Rubberized Asphalt: What It Is, Where It's Used, and Driveway Options

Rubberized asphalt is asphalt pavement that includes ground-up rubber, usually from scrap tires. The rubber is either blended into the hot liquid binder before it meets the stone, or added to the mix as a fine aggregate. Road agencies use it to stretch the life of pavement, keep tires out of landfills, and in some cases quiet traffic noise. For homeowners, the most common rubberized product is not paving at all, but crack filler and some sealers.

Asphalt mix types chart → How many tons calculator →

Wet Process vs. Dry Process

There are two main ways to get rubber into asphalt:

• Wet process. Fine crumb rubber is blended into hot asphalt binder and held at high temperature so the rubber swells and reacts with the binder. The product is often called asphalt rubber. It's thicker and more elastic than plain binder.
• Dry process. Crumb rubber is added to the aggregate side of the mix, replacing a small share of the stone or sand. The rubber acts partly as a flexible filler.

There's also terminal-blended binder, where finer rubber is mixed into the binder at a refinery or terminal and shipped ready to use. Specifications, rubber content, and names vary by state agency.

Why Agencies Use It

• Crack resistance. The more elastic binder can resist reflective cracking, where cracks in old pavement work up through a new overlay.
• Thinner overlays in some specifications, because the binder performs better per inch.
• Noise. Some open-graded rubberized surfaces have been reported to reduce tire noise, though results depend on the mix and age of the surface.
• Recycling. Each lane-mile uses a large number of scrap tires.

Performance claims vary widely between studies and climates. Treat any single number you read online with care, including ours; we don't cite performance percentages here because they depend heavily on the mix and conditions.

The Trade-Offs

• Higher cost per ton than conventional mix, because the binder needs special blending equipment and higher temperatures.
• Tighter temperature windows for placing and compacting.
• Availability. It's widely used in some states and rare in others. Many plants that serve homeowners don't make it at all.
• Odor and fumes during production and paving, which some agencies manage with specific controls.

Can You Get a Rubberized Asphalt Driveway?

Possibly, but it's uncommon. Driveway paving is usually done with whatever standard surface mix the local plant runs. Ask your paver whether any plant nearby produces a rubber-modified mix in small quantities. If one does, expect a premium and a minimum order. For a residential drive, the gain may not justify the cost, since driveways carry light loads and rarely suffer the reflective cracking rubber mixes are meant to fight.

Don't confuse rubberized asphalt with poured rubber surfacing, which is loose rubber granules bound with a resin, often used around pools and playgrounds. That's a different product with different installers.

Tonnage Planning

Rubber-modified dense mixes are generally close to conventional hot mix in density, though open-graded rubber mixes are lighter. If a plant gives a density, use it. Otherwise, 145 pounds per cubic foot works for a first pass:

1. Area: 24 × 40 foot driveway = 960 square feet
2. Volume at 2 inches: 960 × (2 ÷ 12) = 160 cubic feet
3. Weight: 160 × 145 = 23,200 pounds
4. Tons: 23,200 ÷ 2,000 = 11.6 tons

The tonnage calculator will do this in seconds. Price per ton for rubber mixes comes from the plant; the cost per ton page gives conventional planning ranges for comparison.

Rubber in Driveway Maintenance Products

This is where most homeowners actually meet rubberized asphalt:

• Crack fillers. Pourable and hot-applied rubberized fillers stretch as cracks move. See our guide to rubberized asphalt crack filler.
• Sealers. Some driveway sealers add rubber or polymer modifiers to improve flexibility. Label claims vary, so compare coverage rates and cure times rather than marketing terms.

Questions to Ask a Paver About Rubber Mixes

• Does any plant within hauling distance make a rubber-modified mix, and in what minimum quantity?
• Is it a wet-process, dry-process, or terminal-blend product, and what is it normally used for?
• What laydown and rolling temperatures does it need, and will a small crew be able to work it before it cools?
• How does the price per ton compare with the standard surface mix you'd otherwise use?
• What density should be used for the tonnage estimate?

If the answers point to a long haul, a big minimum, and a narrow working window, a well-built conventional driveway with good drainage and routine crack sealing is usually the better value.

Bottom Line on Rubberized Asphalt

Rubberized asphalt uses scrap tire rubber in the binder or the mix to make pavement more elastic and crack-resistant. It's a road and highway material first. For driveways, you'll most likely use it as crack filler, and paving with a rubber mix depends on whether a nearby plant makes it.