The Challenge of Dual-Material Sawing
Reinforced concrete combines soft abrasive concrete matrix with ultra-hard tensile steel rebar.
Contractor Guides
Published: 2026-05-28
How to Properly Cut Reinforced Concrete Without Damaging Rebar or Spindles
Direct Answer: To cut reinforced concrete containing structural steel rebar cleanly without damaging saw spindles or overheating blades, use a laser-welded segmented diamond blade formulated with a medium-soft cobalt bond matrix. When the blade strikes hard steel rebar, reduce forward feed pressure by 30% to allow the diamond grit to cut through the steel at its own pace. Never force or jam the blade through rebar, as sudden torque spikes can strip spindle gears and warp steel cores.
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Frequently Asked Questions
Can a standard diamond blade cut through rebar?
Blades engineered specifically for reinforced concrete can cut rebar. However, pure masonry or asphalt blades will glaze over or lose segments when hitting steel.