Tuesday, February 3, 2015

Transportation Defined: Asphalt

Blog-2015-0203-asphalt A view of an asphalt sample and a rubberized asphalt sample, right. When someone hears the word “asphalt,” they might picture the road that they drive on, but asphalt is actually one component of that surface...

We recently dropped by ADOT’s binder lab and learned all about asphalt and the testing that ADOT conducts. We’ll share that information with you soon, but for today, we thought we’d start off by showing you a couple photos of asphalt – the thick, sticky, black substance that acts as a binder when mixed with aggregate.

Asphalt, which is basically the residual hydrocarbons that are left over when oil is distilled, has multiple uses. At ADOT we use it for road paving.

You’ll notice the photo at left looks smooth and the one at right looks a little chunky. That’s because the sample on the right is rubberized asphalt and already has the crumb rubber mixed in (you can watch this video to get a detailed look at how rubberized asphalt is made).

Stay tuned … we’ll have more on asphalt coming up soon. In the meantime, if you’d like to learn more about how ADOT evaluates the materials used to build a road, please revisit these previous posts.

Transportation Defined is a series of explanatory blog posts designed to define the things you see on your everyday commute. Let us know if there's something you'd like to see explained ... leave a comment here on the blog or over on our Facebook page!
Posted by Angela DeWelles   |  Labels:  ASPHALT, Materials-Testing, Rubberized-Asphalt, Transportation_Defined


The Arizona Ombudsman – Citizens Aide helps you resolve ongoing issues with State Agencies.

Civil Rights

Pursuant to Title VI of the Civil Rights Act of 1964, the Americans with Disabilities Act (ADA) and other nondiscrimination laws and authorities, ADOT does not discriminate on the basis of race, color, national origin, sex, age, or disability. Persons that require a reasonable accommodation based on language or disability should contact ADOT’s Civil Rights Office at Requests should be made as early as possible to ensure the State has an opportunity to address the accommodation.

De acuerdo con el Título VI de la Ley de Derechos Civiles de 1964, la Ley de Estadounidenses con Discapacidades (ADA por sus siglas en inglés) y otras normas y leyes antidiscriminatorias, el Departamento de Transporte de Arizona (ADOT) no discrimina por motivos de raza, color, origen nacional, sexo, edad o discapacidad. Las personas que requieran asistencia (dentro de lo razonable) ya sea por el idioma o discapacidad deben ponerse en contacto con la Oficina de Derechos Civiles de ADOT en Las solicitudes deben hacerse lo más antes posible para asegurar que el Estado tenga la oportunidad de hacer los arreglos necesarios.