The accumulation of ceramic waste has become a growing environmental concern, primarily because these materials are neither reusable nor recyclable. At the same time, concrete structures frequently experience cracking, which leads to structural deterioration. Cement grout has long been utilized to repair minor cracks; however, the continued use of natural sand as a filler in grout is becoming less viable due to its diminishing availability and rising cost. To address both environmental and material scarcity issues, this study investigates the potential of using ceramic tile waste as a partial replacement for natural sand in cement grout. The research evaluates the performance of cement grout containing ceramic waste through various laboratory tests, including consistency, setting time, shrinkage, water absorption, and both compressive and flexural strength. Ceramic waste particles ranging from 150 µm to 850 µm were tested as partial of sand replacements. Results revealed that the finest particles, around 150 µm, provided the most favorable engineering properties without notably compromising the design strength. Overall, the inclusion of ceramic waste had no adverse effects on grout performance, suggesting it can serve as a sustainable alternative material. Furthermore, this approach offers a practical solution for managing ceramic waste disposal.