ENGINEERS
ONLY
Introduction of HT-225 Concrete Rebound Test
Hammer
Concrete is susceptible to a variety of
environmental degrading factors which tend to limit its service life. This
therefore has brought about the need for test methods to measure the in-place
properties of concrete for quality assurance and for evaluation of existing
conditions. Since such test are expected not to impair the function of the
structure and allow for re-testing at the same location to evaluate the changes
in property at some other point in time, these methods should be
non-destructive. Hence the Concrete Test Hammer.
Features of the HT-225 Concrete
Rebound Test Hammer
2. It works by measuring the rebound of the spring-loaded
hammer, when impacting against the surface of the concrete sample.
3. It is a non-destructive test which can help to estimate
the compressive strength of concrete.
4. It is used to test the compressive strength of building
structures, floors, bridges, dams, highway Roads and rocks.
5. It is an easy-to-use instrument that provides a quick and
on-the-spot test for obtaining an immediate indication of concrete strength in
various parts of structures.
6. It is portable and Handy.
7. It is used in assessing the likely compressive strength
of concrete with help of suitable co-relations between rebound index and
compressive strength.
8. It is used in assessing the uniformity of concrete
9. It is used in assessing the quality of the concrete in
relation to standard requirements
10. It is used in assessing the quality of one element of
concrete in relation to another
11. It is most commonly used due to
its simplicity and low cost.
Note: The Rebound Hammer method can be used with
greater confidence for differentiating between the questionable and acceptable
parts of a structure or for relative comparison between two different
structures.
Specification
1. Test Range: 10-60 mpa
2. Impact Energy: 2.207J (0.225 kgf.m)
3. Impact Stroke: 75 mm
4. Friction of Slider: 0.5-0.8 N
5. Spherical radius of impact pole:
25+/-1 mm
6. Dimension: 278*D54 mm
7. Weight: 1kg