Obsnap Instruments Sdn Bhd
29A, Jalan SS 15/4C,
47500 Subang Jaya,
Selangor, Malaysia.
+603-5621 5786
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TQC sheen - CONCRETE INSPECTION HAMMER (MECHANICAL) Paint Strength Testers Coating / Paint Testing

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The concrete test hammer or sclerometer from TQCSHEEN is used for the non-destructive compression strength measurement of concrete. In such a way, concrete is tested for its load-bearing capacity and strength.

The measuring principle is such that the concrete test hammer hits the concrete. Depending on the concrete hardness, the body rebounds, more or less. The rebound is measured by the device and can be converted to a compressive strength.

Since a conventional measurement cannot be carried out in the laboratory when the concrete is built-in, a concrete test hammer is used on site. The measurement is carried out directly on the surface of the concrete and is determined with the help of a conversion table for compressive strength classes. The compressive strength is determined by means of a one-axis, short pressure load without damaging the concrete. The compressive strength of concrete depends on various influence factors such as granules size, water-cement value, fresh concrete density, air content in concrete, resistance to chemical attacks etc.

The strength classes for standard and heavy aggregate concrete refer to the test specimens, which have been stored up to the test age of 28 days either under water or at a relative humidity of 95%. With the sclerometer LD0500, the measured parameters are converted directly in the device and then output and, in addition, the data can also be transmitted from the device to a PC.

The LD0500 is a heavy-duty concrete hardness tester or concrete test hammer, also called a concrete rebound hammer or Swiss hammer, used to measure surface hardness and material compression strength. Suitable for use with concrete, rock and building materials, this rugged, manufacturer-calibrated rebound hammer is both easy to use and built to last.


  • Model: Mechanical concrete test hammer type N
  • Test range: 10 … 60 MPa or 100 … 600 kg/cm² (1450 … 8702 psi)
  • Impact energy: 2.207 J or N-m / 1.6278 ft-lb
  • Impact stroke: 75 ± 0.3 mm / 2.95 ± 0.012 in
  • Radius of spherical tip: 25 ± 1 mm / 0.99 ± 0.04 in
  • kg/cm², psi, and MPa conversion tables
  • Optional test anvil to verify accuracy listed under accessories
  • According to UNI EN 12504-2 and ASTM C805
  • Limitations: Sp. => 100mm
  • Reference standards: UNI EN 12504-2, ASTM C805, BS 1881
  • Weight: 1,8 Kg
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