El-Shafie, Y.M. (2023). “Sustainable implementation of natural stone waste as cement replacement towards optimized concrete”, In: “Environmental Science, Technology, Engineering, and Mathematics (STEM)”, Wang, L.K., Wang, M.H.S., and Pankivskyi, Y.I. (Series Editors). 129 pages. May 2023. Lenox Institute Press, Auburndale, Massachusetts, USA. https://doi.org/10.17613/5vdn-4f05 ….. ABSTRACT: The main prospective is the natural characteristics of the stones. Thus, the optimal exploitation corresponds to their potentials and use possibilities. Ornamental stones include marble, granite and other refined stone types. The use of natural stones encompasses the extraction, transportation, manufacturing (sawing, polishing and cutting operations), shredding, installation and disposal process, which is a burden on the environment and causes health issues, in addition to economic issues. The process of recycling waste from the global industries is very profitable. However, waste is still not exploited in the best way on the industrial and investment level. Thus, the generated stone waste could be implemented in concrete composites in different additive percentage in order to rationalize the use of natural resources. The approach is to capacitate the concrete to absorb other industries waste and by-products. Therefore, the use of stone waste powder has a synergic effect positively on the environment, flora and fauna in addition to reducing the carbon footprint of cement, as a result of less energy consumption.