Schmidt concrete test hammer

  Schmidt concrete test hammer

Applications

• Manual hammers for the quick and easy determination of the strength of concrete.

Features and Benefits

• Easy to use manual calculation of the mean rebound number.

• All Test Hammers conform to:
  

Product Details

The HT-225  Manual Test Hammer is the traditional instrument used for the non-destructive testing of hardened concrete. This easy-to-use instrument provides a quick and simple test for obtaining an immediate indication of concrete strength in various parts of a structure. The minimum verifiable strength is 1400 PSI (10 MPa) to approximately 9000 PSI (62 MPa). All concrete test hammers measure the surface hardness of the material they are testing; this is then correlated to concrete compressive strength.

The manual concrete test hammer, aka rebound hammer, schmidt hammer, swiss hammer, sclerometer, is the most widely used non destructive instrument for compressive strength determination. However, it typically has the largest coefficient of variation; therefore its result should be verified with another non destructive test.

Typical Correlation Charts for James Instruments Rebound Hammer

Measuring strength ranges: 10-60 MPa
impact energy: 2.207 Nm
Strike hammer stroke: 75 mm
Spherical radius of strike rod: 25 mm±1 mm
The rebound values calibrated
on steel anvil:80±2
Dimensions: Dia. 54×278 mm
Gross weight approx: 1.6 Kg