Radio frequency identification devices (RFID) are increasingly being used in a range of applications. Their use in asphalt could have advantages in terms of the asset inventory and to aid future recycling of material. A trial pavement section was laid using RFID tags added directly into the asphalt mix and delivery trucks. The aim of the trial was to see whether the tags would survive the mixing, laying and compaction process and to establish the dosage rates needed to allow the tags to subsequently be read at traffic speed. The tags were read using a walking speed device and a vehicle mounted system with surveys speeds of up to 30mph.

Want to know more about this project?