Marble powder, a byproduct of marble processing, is increasingly being used as a supplementary cementitious material in concrete production. Composed primarily of calcium carbonate, marble powder can act as a filler and partially replace cement in concrete mixes, contributing to environmental sustainability by reducing cement consumption and the associated carbon emissions. The fine nature of marble powder allows for its effective utilization in improving the microstructure and aesthetic appeal of concrete, making it particularly valuable in architectural applications.