Published online by Cambridge University Press: 15 February 2011
The need for the rehabilitation of the infrastructure has lead to the adaptation of modem analytical methods for the characterization of concrete. These techniques are not commonly associated with evaluating concrete but promise to be very useful both as tools of quality assurance and in the determination of existing damage. This paper describes two such techniques, namely, coordinated electron-optical microscopy and gamma-ray tomography. Examples of the use and interpretation of each method are given.