Road Construction Guides

Application-specific guides for road-building bitumen work — tack coats, prime coats, seal coats, spray rates, and full road-section worked examples.

How Much Bitumen Is Needed for 1 Kilometre of Road? (Full Worked Calculation)

A common civil engineering estimation question, worked through completely with a standard two-lane road cross-section.

7 min readRead

Tack Coat vs Prime Coat vs Seal Coat: What’s the Difference?

All three are thin bitumen applications sprayed onto a surface, but they solve three completely different problems at three different stages of construction.

7 min readRead

Bitumen Emulsion vs Cutback: Spray Rate Differences by Surface Type

Both are ways of making bitumen sprayable at lower temperatures, but they get there through completely different chemistry, with different practical trade-offs.

6 min readRead