Dowel position measuring device

The MIT SCAN2-BT is a device for the non-destructive determination of dowel and tie bar positions in concrete. Working with pulse induction technology, the device makes use of the magnetic properties of the dowel bar by recording its returned magnetic field via sensors. The measurement process is very straightforward. A mobile rail system is placed above the joint to be assessed. The measuring trolley is then pulled over the rails along the joint. It is controlled via a Pocket PC that communicates wirelessly with the measuring device. During the measurement run, the Pocket PC displays the signal received and the distance covered.
Measurement and evaluation of dowel bar positions in a joint will together take less than a minute. Dowel embedment depths and misalignments such as tilt and shift can be determined precisely.

If dowel bars are implemented in baskets, the measuring method provides useful information about the presence as well as significant translations and/or distortions of the baskets.

The device is applied in concrete road construction (highways), runway construction at airports, container areas at harbors and other reinforced concrete surfaces (e.g. motorway service areas, bus stops, roundabouts, etc.).

Application: Concrete diagnosis

Property: Rebar locators