Asphalt, Road Materials & Paving Products worked example

Aggregate Moisture Dry Feed Correction at 68% dry-solids factor: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop dry-solids factor to 68%, then walk the calculation through step by step. Convert wet aggregate feed into an effective dry aggregate tons-per-hour rate using measured production time and dry-solids factor.

The inputs for this scenario

  • Wet aggregate processed: 480 tons (held at the documented default)
  • Production runtime: 4 hr (held at the documented default)
  • Dry-solids factor (100 - moisture %): 68 % (the input this scenario stresses; the baseline uses 94)

Working through the calculation

  • The calculation starts from the formula this tool documents: Wet aggregate feed rate = wet aggregate processed รท production runtime.
  • Corrected dry aggregate feed rate works out to 81.6 dry tons / hr at these inputs, and this is the headline figure for the scenario.
  • Wet aggregate feed rate works out to 120 wet tons / hr at these inputs.
  • Dry-solids factor works out to 68 % at these inputs.
  • Production runtime works out to 4 hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where dry-solids factor sits at 94% and the headline result is 113 dry tons / hr, this scenario comes in 27.66% below the baseline at 81.6 dry tons / hr.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to dry-solids factor, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It uses a single average moisture figure; if piles vary or surface moisture differs from the lab-measured value, the corrected dry rate will drift from reality.

Results at a glance

  • Corrected dry aggregate feed rate: 81.6 dry tons / hr (headline result)
  • Wet aggregate feed rate: 120 wet tons / hr
  • Dry-solids factor: 68 %
  • Production runtime: 4 hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Aggregate Moisture Dry Feed Correction calculator, set dry-solids factor to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.