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Humboldt Concrete Rebound Hammer
Supported Standards: ASTM C805, BS 1881: Part 202, ISO/DIS 8045, ENV 206, JGJ/T 23-2001
The Humboldt Concrete Rebound Hammer is a reliable and cost-effective alternative to the original Schmidt Hammer, designed for quick and accurate on-site concrete strength testing. Ideal for testing concrete 4" (100mm) or more in thickness with a maximum aggregate particle size of 1.25" (32mm) or less, this tool provides an immediate indication of compressive strength across various parts of a structure — no lab required.
How It Works
Operating the rebound hammer is straightforward. Simply press the hammer firmly against the concrete surface and release. The plunger strikes the concrete and the resulting rebound value is displayed on a mechanical sliding scale. This value can then be cross-referenced with the conversion chart affixed directly to the hammer to estimate the compressive strength of the concrete.
Key Specifications
- Compressive strength range: 1,450 to 9,000 psi (10 to 62 MPa)
- Suitable for concrete 4" (100mm) or more in thickness
- Maximum aggregate particle size: 1.25" (32mm)
What's Included
- Rebound hammer
- Grinding stone for surface preparation
- Conversion chart for compressive strength correlation
- Instruction booklet
- Cloth carrying case
Whether you're conducting quality control checks on new construction or assessing the integrity of existing structures, the Humboldt Concrete Rebound Hammer is an essential tool for engineers, contractors, and inspectors alike.
