Ground penetrating radar (GPR) is a geophysical technique of imaging the
subsurface structures at high resolution and it is a non-destructive technique can
consequently be applied in many civil engineering fields and sensitive
environments. The amount of data collected however can be very large and take
a significant level of subjective experience to interpret. This study focuses upon
the ability of using the GPR with 250 MHz and 500 MHz antennas (intermediate
frequencies) to investigate the reinforced concrete to indicate the quantity of
steel bars and their configurations in the concrete constructed in the hidden
mensurations. The recent study shows the ability of using the intermediate
frequency antennas for such fields.