Determining the optimum clinker amount of economical-green cement for different strength classes with life cycle analysis

Life Cycle Analysis (LCA); It is a method used to evaluate and determine the environmental impact of a product, its production process, starting from the supply of raw materials, and its service activity throughout its life. LDA begins with making an inventory of the raw materials used in the production process of a product or service and the resulting environmental emissions, and ends with evaluating the environmental impacts that these inputs and outputs may create and systematically comparing the results. The construction sector uses approximately 50% of the raw materials extracted from the earth. The construction sector is one of the main causes of environmental problems, accounting for 36% of global energy use and 39% of carbon dioxide emissions resulting from energy use. In order to minimize and even prevent the resulting environmental impacts, the environmental impacts created by the product-service should be revealed concretely. For this purpose, in this thesis study, in order to minimize environmental pollution caused by cement production, the amount of clinker is reduced by 5-50% and cements with mineral additives are used. produced and samples were prepared. The mineral additives in question are; fly ash, granulated blast furnace slag and natural boza. Samples produced with different amounts of mineral additives were compared with the reference sample without additives, and the most appropriate cement mixture ratio was determined by drawing a strength-environment-cost graph. The most efficient sample in terms of strength, environment and economy was selected as DP10 (10% natural posing replacement sample) and was named economical-green cement. Two different scenarios built with this economic-green cement and Portland cement were created and it was calculated that economic-green cement reduced carbon emissions by 40118.75 kgCO2e. Thus, a cement recommendation is given for environmentally friendly, durable and economical structures.