An Intrinsic Smart Self-Sensing Paver Block Using Carbon Nano-Black

Urbanisation has a significant impact on road pavements due to various factors such as heavy vehicular loads, high traffic volume, climate change, temperature variation, and further more. These factors contribute to the distress of road surfaces, resulting in the need for frequent maintenance and services. This study focuses on the development of a smart self-sensing paver block with enhanced strength, durability, and the incorporation of self-sensing technology through the infusion of carbon nano-black into the existing paver block. The use of carbon black as a filler material enhances the mechanical properties and strengthens the bond between materials. Its high carbon content and graphitic nature also contribute to improved conductivity and structural health monitoring capabilities. This study utilises strength tests and four-probe method tests to analyse the material’s structural and sensing performance. The study analysis revealed that the incorporation of carbon nano-black in an appropriate ratio resulted in a significant increase in strength, approximately by 21%. The addition of 5% carbon black resulted in improved sensing performance when applied with loading. The analysis of the results indicates that the identified issues can be resolved through the use of a carbon-infused paver block. The proposed solution focuses on enhancing the wear and tear resistance of block against the heavy vehicular and to withstand sudden impact loads. The cost analysis demonstrates the effective fabrication of economically viable carbon-infused paver blocks with enhanced durability and sensing abilities. The cost is nearly comparable to that of conventional paver blocks.