STC "Expert"

  • Increase font size
  • Default font size
  • Decrease font size
nondestructive testing
Print

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

Mechanical data

Type ST N / PC N

Type ST L / PC L

Impact energy

2.207 Nm

0.735 Nm

Hammer mass

135 g

135 g

Spring constant

0.79 N/mm

0.26 N/mm

Spring extension

75 mm (2.95”)

75 mm (2.95”)

Housing dimensions

55 x 55 x 255 mm (2.16” x 2.16” x 9.84”)

 
Weight

570 g (1.3 lb)

 
PC application
Only for the concrete test hammer SilverSchmidt versions PC N and PC L: Hammerlink Software
Electrical data
Display 17 x 71 pixels; graphic / alphanumeric 
Power consumption

~13 mA measuring, ~4 mA setup and review, ~0.02 mA idle

 
Battery life >5000 impacts (before recharging) 
Charger connection USB type B (5V, 100 mA) 
Measuring ranges
Concrete compressive strength 10-100 N/mm2 (1450-14500 psi) 
Operating temperature 0 to 50 °C (32 to 122 °F) 
Storage temperature -10 to 70 °C (14 to 158 °F) 

More Information
www.silverschmidt.com

 

Search

Partners

Banner
Banner
Banner
Banner
Banner
Banner
Banner

 
Услуги лаборатории неразрушающего контроля
Аттестация лабораторий НК
Поверка и калибровка
Яндекс.Метрика