HT-225B Polymer Shell Concrete Rebound Hammer For Testing Concrete Compressive Strength By Rebound Method
HT-225B Concrete Test Hammer
Application:
It is used to test the compressive strength of building concrete components, bridge and so on by rebound method. The shell is made from polymer material, it has strong elastic for protecting the test hammer during the testing on site.
Standard:
ASTM C805/C805M-2008 Standard Test Method for Rebound Number of Hardened Concrete
BS 1881 Testing concrete Part 202 Recommendations for surface hardness testing by rebound hammer
BS EN 12504-2:2001 Testing concrete in structures-Part 2: Non-destructive testing – Determination of rebound number
Parameters:
| Item | Names | Details |
| 1 | Standard impact energy | 2.207J(0.225Kgf.m) |
| 2 | Test range | 10~60Mpa |
| 3 | Stroke of rebound hammer | 75mm |
| 4 | Average rebound value on steel anvil Rm | 80+/-2 |
| 5 | Sphere radius of rebound pole SR | 25mm+/-1mm |
| 6 | Friction of pointer slider | 0.5N~0.8N |
| 7 | Size | φ54*278mm |
| 8 | Weight | About 1kg |
Features:
1. Pointer slider is outside structure, its friction can be balance well and easy to be adjusted so that we can make sure that the instrument is accurate.
2. The shell is made from high polymer material in order to perfect protect instrument from damage and extend use life.
3. Center rod is made from imported material, high accuracy and durable resistance.
