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Caltrans Discusses Different Kinds of Pavement in New Video



Caltrans News Flash #122

Date:March 9, 2017
District:Headquarters
Contact:Erin Gallup von Tersch
Phone:(916) 654-4565
Contact:Tamie McGowen
Phone:(916) 657-5060

SACRAMENTO – In this Caltrans News Flash, you'll learn how concrete and asphalt pavements are made, how they are different and why the Department uses both.

Both asphalt and concrete are made from a rock or gravel base, but the material that binds the rock together is different. Cement holds concrete together, and in asphalt, refined oil binds the rock and gravel.

Before placing pavement, Caltrans studies the soil at the site, the traffic the roadway is expected to carry, and the weather to determine which material is best for each location. Concrete handles high-truck traffic, chains and studded tires better, so Caltrans uses it in cities and on mountain passes. Two thirds of California's state highway system is asphalt, which cures faster and is less expensive.

This video can also be viewed at: https://youtu.be/XaLS5jMFYB4.

This Caltrans News Flash is the 122nd in a series of videos highlighting Caltrans' activities that present the wide-ranging and critical work that Caltrans does to enhance California's economy and livability. To see more of these and other videos, search for #CaltransNewsFlash on Twitter or visit http://bit.ly/1ez3LYz.

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Contact Information

General Information:

General Information Line: (916) 654-2852

Media Inquiries:
Find your local Caltrans media contact on our
Public Information Officers page
or call our
Media Line: (916) 657-5060.

You can also call
1-800-427-7623
for current highway conditions or find more information about roads, traffic and travel on
Caltrans' Travel page.

Physical Address:

California Department of Transportation
1120 N Street
Sacramento, CA 95814

Mailing Address:

California Department of Transportation
1120 N Street
MS 49
Sacramento, CA 95814

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