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Rebound Hammer

Non-destructive strength estimation per ASTM C805 / EN 12504-2

Test Level
Non-destructive screening
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STEP 1 / 1
Rebound Hammer (Schmidt Hammer)
Estimate surface hardness and compressive strength non-destructively
⚙ Hammer Setup
days
MPa
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Enter Rebound Readings
Enter 12 rebound numbers (comma-separated) to estimate compressive strength.
📝 Standards
  • ASTM C805: Standard Test Method for Rebound Number of Hardened Concrete
  • EN 12504-2: Non-destructive determination of rebound number
  • Take 12 readings, discard outliers >15% from mean, average remaining
  • Correlation is approximate; calibrate against core tests for specific mixes
  • Do not use on: green concrete (<3 days), carbonated surfaces, or near reinforcement
🤖 SmartLab Stages (مراحل سمارت لاب)

Connect your SmartLab device and follow the guided stages to run this test automatically.

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