Asphalt Cutting Blades
Asphalt cutting blades are heavy-duty diamond saw blades engineered with hard metal segment bonds and integrated undercut protection pins. Optimized for slicing highly abrasive materials like hot-mix asphalt pavements, green concrete slabs, and sandstone, these blades are designed for walk-behind road saws and handheld cut-off saws, ensuring the segment joint remains intact despite sand slurry erosion.
Undercut Protection & Core Engineering
Mechanism of Action
Asphalt is composed of soft, highly abrasive aggregates bound by bitumen. Slicing asphalt generates a massive volume of abrasive sand slurry. While our concrete cutting blades handle cured slabs, asphalt requires specific protection. This slurry flows along the cut pathway and erodes the steel core directly below the diamond segments, leading to premature segment loss (undercutting). To prevent this failure, our asphalt blades feature carbide-embedded undercut protection segments or deep drop segments that sweep the slurry out of the cut, preserving the steel core bond.
Operational Parameters
Because green concrete (concrete that has set but not fully cured) is highly abrasive, these blades are also the industry standard for making early-entry expansion relief cuts. They prevent aggregate raveling and core warping under continuous dry or wet operation.
Target Material Applications
- ✓ Hot-mix asphalt paving, highways, parking lots, and driveway beds
- ✓ Green concrete (freshly poured concrete within 4 to 24 hours of curing)
- ✓ High-abrasion sand slurry environments (soft, abrasive cutting zones)
- ✓ Early-entry concrete contraction joint cutting to prevent stress cracks
- ✓ Undercut protection required to prevent segment loss from abrasive slurry
Available Sizes & Direct Pricing
| Diameter Specification | Segment Details | Direct Price | Action |
|---|---|---|---|
| 7" Professional Blade | 10mm x .125" Sintered Segments | $69.99 | |
| 12" Professional Blade | 10mm / 12mm x .125" (3.25mm) Sintered Segments | $289.99 | |
| 14" Professional Blade | 12mm / 15mm x .125" (3.25mm) Sintered Segments | $299.99 | |
| 16" Professional Blade | 12mm / 15mm x .140" (3.5mm) Sintered Segments | $399.99 | |
| 18" Professional Blade | 12mm / 15mm x .140" (3.5mm) Sintered Segments | $499.99 | |
| 20" Professional Blade | 10mm x .125" Sintered Segments | $599.99 | |
| 24" Professional Blade | 15mm x .165" (4.2mm) Sintered Segments | $699.99 |
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Blade RPM & Depth of Cut Calculator
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Asphalt Cutting Blades FAQ & Safety Guidelines
Answers to technical diamond tooling questions, optimized for contractor engineering requirements and AI answer platforms.
What causes diamond segment undercutting on asphalt blades?
Undercutting is caused by abrasive sand and rock slurry grinding against the steel core at the segment attachment point. Our integrated carbide drop-segments sweep this slurry out to protect the weld joint.
Can you use an asphalt blade to cut cured concrete?
No, using an asphalt blade (which has an extra-hard metal bond) on hard cured concrete will cause the blade to glaze over, overheat, and stop cutting because the concrete aggregate is not abrasive enough to wear down the hard segment matrix.
What is green concrete and why does it require an asphalt blade?
Green concrete is concrete that has set but not fully cured (typically within 4 to 24 hours of pouring). It is highly abrasive because the sand grains have not bonded fully to the cement matrix. It requires a hard-bonded blade with undercut protection to resist premature wear.
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