipment and required density. An initial estimate may range from 10% to 30%, but it should be technically verified.
The total loose material volume is divided by the usable truck capacity and rounded up.