Plant Ops — RAS (Shingle) Feed
RAS (Shingle) Feed for asphalt plant management.
Shingles carry 20–25% binder — five times RAP — so even a 4% dose returns half a percent of the mix's binder. The catch is that roofing binder is air-blown and brutally stiff: caps exist because cracking resistance, not the heat balance, runs out first. Pair RAS with a soft virgin grade, always.
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.
RAS (Shingle) Feed for asphalt plant management. A free asphalt paving temperature & logistics tool — no sign-up, no upload, instant results in your browser.
About Plant Ops — RAS (Shingle) Feed
Plant Ops — RAS (Shingle) Feed computes the governing relationship binder% = RAS% × Pb_RAS × availability live as you type. Shingles carry 20–25% binder — five times RAP — so even a 4% dose returns half a percent of the mix's binder. The catch is that roofing binder is air-blown and brutally stiff: caps exist because cracking resistance, not the heat balance, runs out first. Pair RAS with a soft virgin grade, always. 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 — RAS (Shingle) Feed
- 1Enter your values — RAS fraction, RAS binder content, Availability, Production (sensible defaults are pre-filled).
- 2Read the live results: Binder contributed, RAS feed rate.
- 3Check the "with your numbers" line to see binder% = RAS% × Pb_RAS × availability substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Plant Ops — RAS (Shingle) Feed?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula binder% = RAS% × Pb_RAS × availability with authoritative sources cited on the page (NAPA — HMA paving handbook & best practices)
- ✓Shingles carry 20–25% binder — five times RAP — so even a 4% dose returns half a percent of the mix's binder.
- ✓Niche-specific defaults give a meaningful worked answer the moment the page loads
Frequently asked questions
What formula does the plant ops — ras (shingle) feed use?+
It evaluates binder% = RAS% × Pb_RAS × availability, 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?+
Shingles carry 20–25% binder — five times RAP — so even a 4% dose returns half a percent of the mix's binder. 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?+
RAS (Shingle) Feed for asphalt plant management. A free asphalt paving temperature & logistics tool. The catch is that roofing binder is air-blown and brutally stiff: caps exist because cracking resistance, not the heat balance, runs out first. 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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