EXPLORING MICROSTRUCTURAL CHARACTERISTICS OF ASPHALTIC CONCRETE ENHANCED WITH RECYCLED CERAMIC TILE WASTE

Abstract

This study investigates the microstructural characteristics of asphaltic concrete incorporating recycled ceramic tile waste (CTW). Through a series of analytical techniques, including Atomic Absorption Spectroscopy (AAS), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), and Energy-Dispersive X-Ray Spectroscopy (EDX), the microstructure of CTW modified asphalt specimens was examined. Results from AAS revealed varying concentrations of metallic elements, with aluminum exhibiting the highest concentration in the control specimen, attributed to the alumino-silicate content in granite. FTIR analysis identified characteristic vibrational modes of sample molecules, indicating the presence of specific minerals in the CTW modified asphalt specimens. SEM micrographs depicted changes in structure with increasing CTW content, including the presence of cracks and increased surface area. EDX analysis identified major elements present in the specimens, with notable variations across different CTW compositions. Overall, this study contributes to understanding the microstructural changes induced by CTW incorporation in asphaltic concrete, providing valuable insights for the utilization of sustainable materials in infrastructure development.