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Asphalt & Aggregates Review Desk

The review scope behind every asphalt, aggregate-base and measurement calculator on Buildcalchub — what gets checked, against which published standards, and how a reported error is handled.

At a Glance

  • Scope: Asphalt & Paving, Aggregate & Base and Measurement & Volume
  • What is reviewed — formula choice, unit conversions, density and compaction assumptions, waste factors, and the 2026 US price bands shown on each page
  • Who does it — Buildcalchub is maintained by a single editor, Sarah Miller. “Review desk” names a documented review scope and its checklist, not a separate staff member or a claimed professional credential
  • Reference basis — published industry standards and public-agency manuals, cited on every page in this scope (see the references block under each calculator)

What This Page Is For

E-E-A-T is only meaningful if it is checkable. Rather than point at a biography we cannot verify for you, this page documents the procedure: the order in which a page in this scope is built, what has to agree with what, and where the underlying numbers come from. Every claim below is something you can test yourself against the cited source.

The Four Checks Every Page in This Scope Passes

  • 1. Methodology — Is the formula the right one for the question? A hot-mix tonnage page multiplies compacted volume by density; it must not apply a loose-volume factor. Pavement thickness follows the AASHTO 1993 structural-number approach for the traffic class, and any page that says otherwise is corrected before publishing.
  • 2. Calculation logic — Do the arithmetic, the unit conversions and the waste / compaction / cure factors reproduce the worked examples printed on the page, and do they match the published reference values (NAPA QIP-128 for HMA construction quality, Asphalt Institute MS-22 for placement, AASHTO T 180 for compaction density, ASTM D6433 for condition survey)? A page is not published until its own example rows recompute from its own formula.
  • 3. Field assumptions — Are the default densities, lift thicknesses and tack-coat rates the values a US contractor would actually plan with, and are they shown as ranges with the source named rather than as single magic numbers? Material properties are taken from the published references; anything that depends on local practice is flagged on the page instead of defaulted.
  • 4. Price calibration — Dollar figures are presented as 2026 US regional bands, each with its source class (supplier ticket, published contractor survey, or home-center quote) labelled. No page states a price as a fact without naming where the band came from.

Standards This Scope Reviews Against

  • NAPA QIP-128 — HMA construction quality: density assumptions (145 lb/ft³ standard HMA, 120 lb/ft³ RAP and millings), lift thickness ratios, joint construction
  • Asphalt Institute MS-22 — Construction of Hot Mix Asphalt Pavements: overlay preparation, tack-coat rates, surface conditions
  • Asphalt Institute MS-19 — Basic Asphalt Emulsion Manual, used for sealer and emulsion comparisons
  • AASHTO 1993 Guide for Design of Pavement Structures — flexible pavement structural number, layer coefficients, traffic-class thickness
  • AASHTO T 180 (Modified Proctor) — maximum dry density and the compaction percentage a base is specified to
  • ASTM D6433 — Pavement Condition Index survey methodology
  • ASTM D8099 — refined-tar sealer specification, used for sealcoat product comparison
  • FHWA Pavement Preservation Treatment Toolbox — treatment windows and service life by treatment type

The same list appears in the Sources block on each published calculator in this scope, so you can go from a number on the page to the document it came from without leaving the site.

What This Desk Does Not Do

  • It does not hold a professional engineering licence, and no page on this site is a stamped or code-approved calculation. Building departments expect footing and structural decisions to come from a licensed designer in your jurisdiction — see the disclaimer.
  • It does not offer individual take-off or bidding services. For a real project, retain a licensed estimator or paving contractor.
  • It does not review concrete & foundation content (that is the Concrete & Foundations Review Desk) or landscaping content (the Landscape & Hardscape Review Desk). Pages outside these three clusters never carry this byline.

Pages Under This Scope

Calculators, guides and project paths in Asphalt & Paving, Aggregate & Base and Measurement & Volume each carry a reviewer byline pointing here plus a dateReviewed stamp. Start at All Calculators and filter by cluster, or read How Much Asphalt Do I Need? and Cubic Yards vs Tons for the underlying conversions.

Corrections

If a number, formula or assumption on any asphalt, aggregate or measurement page looks wrong, send it to contact@buildcalchub.net with the page URL and the source you are comparing against. Corrections are republished with a fresh review stamp, and the superseded version is noted in the changelog entry. That is the only reviewer credential this site claims: an open, reproducible checklist and a public correction path.