About Us

RockAsphalt© believes you shouldn’t compromise on the quality of the ground you walk on. Since 1895, we’ve continuously engineered our natural asphalt to be a permanent, clean, and safe solution for all your road maintenance needs from pothole repair to new road construction. Successfully paving the road ahead starts with changing the road you’re on.


Thousand Miles Of Road


Years in Operation


Tons Of Asphalt (mil)

Our History

Five Generations Of Natural RockAsphalt©

Some people claim that the story of RockAsphalt© begins in 1885 when the Lathe Carbon Company first mined bitumen outside of Uvalde, Texas. Others argue it wasn’t until the early 1890’s when the city of San Antonio used bituminous Anacacho limestone to pave downtown Crockett Street. Still others say the story only really starts in 1928, when cold-mix-cold-laid asphalt began to be shipped to New York City, Philadelphia, and other northeastern states to compete against natural bitumen materials imported from Trinidad.

But we like to think the history of natural rock asphalt actually begins much earlier — 70 million years ago in fact, if you ask most geologists.

It was then during the late Cretaceous period when diagenetic processes first began to transform carbon sediments into the rock we now call Anacacho limestone. Later when pressure from surrounding rock formations caused migrating hydrocarbons to permeate that porous limestone, the result was a unique bitumen impregnated rock, or what geologists today refer to as “native asphalt” or “natural asphalt.”

Granted, when most people think asphalt, it’s not natural but manufactured asphalt that comes to mind. Why? Well, as demand for paved roads increased sharply after World War II, more and more asphalt material had to be artificially manufactured from distilled crude oil and rock aggregate to keep up.

The deposit we mine in the southwest corner of Uvalde County is one of the largest natural asphalt formations in the world, and the bitumen-imbued limestone creates a unique asphalt repair that can’t be replicated.

That’s why countless cities and states rely on all-natural RockAsphalt©. Since 1895, hundreds of millions of tons of natural rock asphalt have been shipped to municipalities and industrial clients all across the United States. But the biggest and most loyal customer over the last hundred years?

The Texas Department Of Transportation.

There’s a reason state DOT’s and municipalities have trusted our material to pave highways, runways, and other critical infrastructure for over a century. If you’re looking for a durable, high-performance asphalt, we promise you won’t find anything better anywhere. And our family’s been mining and producing natural asphalt for over five generations, so we take that promise seriously. Providing our clients with one-of-a-kind RockAsphalt© is a family tradition around here — and one we’re proud to uphold.

Our Mission

We at RockAsphalt© know how much the world depends on well-functioning roads and runways. That’s why we’ve made it our mission to provide municipalities and contractors with a quality pavement repair they know they can trust. By serving the men and women who maintain our infrastructure, we do what little we can to help keep the world productive, secure, and connected.

John Blades

CEO, RockAsphalt©

Our Team

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Our Values & Vision

There’s more to RockAsphalt© than just great material. Learn about the values that guide our day-to-day operations and shape our work culture.


We acknowledge and take responsibility for our mistakes. Through transparency, we build trust.


We give every project and task our best. We are proud to claim and present the work we produce.


We recognize no obstacle is insurmountable; we are not defeated by challenges. Instead, we actively work to find solutions.


People aren’t a resource, they’re individuals with innate value that are to be treated with dignity and respect. We draw from each other’s experiences rather than expecting conformity. Kindness and patience aren’t just a business value, they’re the right thing to do.


We recognize the world and business landscape is constantly evolving and know that we too must continually evolve to stay relevant. We continue to learn and grow as individuals and as a company.

Ready to stop fighting with Cold & Hot Mix?

RockAsphalt© replaces cold and hot mix making road repair of all sizes fast, clean, simple and permanent the first time.

Try it for youself and learn why crews love it.

Get your free sample bags and have your team see how fast and easy it is to permanently fix potholes.