LABORATORY EVALUATION OF THE MECHANICAL PERFORMANCE OF HOT MIX ASPHALT MODIFIED WITH CERAMIC WASTE POWDER AS FILLER

Waste materials are increasingly being employed as alternative raw materials in road pavement construction by the asphalt pavement sector, which is helping to decrease both environmental concerns and building costs at the same time. Specifically, the goal of this research is to determine if ceramic waste powder (CWP) can be utilized as a filler in hot mix asphalt (HMA) at various percentages in place of traditional limestone filler. It was decided to employ Marshall, resilient modulus, and dynamic creep tests on asphalt mix prepared with various CWP ratios (0, 3, 6, and 9%) by aggregate dry weight in evaluating the strength, properties, and performance of the asphalt mixes. The results revealed that using CWP improved Marshall stability, resilient modulus, and dynamic creep performance in the modified hot mixes asphalt. Furthermore, the 6% CWP mixture had the maximum creep stiffness, with a 156% improvement in resisting permanent deformation as compared to the conventional HMA with limestone filler. As a result of this research, CWP can be regarded as an acceptable alternative to conventional fillers in HMA, allowing for the removal of huge quantities of waste ceramic lime from landfills, resulting in significant environmental advantages.