Multichannel Spectral Induced Polarization (Sip) – Application to Geotechnics and Construction Materials

A003 MULTICHANNEL SPECTRAL INDUCED POLARIZATION (SIP) - APPLICATION TO GEOTECHNICS AND CONSTRUCTION MATERIALS Introduction 1 Geoelectrical methods are applied in many fields of civil engineering. They are used for building ground inspection hydrogeological investigations or moisture determination in building materials. Both instrumentation and interpretation software are commercially available and relatively simple to use. But the measured parameter (electrical resistivity) is often ambiguous. For example there is no unique correlation between resistivity and moisture. Many other parameters in particular salt content have great influence on the measurements. So other methods (geophysical or not) have to be used to calibrate the results.