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Asphalt Glossary of Terms

FAQs • Asphalt Glossary of Terms
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Asphalt Emulsion Mix (Cold)


A mixture of unheated mineral aggregate and emulsified (or cutback) asphalt binder. It can be plant-mixed or mixed in-place.

Asphalt Emulsion Mix (Warm)


A mixture of asphalt emulsion and mineral aggregate usually prepared in a conventional hot mix asphalt plant at a temperature less than 95°C (200°F). It is spread and compacted at a temperature above 65°C (150°F).

Asphalt Emulsion Slurry Seal


A mixture of slow-setting emulsified asphalt, fine aggregate, and mineral filler with a slurry consistency

Asphalt Leveling Course


A course of hot mix asphalt of variable thickness used to eliminate irregularities in the contour of an existing surface prior to placing the subsequent course.

Asphalt Tack Coat


A relatively thin application of asphalt binder applied to an existing asphalt concrete or PCC surface at a prescribed rate. Asphalt emulsion diluted with water is the preferred type. It is used to form a bond between an existing surface and the overlying course.