This publication is aimed at the users of Ground-Penetrating Radar (GPR) in pavement condition surveys. It makes recommendations for the choice of GPR equipment as well as for the collecting, processing and interpreting of data.
This publication describes a standardization protocol for the interpretation of FTIR spectra of dissolved bitumens. The objective is to determine various indicators (e.g. of ageing or the presence of polymers such as SBS or EVA) from absorbance values measured on FTIR spectra, through a semi-quantitative comparison of the intensities or surface areas of peaks within the normalization range.