Can You Cut Asphalt With a Concrete Diamond Blade?
Over 40 years of experience with diamond tools and helping thousands of contractors have provided many insights. This is one of the most common jobsite questions.
Short answer:
⚠️ Yes — but you shouldn’t.
Using a concrete blade on asphalt will usually destroy the blade quickly and cut poorly.
Here’s why.
Why Asphalt Destroys Concrete Blades
Asphalt is very different than concrete.
Asphalt is:
• Softer
• Abrasive
• Sticky when hot
• Includes tar and aggregate
Concrete is:
• Hard
• Dense
• More consistent material
Because of this difference, asphalt requires a completely different blade design.
What Happens If You Use the Wrong Blade
Contractors who use concrete blades on asphalt usually see:
⚠️ Segments disappear quickly
⚠️ Blade wears extremely fast
⚠️ Cutting becomes slow
⚠️ Blade undercuts or may lose segments
This is because asphalt wears the metal bond too fast.
Why Asphalt Blades Are Different
True asphalt blades have:
• Harder metal bonds
• Undercut protection segments
• Wide gullets for debris removal
• Often larger segments
These features help the blade survive abrasive asphalt grinding.
Concrete Blade vs Asphalt Blade
| Feature | Concrete Blade | Asphalt Blade |
|---|---|---|
| Bond hardness | Soft bond | Hard bond |
| Segment protection | None | Undercut protection |
| Wear resistance | Moderate | High |
| Best material | Concrete | Asphalt / green concrete |
Contractor Tip From the Field
A trick many road crews use:
Run an asphalt blade when cutting green concrete.
Because green concrete behaves more like asphalt until it fully cures.
BladeGuy Pro Jobsite Rule
Contractors can remember this simple rule:
Hard materials = soft bond blades
Soft abrasive materials = hard bond blades
Final Advice From BladeGuy Pro
If you’re cutting asphalt regularly, buy a blade designed for it.
You’ll get:
• Faster cutting
• Longer blade life
• Less vibration
• Better jobsite results
After 40 years in the diamond tool industry helping thousands of contractors solve blade problems, this is one of the most common questions I hear on jobsites:
Can you cut asphalt with a concrete diamond blade?
