Plant Ops — Cold-Feed Proportioning
Cold-Feed Proportioning for asphalt plant management.
Belt scales weigh water as if it were stone — a bin running 4.5% moisture must feed 4.5% MORE wet tonnes to deliver its dry share. Gradations that drift after rain aren't the crusher's fault; they're moisture corrections nobody updated at the cold feeds.
Formula
Note: Paving estimates only — the project mix design, agency specification and the plant's QC data govern. Temperature models are simplified; verify with an infrared gun and density gauge on the mat.
Cold-Feed Proportioning for asphalt plant management. A free asphalt paving temperature & logistics tool — no sign-up, no upload, instant results in your browser.
About Plant Ops — Cold-Feed Proportioning
Plant Ops — Cold-Feed Proportioning computes the governing relationship wet rate = dry demand × (1 + moisture) live as you type. Belt scales weigh water as if it were stone — a bin running 4.5% moisture must feed 4.5% MORE wet tonnes to deliver its dry share. Gradations that drift after rain aren't the crusher's fault; they're moisture corrections nobody updated at the cold feeds. Defaults are pre-filled with realistic values for this exact scenario, and the worked example substitutes your numbers step by step so the math is never a black box.
How to use Plant Ops — Cold-Feed Proportioning
- 1Enter your values — Total production, This bin's share, Bin moisture (sensible defaults are pre-filled).
- 2Read the live results: Wet feed rate to set.
- 3Check the "with your numbers" line to see wet rate = dry demand × (1 + moisture) substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Plant Ops — Cold-Feed Proportioning?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula wet rate = dry demand × (1 + moisture) with authoritative sources cited on the page (NAPA — HMA paving handbook & best practices)
- ✓Belt scales weigh water as if it were stone — a bin running 4.5% moisture must feed 4.5% MORE wet tonnes to deliver its dry share.
- ✓Niche-specific defaults give a meaningful worked answer the moment the page loads
Frequently asked questions
What formula does the plant ops — cold-feed proportioning use?+
It evaluates wet rate = dry demand × (1 + moisture), exactly as published. Sources: NAPA — HMA paving handbook & best practices. The substituted worked example on the page lets you verify every step against the textbook.
How should I read the result — and how far can I trust it?+
Belt scales weigh water as if it were stone — a bin running 4.5% moisture must feed 4.5% MORE wet tonnes to deliver its dry share. Paving estimates only — the project mix design, agency specification and the plant's QC data govern. Temperature models are simplified; verify with an infrared gun and density gauge on the mat.
When is this calculator the right tool for the job?+
Cold-Feed Proportioning for asphalt plant management. A free asphalt paving temperature & logistics tool. Gradations that drift after rain aren't the crusher's fault; they're moisture corrections nobody updated at the cold feeds. For neighbouring scenarios, the related tools below cover the same engine with different presets.
Do I need to install anything or create an account?+
No. The tool is pure client-side JavaScript: open the page and it works, offline once loaded, with no account, no quota and no data leaving your device.
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