Cold Patch Mix Asphalt Additives & Adhesion Promoters

Pavement patching is one of highway agencies' most widespread and costly maintenance activities. As pavements age, patching is needed to fix potholes that develop. Most cold patching is a temporary fix that lasts only a few weeks and is primarily impacted by the fact that cold patching activities are usually conducted in less-than-ideal weather conditions when the pothole contains abundant water.

What are Cold Mix Asphalt Additives?

Cold mix asphalt additives are chemical solutions that enable asphalt mixtures to be produced and applied without heating. These additives improve coating, workability, and storage stability, making cold mix asphalt an effective solution for road maintenance and repair.

The Role of Additives in Cold Mix Asphalt

Enabling Mixing Without Heat

Cold mix additives allow bitumen to be mixed with aggregates at ambient temperatures, eliminating the need for heating and simplifying production and application.

Improving Coating and Workability

These additives enhance aggregate coating and mixture consistency, ensuring proper handling and placement in a variety of repair conditions.

Improving Adhesion and Moisture Resistance

Proper adhesion is critical to cold mix asphalt performance, particularly in repair applications such as pothole patching. The use of the right adhesion promoter allows the mix to displace water along the sides and bottom of the repair area, ensuring effective bonding to existing pavement.

Without adequate adhesion, cold patches are more susceptible to failure due to poor bonding and moisture infiltration. Well-formulated additives also help ensure proper coating of aggregates and protect the patch from moisture damage after placement.

Benefits of Cold Mix Asphalt Additives

Easy Handling and Application

Cold mix asphalt can be produced, transported, and applied with minimal equipment, making it ideal for quick repairs and remote locations.

Improved Storage Stability

Properly formulated cold mix can be stored for extended periods while maintaining performance and workability.

Reliable Performance in Repair Applications

Cold mix additives support consistent performance in pothole patching, utility cuts, and temporary or permanent repairs.

Applications in Road Maintenance and Repair

Cold mix asphalt additives are used across a variety of maintenance and repair applications, including:

Pothole patching
Utility cuts and trench repairs
Temporary and permanent road repairs
Remote or low-volume road maintenance

These technologies are often used alongside asphalt additives, asphalt emulsifiers and advanced pavement technologies to support a complete pavement performance strategy.

Get more information

Arkema’s Cold Mix Additive Solutions

Arkema manufactures advanced cold mix asphalt additives, including AD-here^® and ColdGrip^® designed to improve adhesion, coating, and overall cold patch performance. These Road Science^®solutions enhance durability and help ensure reliable performance in demanding repair applications.

With expertise in asphalt chemistry and field application, Arkema works closely with customers to deliver solutions tailored to their materials, processes, and performance requirements.