![]() ![]() Once the asphalt cools to the surrounding air temperature, it is strong enough to withstand automobile traffic. When roads, parking lots or driveways are built using asphalt construction, hot asphalt (bitumen mixed with fine aggregate) is poured onto a bed of heavier aggregate and then pressed into it with a steamroller. Its binder, however, is bitumen, a dark, sticky substance derived from crude oil. Like concrete, asphalt is made using aggregate. As the mixture dries, it forms a stiff, unforgiving solid that is prone to cracking and breaking, especially if the surface beneath it is not perfectly smooth. The cement acts as the binder in concrete, holding the aggregate together. Asphalt Roads made?Ĭoncrete is made using aggregate (like crushed rock and sand), along with cement and water. ![]() Also, asphalt road provides a little better safety of the vehicle against snow and skidding. However, asphalt paving costs far less than concrete paving. What We KnowĬoncrete roads are highly durable and more environmentally friendly as compared to asphalt roads. asphalt roads has been long been a topic for environmentalists, engineers, and car manufacturers. The long debate of the better product of concrete vs. ![]()
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