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Expert guides on bitumen calculation, asphalt mix design, and pavement engineering. Free tutorials, formulas, and practical tips for contractors and engineers.

Latest Articles

Guides & Technical Resources

In-depth articles covering bitumen quantities, mix design, spray rates, roofing systems, and cargo calculations.

Asphalt paving machine laying hot mix on a road construction project
Road Construction

How to Calculate Bitumen Quantity for Road Construction

Step-by-step formula, layer-by-layer worked examples, density reference values, and typical binder content for every road type.

📅 March 2026  ·  ⏱ 8 min Read More →
Asphalt mix design laboratory testing for optimum bitumen content
Mix Design

Bitumen Content in Asphalt: How to Calculate & Optimise

How to calculate bitumen percentage, determine optimum bitumen content using Marshall and Superpave methods, and interpret extraction test results.

📅 March 2026  ·  ⏱ 10 min Read More →
Torch-on modified bitumen membrane application on a flat commercial roof
Roofing

Modified Bitumen Roofing Calculator & Guide

Coverage rates, layer calculations, roll counts, and worked examples for flat roof waterproofing systems using SBS and APP modified bitumen membranes.

📅 March 2026  ·  ⏱ 7 min Read More →
Bitumen spray tanker applying chip seal surface dressing to a rural road
Surface Dressing

How to Calculate Bitumen Spray Rate for Chip Seal

Design rate tables, emulsion vs neat bitumen conversion, tanker calibration guidance, and worked examples for chip seal and surface dressing projects.

📅 March 2026  ·  ⏱ 9 min Read More →
Industrial bitumen storage tanks at a refinery for bulk cargo calculations
Cargo & Density

Bitumen Density, Volume & Cargo Calculations

Volume to mass formulas, density by grade, temperature correction factors, bulk cargo quantity calculations, and storage tank planning guidance.

📅 March 2026  ·  ⏱ 9 min Read More →
Road Calculator Estimate layer-by-layer paving quantities after reading the road quantity guide. Material Calculator Apply optimum bitumen content and mix density assumptions to real project dimensions. Rate Calculator Turn chip seal and surface dressing formulas into actual spray rates and quantities. Roofing Calculator Calculate modified bitumen roof sheets, rolls, and material needs from the roofing guide.
Free Tools

Popular Calculators

Instant, professional-grade bitumen and asphalt calculators — no sign-up required.

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Asphalt Tonnage Calculator
Calculate volume to weight for any mix type and road layer.
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Road Calculator
Full road pavement quantity and cost estimation for multi-layer designs.
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Material Calculator
Estimate bitumen, aggregate, and filler quantities by mix design.
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Cost Calculator
Total project cost with material and installation rates in 7 currencies.
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Rate Calculator
Calculate application rates, spray rates, and unit conversions.
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Roofing Calculator
Modified bitumen roofing quantities, rolls, and material costs.

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