• Prashant Ravishankar Lukade
• Manisha Jamgade

: As India is a developing nation, construction activity have expanded over the past few decades. There are large-scale infrastructure projects underway all around the country, including the development of airports, dams, sea link bridges, river bridges, metro, rail, expressways and flyover projects. The need for concrete and fossil fuels surged due to the development and expansion of the building industry, which dramatically boosted CO2 emissions into the atmosphere. The development of concrete technology can lessen the burden of toxins on the environment and the consumption of natural resources and energy sources. Cement and industrial waste exhibit chemical similarities. Utilizing GGBS as a partial replacement for cement will lower the cost of concrete while also assisting in a slower rate of cement consumption. This study reviews the use of GGBS -ground granulated blast furnace slag which is the waste product of the steel manufacturing industry, as an additive to concrete that can replace cement to the extent of more than 50%. By reducing energy consumption (the energy needed to create cement) and preventing the depletion of natural resources, materials like GGBS and others generate concrete that is more "GREEN". In this study, an experiment was conducted to examine the mechanical and durability properties of concrete when a mineral admixture, such as GGBS, was employed to partially substitute ordinary Portland cement in M45 Grade Substructure Concrete. Concrete's compressive strength was compared experimentally after 7, 14, and 28 days of curing. Concrete durability tests such as the RCPT-Rapid Chloride Permeability Test, WPT-Water Permeability Test at 28 days & RCMT-Chloride Migration Test at 56 Days are performed on it. Other tests include cylindrical compressive strength, flexural strength, split tensile strength, and strength after 28 days.

Ground Granulated Blast Furnace Slag; Green Concrete, Compressive Strength, Split Tensile Strength, Flexural Strength, Durability Tests

"Green Concrete Initiative by Replacing Cement With More Than 50% Mineral Admixtures For Substructure Concrete", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 12, page no.g23-g30, December-2022, Available :http://www.jetir.org/papers/JETIR2212605.pdf

"Green Concrete Initiative by Replacing Cement With More Than 50% Mineral Admixtures For Substructure Concrete", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 12, page no. ppg23-g30, December-2022, Available at : http://www.jetir.org/papers/JETIR2212605.pdf