Thickness & Flaw Detection

 

The Impact Echo (IE) method is used for rapid flaw detection and thickness evaluation of concrete and masonry structural materials. The method is normally applied to plate-like objects such as slabs and walls, but is also used on columns, mat foundations, and beams. The method requires access to only one side for testing, and can measure not only flaw location, but also depth. This method is used extensively for slab thickness profiling without the need to drill, core or excavate.

A variation of the impact echo principle for use on large areas and for high resolution imaging is the Impact Echo Scanning (IES) method. The IES method is based on the Olson Engineering patented technology of a rolling transducer and automated impactor for near-continuous Impact Echo based thickness and flaw scanning of structural concrete and pavements.

Literally thousands of tests can be performed per hour when "imaging" of internal concrete conditions is required. Examples of applications include slab thickness profiling and flaw detection, pavement testing, and for the location of ungrouted sections of post-tensioning ducts in bridge structures. A paper on IES as applied to PT duct void location is available here.

Applicable On:

Floors

Beams

Runways

Tunnels

Dams

Columns

Walls

Pavements

Slabs up to 24 Inches (60 Centimeters) Thick

Test For:

Thickness and Internal Cracks

Voids

Honeycomb

Delaminations

Impact Echo IE, Olson Engineering
Impact Echo IE, Olson Engineering
Impact Echo IE, Olson Engineering
Impact Echo Scanning IES, Olson Engineering

The IE & IES Test Systems

High Data Acquisition

Thousands of tests can be performed per hour when "imaging" of internal concrete conditions is required

Convenience

Only one side of the structure needs to be accessible for testing

Impact Echo IE, Impact Echo Scanning IES, Olson Engineering
Rapid Testing

Rapid flaw detection and thickness evaluation

Testing Specificity

The IE method provides information on the depth of a flaw or defect, in addition to mapping its lateral location and extent

Variety of Materials

This system can be used on concrete, stone, and masonry materials