Tennesee’s Pavement Preservation and Asphalt


Extending the life of the Volunteer State’s Asphalt Assets.

Tennessee is in the midst of a pavement preservation revolution. Like many communities around the country, the Volunteer State has been impacted by a combination of population growth and rising construction costs.

Increases in building materials and labor costs have caused organizations to rethink how they manage their asphalt assets.

That’s where we come in. For over 20 years Holbrook Asphalt has been helping Cities, Counties, School Districts, and Private Communities achieve the maximum extension of their asphalt life for every dollar spent. Our Pavement Preservation Consultants pride themselves on their ability to stay on the cutting edge of asphalt maintenance technology and provide knowledge based on experience to help you choose the right treatment for the right surface at the right time.

Our Work Around the Country

Fourteen years ago, the city made the difficult decision to focus the budget away from the worst roads and toward the best roads. The strategy required educating the public, and it has paid off. The results are better roads with less of a financial burden on taxpayers. Your community can do it too.

Municipal agencies are constantly working to try to get more “bang for their buck” when it comes to taking care of their roads. Every agency’s situation is different, but these Streets Department Managers and Public Works Directors have discovered the benefits of working with HA5.

HA5 High Density Mineral Bond is actively working to extend the life of Tennessee’s asphalt assets. We’ve highlighted some of 1-2 year old applications in Lakeland, Arlington, Germantown and Mt. Juliet.

Join our Tennessee Customers who have chosen HA5 High Density Mineral Bond

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Nashville Tennessee asphalt maintenance and pavement preservation

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Montgomery County Tennessee Asphalt Maintenance and Pavement Preservation

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kingstport tn HA5


Tennessee’s Pavement Preservation Experts

Extending the life of your asphalt assets is what we do and its what we’re passionate about. With over 20 years of experience, we’ve partnering with some of the largest pavement mangaging organizations across multiple states to extend the life of their asphalt assets.

We’ve been able to provide the area’s highest quality services by dedicating ourselves to innovation and customer service. This dedication to using the highest quality products that provide the most value over the greatest number of years is why we utilize HA5 High Density Mineral Bond. HA5 was tested for years before it was brought to market, and is the only product that meets the rigorous qualifications of the High Density Mineral Bond Speficication. We are proud to be the only company in Tennessee that can deliver the quality and longevity that HA5 has to offer.

We’re proud to serve some of Tennessee’s largest metro areas. We operate in Nashville, Memphis, Knoxville, Chattanooga, Gatlinburg, and all the surrounding areas. 

Engineered to Preserve

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. As a result, you will have streets that last longer and cost less to own.

What is HA5

HA5 is arguably the fastest-growing trend in pavement preservation, now in use by over 200 public agencies. Meeting the stringent demands of a High Density Mineral Bond, HA5 is uniquely emulsified with a near neutral charge that is able to hold a unique blend of fine aggregates. 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 Ultraviolet (UV) radiation. HA5 combats oxidation from UV by including limited amounts of specific polymers to reflect damaging UV rays.

HA5 features include:

  • A specialized, non-ionic emulsion specifically engineered to carry mineral types that are not compatible with anionic and cationic emulsions.
  • A blend of ultra-dense, angular-shaped fine aggregates formerly unavailable in a thin surface treatement.
  • A combination of specific polymers that combat oxidation by deflecting Ultra-Violet Rays.

The former head of pavement materials at the country’s largest state DOT, published research findings that identified pavements with HA5 High Density Mineral Bond installed had a 67% delay in the age-hardening of the asphalt. Keeping asphalt flexible prolongs the useful life of the pavement and reduces cracking resulting from pavements becoming brittle.



“Using conventional as well as leading-edge testing methods to identify the age hardening of the asphalt binders, researchers have identified a 67% delay in the age hardening of the asphalt binder with HA5 installed as a pavement preservation strategy. This ability to reduce flexibility loss supports an in-field case study where after just a four-year period a side-by-side comparison identified cracking to be reduced by nearly 9 times with HA5 installed.”

Dr. Shakire Shatnawi, P.h.D., P.E. "Transportation Research 20220"

Former State Pavement Engineer & Division Chief at Caltrans with 30 years of experience in pavement design, management, and preservation

Tested, Proven Performance

An evaluation was completed comparing HA5’s performance in a side-by-side comparison with another treatment. On one section, a commercially available polymer-enhanced asphalt emulsion was installed within a week of an adjoining HA5 installation.

The original paving of both sections was done as one project nine years before the side-by-side maintenance treatments were installed.

Each of the treated sections had multiple crack samples taken. 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. That’s an astounding 857% more cracking in the non-HA5 treated pavement compared to the road having had HA4 installed.

Owners and managers responsible for asphalt roads and parking surfaces realize significant reduction in pavement lifecycle costs with HA5 due to the asset preservation qualities and durability of the installations. In use by public agencies nationwide, it is also the choice for school districts, religious organizations, medical providers, and various business types for asset preservation.

Research on binder elasticity and pavement permeability proves that asphalt treated with HA5 significantly increases the useful life of asphalt pavement and therefore lowers the cost of transportation infrastructure.

  • Highest Return on Investment (ROI)
  • Highest Pavement Condition Index (PCI)
  • Highest Public Acceptance Rating (PAR)

There is no one-size-fits-all tool in the preservation toolbox, but for subdivision roadways, HA5 provides the highest benefit per dollar spent.

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