Impact Echo Concrete Test System

System includes one pistol-grip transducer and one dual-head wave speed transducer. This will cover all possible testing needs. For determining the depth of surface-opening cracks, one end of the dual-head transducer can be used in conjunction with the pistol grip transducer. By itself, the dual-head transducer is used for independent measurements of wave speed. The system also includes a laptop computer and the necessary software to operate the system.

The pistol grip transducer is used for routine impact-echo testing. When the transducer is put in place on the test surface it is armed by depressing a trigger or button. The pistol grip transducer is armed with a trigger on the underside of the handle. It is especially well suited to flat surfaces.

The dual-head provides accurate measurements of depth and thickness by measuring the wave speed (speed of sound) in concrete, which can vary from about 3000 to 6000 meters/sec, depending on concrete quality and type of aggregate. The dual-head transducer shown is used only for independent measurements of wave speed (required for determining plate or slab thickness in accordance with ASTM standard C1383-98a). It cannot be used for impact-echo testing. Wave speed can be measured using a single cylindrical or pistol grip transducer only if tests can be performed on a slab of precisely known thickness in the region of the structure where testing will be carried out (not acceptable under ASTM standard C1383-98a).

Other configurations are available, please contact Humboldt for information.