Different color runways

Some airports like DFW have what looks like asphalt and concrete runways. I’ll try to post a picture. Does anyone know why the materials of runways are different?

Asphalt and Concrete Runways.

In Infinite Flight - Asphalt Runways are black, while Concrete Runways are a light grey.

Screenshot 2024-01-23 at 06.57.22

DFW Runways - credit. Wikipedia.

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typically older runways used concrete because it’s super durible and realible, newer runways generally use ashphalt because it’s much cheaper however it does have some realibilty issues.

So if a concrete runways needs a replacement they will most likely use asphalt today

Also, in my opinion asphalt runways look alot better to

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