In the face of escalating environmental concerns and the urgent need for sustainable construction materials, this study explores the innovative use of waste red mud, an abundant byproduct of the aluminum production process, in the production of concrete curbstones. The unique physicochemical properties of red mud, including its fine texture, high alkalinity, and rich composition of iron, aluminum, and other oxides, are leveraged to enhance the traditional concrete mix. This research delves into the optimal incorporation of red mud into concrete curbstones, focusing on the mixture ratios, physical properties, and resultant strength. Optimal results were observed with a 10 % replacement ratio of red mud, which improves flexural strength; however, higher proportions of red mud (exceeding 30 %) led to a decrease in strength, indicating a threshold for its effective use in enhancing concrete properties. In addition, the study reveals that while high red mud content may induce surface porosity due to uneven vibration, it does not cause significant structural flaws like cracks or stratification. This study establishes red mud as a promising sustainable alternative for replacing traditional materials in concrete curbstone production, paving the way for more eco-friendly practices in highway engineering and construction.