Once instantiated as the SciSite Method in the 2000's. This is a rapid assessment technique to detect the presence of corrosion on steel, while 'seeing' through the covering (non-magnetic) material. It has worked successfully on tyres and reinforced concrete. If there is a scenario where rapid pre-testing of embedded steel can be inserted into the value chain, please contact me for further details. Search the Internet for SciSite for historical information. (NB I am one of the inventors of this method. It has a UK patent.)
Leave me a message on +44/0 3303 500 553 or by fax (yes, really) on +44/0 3303 500559