Bitumen Calculator

Calculate bitumen quantity from area and application rate. Tack coat: 0.2–0.4 kg/m² for cutback and 0.3–0.6 kg/m² for emulsion over an existing asphaltic layer. Prime coat: 0.65–1.75 L/m² on granular base, and 0.15–0.4 L/m² on concrete or bridge decks. Outputs litres, kilograms, and spray time.

Plan single, double, and triple surface treatments. Binder application ranges from 1.19 to 2.14 L/m² per spray, with cover aggregate from 6.5 to 24 kg/m² depending on nominal aggregate size. Includes a second and third pass breakdown for multi-layer seals.

Estimate the bitumen fraction in hot mix asphalt from total tonnage and binder percentage. Uses the standard formula Qh = HMATT × [Xa ÷ (100 + Xa)]. Typical binder content is 5.0–6.5% by weight of aggregate, with a minimum of 3.0–3.5% for base and wearing courses.

Convert residual binder demand into emulsion or cutback spray volume. Corrects the application rate for water or cutter content: Bc = BD × (parts residual + cutter) ÷ parts residual. Prevents under-application when using diluted CSS-1, CSS-1h, or MC-30 products.

Get detailed cost projections per litre, per kilogram, or per tonne. Plan storage and delivery with drum counts, tanker loads, and bulk tank volume. Adjust unit prices to match local bitumen rates, including cutback and emulsion premiums.

Work in square metres or square yards, and in litres, kilograms, or gallons. Convert application rates between kg/m², L/m², gal/SY, and lb/SY instantly. All calculations, tank volumes, and cost estimates update automatically. Fully functional offline.