What is asphalt?
As an Amazon Associate, AsphaltTons.com earns from qualifying purchases. Product links below are sponsored. Planning estimates only — not contractor bids.
What is asphalt? In driveway and road work, it is a pavement mix: crushed stone and sand (aggregate) coated with a sticky petroleum binder (bitumen / asphalt cement), produced hot at a plant, trucked to the site, paved to thickness, and compacted with rollers.
If you typed asphalt what is it or what is the asphalt under your car, that black surface is almost always hot-mix asphalt (HMA) — not “tar,” and not the same product as asphalt roof shingles.
Estimate how many tons you need →Asphalt vs bitumen vs “tar”
People use the words loosely. Bitumen (asphalt binder) is the black glue. Asphalt in everyday U.S. paving talk usually means the finished mix — aggregate plus binder. Old coal-tar pavements are a different material; modern driveway paving is asphalt mix.
Sealcoat, crack filler, and bagged cold patch are related maintenance products. They are not plant hot mix for a full pave.
What you see on paving day
- Trucks deliver mix that is still hot and workable.
- A paver spreads a uniform mat.
- Rollers densify the mat so it holds traffic once cool.
Thickness, base stone underneath, and drainage matter as much as the mix itself. For a deeper plant-to-paver walkthrough, see how is asphalt made. For heat and safety on site, see how hot is asphalt when paving.
Driveway asphalt is not roof asphalt
Roofing uses asphalt in shingles and membranes — factory products built for weatherproofing a roof deck. Driveway hot mix is a structural pavement designed for tires and freeze–thaw. Same family of binder chemistry; different products and jobs. Details: what is an asphalt roof.
Millings and recycled asphalt
Old pavement ground up becomes millings (RAP). Plants often blend RAP into new mix. Yards also sell millings as a cheaper driveway or lane surface — useful, but not identical to new HMA. See what is asphalt millings and the millings calculator.
Planning tons and cost
Once you know what is asphalt as a product, the next questions are thickness and tonnage. Use the home asphalt calculator or driveway tool. Material and installed prices are local — start with cost per ton and driveway cost drivers, then get quotes.
Bottom line
What is asphalt? Aggregate stuck together with bitumen binder, mixed and placed hot, then rolled dense. That is the asphalt most homeowners mean when they ask what is the asphalt on the driveway — and that is what AsphaltTons helps you size in tons.
FAQ
Is asphalt the same as concrete?
No. Concrete is cement-bound; asphalt uses bitumen binder and is typically placed hot and compacted. Cost and maintenance paths differ.
What is asphalting?
Asphalting usually means paving or resurfacing with asphalt mix. See what is asphalting.
What is asphalt made of?
Mostly crushed aggregate plus a small share of asphalt binder. Full answer: what is asphalt made of.