Concrete Rebound Schmidt Hammer NOVOTEST SH

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Product Description

Concrete Rebound Schmidt Hammer NOVOTEST SH

Concrete rebound Schmidt hammer (sclerometer) – is a device for concrete and other building materials strength testing. The most common in the world instrument for measuring the strength of concrete is the Schmidt Hammer. The device is called by the name of the engineer Ernst Schmidt, who invented the construction of the sclerometer.

The method is based on the impacting the impact plunger on the concrete surface with predetermined (normed) impacting energy and subsequent measuring of the height of the striker rebounding. The height of the striker rebounding will be proportional to the strength of concrete. The strength of concrete is determined with the calibration charts that are supplied with the instrument.

Concrete Rebound Schmidt Hammer NOVOTEST SH is very ease in operation, has good reliability of design and high measurement accuracy, so that this method is the most common method of measuring the strength of concrete in the world. The strength testing with the Schmidt hammer is correspond with ASTM C 805; ASTM D 5873 (for rock); DIN 1048, p. 2; ENV 206; EN 12 504-2; ISO / DIS 8045.

There are several versions of the device, which are different in impacting energy.

  • The most “powerful” Schmidt hammer is designed to measure the strength of concrete with a thickness of 70-100mm and more, also for the strength testing of massive rocks with impact energy – 2,207J (Nm). This is the base and the most common model of Schmidt hammer, about 90% of the Schmidt hammers in the world have the same impact energy.
  • Average “powerful” Schmidt hammer has the 735J (735 Nm) impacting energy. The impact energy is reduced threefold in compared with the base model. The main application of this instrument is measuring the strength of bricks and concrete products with a wall thickness less than 100 mm and small sizes of sample, also it used for testing the less strength stones and rocks.
  • The least “powerful” Schmidt hammer has 196J (196Nm) impact energy. The main purpose is the strength testing the mortar of brick masonry.

Depending on requerments tasks user always need to select the correct model of Schmidt hammer. All models, independently of impact energy, are devices for non-destructive testing, so that they are not destroying the object of testing.

To verify the accuracy of Schmidt hammer, a special calibrated anvil is used . Correctly functioning instrument have to display certain value testing the standard anvil.

Features Concrete Rebound Schmidt Hammer NOVOTEST SH

Concrete Rebound Schmidt Hammer NOVOTEST SH has 3 modifications with different impacting energy, so that user can test all kinds of concrete and other building materials.

Spesification

Names / model Schmidt Hammer NOVOTEST SH-225 Schmidt Hammer NOVOTEST SH-75 Schmidt Hammer NOVOTEST SH-20
Measurement range of strength, MPa 10 – 60 10 – 60 1 – 25
Impact energy, J 2207 735 196
Minimum thickness of testing object, mm 70 and more 50 – 100 30 and more
Measurement accuracy, % 10
Hardness value of impact plunger working surface, HRC, no less 60
Surface roughness of testing object, Ra um, no worse 40
Radius of impact plunger, mm 25
Operating temperature range, ° C -20 … +50
Weight of the device, kg, no more 1
Gross weight of package, kg 1.7

 

Available Option

  • Special calibrated anvil for verifying the accuracy of the device.
  • There are several modifications of the measuring methods, which are different in impacting energy:

– Concrete Rebound Schmidt Hammer NOVOTEST SH-225

– Concrete Rebound Schmidt Hammer NOVOTEST SH-75

– Concrete Rebound Schmidt Hammer NOVOTEST SH-20

Standard Packages

  • Schmidt hammer (impacting energy as required)
  • Grinder for surface preparation
  • Operating manual
  • Case
Manual Concrete Rebound Schmidt Hammer NOVOTEST SH

Datasheet 

Klik Video ilustrasi pemakaian di bawah ini :

Video pemakaian Concrete Rebound Schmidt Hammer NOVOTEST SH

Video pemakaian Concrete Rebound Schmidt Hammer NOVOTEST SH

 


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