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What Is Blacktop Made Of?

Blacktop is almost always an asphaltic concrete made from liquid asphalt cement, sand and gravel. If you know much about sand and gravel, then you can start to get your head around how there can be different types of blacktop.

What Is Blacktop Made Of?

Most of us have seen blacktop, or asphalt, on roads and driveways. It‘s a smooth, dark surface that‘s easy to drive on. But what is blacktop made of?

Asphalt is a sticky, black, and highly viscous liquid or semisolid form of petroleum. It may be found in natural deposits or may be a refined product;

it is a substance classed as a pitch. Before the 20th century, the term asphaltum was also used. The primary use of asphalt is in road construction, where it is used as the glue or binder mixed with aggregate particles to create asphalt concrete.

Its other main uses are for bituminous waterproofing products, including production of roofing felt and for sealing flat roofs. The termsasphalt andbitumen are often used interchangeably to mean both natural and manufactured forms of the substance.

In American English,asphalt (orasphalt cement“) is commonly used for a refined residue from the distillation process of selected crude oils.

Outside the United States, the product is often calledbitumen“, while the termasphalt is used for the viscous liquid produced by the process. The first use

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