CONCRETE MECHANICAL HARDNESS HAMMER METER TESTER

Hardness Meter for Concrete
Handheld mechanical hardness meter for testing concrete
This type test hammer is used to test the concrete compressive strength of construction and bridge...

The hardness meter for concrete is easy to use and it is used in the construction industry as well as in other industrial sectors (testing for Wickel hardness of rolls in commodities).

This hardness meter in the form of a hammer device for testing concrete is based on the Schmidt principal of measurement. Testing is always done under the same test energy of 2207 J. The kinetic energy of the rebound is given by the device as the measurement of the hardness of concrete, of the pressure upon the surface or as the resistance to pressure (kg/cm² or its conversion to N/mm²).

The quality of concrete is useful in understanding the material resistance to pressure, as an orientating value for testing the load capacity and durability of concrete constructions. Resitance to pressure is represented as a series of numbers and letters, for example: B 25 indicates that the material is normal concrete with a resistance to a pressure equal to 25 N/mm². Different readings exist up to the highest class of resistance which is indicated as B 55. With our hardness meter you will be able to easily and accurately classify concrete.

. - Solid design.
- Special rebound body to make numerous tests
of concrete
- Very easy to use
- Conversion table on the back
- Measurement adjustments listed in the users
manual

General information about concrete resistance to pressure

Resistance to pressure is generally defined as the measurement of resistance to breaking under a particular pressure load at an axis during a brief point in time. The resistance to pressure of concrete is determined, taking into account the following parameters:

- Resistance of a cement block
- Composition and compactness of concrete
- Time and conditions of storage
- Dimensions and form of element being tested
- Type and duration of load

Resistance to pressure is normally determined in laboratories using cubes or cylinders of concrete. Once the concrete sample is chosen, it is recommended to immediately prepare flat and smooth upper surface. Cylinders are very durable. In places where its not possible to take measurements with methods used in laboratories, a hardness meter, with an easy to use hammer, is applied.

The image to the right shows the hardness meter measuring a plinth of an old wall in an old factory building. The plinth is not inlcuded and for this reason, the measurement is made on the painted concrete surface. The degree of hardness is obtained accurately after the measurement is done using the rebound body (rebound value = R) upon the surface of the concrete and with the help of a conversion table on the back or in the user manual.

Technical specifications
Range of measurement 100 to 600 kg/cm² (~9.81 to 58.9 N/mm²)
Accuracy ±18 kg/cm² (~±1.8 N/mm²)
Energy 2207 J
Indication of measurement 0 to 100 (without dimensions)
Scale for the resistance to pressure at the back to convert values indicated without dimensions to kg/cm² (with introduction of angle)
Correction table for measurements in the user manual
Maximum thickness of concrete (of the material) 70 cm
Dimensions diameter 66 x 280 mm
Weight 1 kg

Delivery content:
1 x PCE-HT-225A hardness meter (Schmidt method)
1 x calibration plate
1 x carrying case
1 x user manual

******************************
How to Buy: 2 Options:
1> Drop by Zollner Bearing Unit 84, 4th Avenue, Kalookan City
2> Add Ship cost We ship via Courier same day pay same day shipout usually next day arrive after you made your deposit via BPI or BDO or Gcash.

> Call 782-0957 * 0917 513-5566 * 0917 513-5566 JEFF