Field glossary

Tack coat

A light asphalt-emulsion spray that bonds the new overlay to the existing surface so the layers act as one

Used across 3 Anvilfield field guides, most in Paving.

Also defined as

A thin sprayed asphalt emulsion that bonds a new asphalt layer to the asphalt surface below it
Asphalt emulsion on the walls and bottom that bonds the new patch to the old pavement

Where this shows up