Asphalt pavements are made by combining rocks and sand to a particular recipe and then adding asphalt cement as the black sticky glue that holds the pavement together. ... Therefore, the rocks and sand and asphalt cement have to be heated to about 300°F before being mixed together in a large rotating drum mixer.

What is asphalt and how is it made?

Asphalt is a sustainable paving solution made from a mixture of aggregates, binder, and filler. Aggregates are processed mineral materials such as crushed rock, sand, gravel, slags, or various recycled materials. Binder is used to unite the aggregates together to form a cohesive mixture.

Where do they get asphalt from?

Where Does Asphalt Come From? While asphalt can still be found in its natural state, today's asphalt is typically processed from petroleum. Oil wells supply petroleum to oil refineries, where it is separated into various factions, one of which – from the heaviest part of petroleum– is asphalt.