STC "Expert"

Hammers SilverSchmidt for testing concrete

The SilverSchmidt ST/PC is the first integrated concrete test hammer featuring true rebound value and unmatched repeatability.
Two factors contribute to the improved performance of the SilverSchmidt ST/PC over its predecessors:
• Velocity based detection of the rebound quotient
• The lightweight hybrid design of the impact plunger is made from aerospace alloy, matched to the elastic properties of the concrete and equipped with a hardness steel cap

Independent validation testing by BAM (Federal Institute for Materials Research and Testing, Germany) has shown the SilverSchmidt ST/PC to have less dispersion than the classical concrete test hammer over the entire range.  
The unique design and high quality construction of the concrete test hammer SilverSchmidt ST/PC makes rebound hammer testing quicker and more accurate than ever before.

Features

• The SilverSchmidt ST/PC concrete test hammer combines a high measurement accuracy with an unmatched repeatability.
• Impact direction independence: The forward and the rebound velocity of the hammer mass are both measured in close proximity to the point of impact. The rebound value requires no angular correction
• Customer conversion curves for a wide range of compressive concrete strengths, including low fc (<10 N/mm2, 1’450 psi) and high strength concrete (up to 100 N/mm2, 14’500 psi)
• Objective evaluation: a large number of measurement points can be easily collected by the SilverSchmidt ST/PC and automatically evaluated according to statistical data
• A two-layer seal prevents dust and dirt from penetrating the interior of the concrete test hammer.
• Ergonomics: the SilverSchmidt ST/PC body lies very comfortable in the hand
• Automatic conversion to the required measurement unit (MPa, N/mm2, kg/cm2, psi)

Applications

• Ideally suited for on-site tests of concrete
• Suitable for testing a wide variety of concrete, mortar and rock
• Handy for difficult to access or confined test areas (i.e. working overhead)
• Especially convenient for tests on tunnel linings as measurements with the SilverSchmidt ST/PC are independent of impact direction
• Assessment on young, soft concrete with mushroom plunger (e.g. to indicate when to remove forms or for formwork)

Product Variations

• concrete test hammer SilverSchmidt Type ST N - Standard impact energy (2.207 Nm)
• concrete test hammer SilverSchmidt Type ST L - Reduced impact energy (0.735 Nm)
• concrete test hammer SilverSchmidt Type PC N - Standard impact energy (2.207 Nm) with PC communication, increased memory capacity and Hammerlink software
• concrete test hammer SilverSchmidt Type PC L- Reduced impact energy (0.735 Nm) with PC communication, increased memory capacity and Hammerlink software

Warranties

• Standard 2-year limited warranty on electronic parts
• Optional extended warranty periods up to 3 additional years

Applicable Standards

• EN12504-2 (European Standard)
• ASTM C 805 (North American Standard)
• JGJ/T 23-2001 (Chinese Standard)

Technical Data

More Information
www.silverschmidt.com