Building Materials Manufacturing calculator
Aggregate Blend Ratio Calculator
Aggregate Blend Ratio supports concrete, asphalt, block, and precast teams checking gradation and material proportions. It helps confirm whether each stockpile fraction matches the mix design before production.
What this calculator does
- Calculate the percentage share of sand, gravel, recycled aggregate, or specialty aggregate in a blend.
- a batch plant needs to verify one aggregate fraction against the total blend
- The result is the aggregate fraction share of the total blend.
Formula used
- Raw aggregate blend ratio = selected aggregate fraction in the blend ÷ total aggregate blend weight
- Aggregate Blend Ratio = raw ratio × conversion multiplier
Inputs explained
- Selected aggregate fraction in the blend: Use selected aggregate fraction in the blend from the same material, product, equipment, batch, shift, or order scope.
- Total aggregate blend weight: Use total aggregate blend weight from the same material, product, equipment, batch, shift, or order scope.
- Percent conversion multiplier: Use percent conversion multiplier from the same material, product, equipment, batch, shift, or order scope.
How to use the result
- Use it during blend setup, gradation checks, stockpile substitutions, and mix-design reviews.
- Moisture, segregation, contamination, and scale accuracy can make the actual blend differ from the estimate.
Common questions
- What is Aggregate Blend Ratio for? Calculate the percentage share of sand, gravel, recycled aggregate, or specialty aggregate in a blend.
- What information do I need before using it? Enter the selected fraction tons, total blend tons, and percent conversion multiplier.
- When is the result only an estimate? Moisture, segregation, contamination, and scale accuracy can make the actual blend differ from the estimate.
- How can I use the result? Use the result to adjust feeders, protect gradation, and avoid out-of-spec concrete or block mixes.
Last reviewed 2026-05-12.