ae76089192b7789781-463c20241023113913086 beie:beie director@blueeyesintelligence.orgWEB-FORM International Journal of Innovative Technology and Exploring Engineering IJITEE 22783075 10.35940/ijitee https://www.ijitee.org/ 10 30 2024 13 11 Assistant Professor, Department of Civil Engineering, Navkis College of Engineering, Hassan (Karnataka), India. Ms. Bandhavya G B https://orcid.org/0000-0001-9920-5302 Ms. Lavanya H D Assistant Professor, Department of Civil Engineering, Malnad College of Engineering, Hassan (Karnataka), India. Mr. Mohana H S Assistant Professor, Department of Civil Engineering, Navkis College of Engineering, Hassan (Karnataka), India. Mr. Theju R K Assistant Professor, Department of Civil Engineering, Navkis College of Engineering, Hassan (Karnataka), India. Ms. Shilpa J Assistant Professor, Department of Physics, Navkis College of Engineering, Hassan (Karnataka), India. Ms. Madhushree C Assistant Professor, Department of Civil Engineering, Malnad College of Engineering Hassan (Karnataka), India. This study aims to explore the feasibility of incorporating Granulated Blast Furnace Slag (GBFS) as a sustainable alternative to manufactured sand (M-Sand) in cement mortar, to enhance both environmental sustainability and mechanical performance. The research involves a systematic investigation where M-Sand is progressively replaced by GBFS at varying levels of 10%, 20%, 30%, 40%, and 50%. The effects of these replacements are evaluated through a series of tests that focus on the mortar's physical properties, as well as its compressive and tensile strengths. Experimental results reveal that replacing 30% of M-Sand with GBFS produces the most favorable outcomes, with the compressive strength of the mortar exceeding that of the control mix by 12% after 28 days. The tensile strength also showed marked improvements at this replacement level. However, when the replacement level exceeds 30%, both compressive and tensile strengths begin to diminish, indicating that excessive substitution may adversely affect the mortar's structural integrity. The findings of this study provide valuable insights into the optimal use of GBFS in cement mortar, demonstrating that a 30% substitution not only enhances strength characteristics but also contributes to more sustainable construction practices by reducing reliance on natural sand resources. This research supports the potential of GBFS as a viable material for improving the environmental profile and durability of cement-based materials. 10 30 2024 1 6 CC-BY-NC-ND 4.0 10.35940/BEIESP.CrossMarkPolicy www.ijitee.org true International Journal of Innovative Technology and Exploring Engineering (IJITEE) Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP) Based on my understanding, this article has no conflicts of interest. This article has not been sponsored or funded by any organization or agency. The independence of this research is a crucial factor in affirming its impartiality, as it has been conducted without any external sway. The data provided in this article is exempt from the requirement for ethical approval or participant consent. The adequate resources of this article are publicly accessible. The authorship of this article is contributed equally to all participating individuals. 10.35940/ijitee.K9971.13111024 https://www.ijitee.org/portfolio-item/K997113111024/