Marble sludge, derived from the processing and cutting of marble, is a fine particulate residue with potential applications in the construction industry. Comprised mainly of fine marble dust, water, and small marble particles, marble sludge can be used as a supplementary cementitious material to enhance the properties of concrete. Utilizing marble sludge in concrete mixtures not only promotes sustainability by recycling waste but also improves the workability and surface finish of concrete, making it a valuable resource for both general construction and high-value architectural applications.