Introducing secondary cementitious material (SCM) helps reduce CO2 emissions in the cement and construction industry, during and performance advantages, including low permeability, resistance to chlorides and sulfates, mitigation of alkali-silica reaction, greater strength, and lower temperatures for mass Concrete and improved workability. Industrial waste such as SCM, such as fly ash, slag, silica fume, volcanic ash, and other by-products from the different process mixing with clinker and gypsum, in varying proportions, at the grinding stage of blended cement manufacturing. A new SCM as Limestone Calcined Clay Cement (LC3) is a unique material that is also a cementitious material for the future to reduce dependency on industrial waste as SCM. In this paper usage of LC3 and its impact and benefits are discussed.