Why is black asphalt the default material for surfacing streets, especially in hot climates?

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The title is the question.

Maybe it’s the cheapest thing with the right properties, but can’t it be painted with something a little more reflective, that won’t absorbe so much heat from the sun?

In: Technology

29 Answers

Anonymous 0 Comments

It’s cheap and fast. I’ve seen miles of asphalt paved in a single (long)shift. I’ve never seen more than a few hundred feet of concrete pavement done in a day. Interstates use concrete with an asphalt pavement overlay to get the durability of concrete, but the traction and repairability of asphalt pavement.

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