Geophysical Mapping: Problem Details Problem Name: Quality / Thickness of concrete Problem Type: Buildings and Structures Assigned Methods: + Borehole imaging, Structure logging Borehole Methods + Ground infrared thermography Thermic Methods + Ground penetrating radar (surface-based) Electromagnetic Methods + Seismic crosshole tomography Seismic Techniques + Self potential Electrical Methods 0 Acoustic logging Borehole Methods 0 DC geoelectrics - Profiling Electrical Methods 0 Geoelectrics - Tomography (surface based) Electrical Methods 0 Nuclear logging Borehole Methods 0 Refraction seismic tomography (surface-based) Seismic Techniques 0 Standard refraction seismics Seismic Techniques US Very-high resolution reflection seismics Seismic Techniques    '+' = Technique applicable; '0' = Application possible/limited use; 'US' = Ultra-Sonic (different equipment)