Which type of asphalt mix is known as a cold mix?

The type of asphalt mix known as a cold mix is emulsified asphalt mixes. These mixes utilize asphalt emulsions, which are created by mixing asphalt with water and an emulsifying agent. The result is a stable, workable mixture that can be used at low temperatures, making it ideal for patching and repairing surfaces without the need for hot asphalt.

Emulsified asphalt mixes can be applied in various conditions, often leading to a quick and effective solution for road maintenance. Their cold application nature allows for flexibility in construction schedules and reduces the risk of burn injuries related to handling hot materials.

In contrast, warm-mix asphalt refers to mixes that are produced and laid at lower temperatures than traditional hot mixes, but they still require some heat in the production process. Dense graded asphalt and open-graded asphalt mixes are types used in specific applications, but they primarily rely on hot or warm asphalt temperatures for mixing and compaction, which differentiates them from cold mix options like emulsified asphalt.