What is HA5 asphalt coating?

What is HA5 asphalt coating?

HA5™ Asphalt Preservation HA5™ is a High Density Mineral Bond uniquely emulsified with a near neutral charge that is able to hold a proprietary blend of fine aggregates. While it is essential to prevent oxidative damage from moisture, it is just as critical to protect against oxidative damage on asphalt from UV rays.

What is high density mineral bond?

High Density Mineral Bond (HA5) was specifically engineered to preserve relatively new asphalt surfaces through denial of oxidative damage at the surface by UV rays and within small cracks and fissures created by moisture infiltration.

What is the role of Ha5 in asphalt preservation?

HA5® was developed to meet the demand for effective asphalt preservation on residential roadways without the negative side effects of chip seals or slurry seals. Specifically engineered to preserve the native asphalt binder, HA5 is exceptional at preventing oxidative damage.

How much cracking is found in Ha5 treated asphalt?

The HA5 treated section had sample areas examined that calculated to an average .007 of the surface experiencing cracking and the polymer enhanced asphalt emulsion sampled road surface was found to have .06 of the area with cracking.

How does Ha5 protect against oxidative damage?

Limiting oxidative damage from moisture is fundamental to HA5’s preservation qualities. But just as critical to the prevention of oxidative damage from moisture is preventing oxidative damage from UV rays. UV rays are strong throughout the western U.S., especially in higher elevations as well as desert regions.

What are the results of the Ha5 treatment?

Reduced oxidative hardening of the native binder resulting from protection by the HA5 treatment Extension in life (or a slowdown of oxidative aging, or reduction in age hardening) of ~67%. These results indicate that the HA5 treatment indeed slows down the oxidative aging process resulting in a significant extension in life.