Experimental Comparison of Cement Dosage in Concrete Mixture Calculations According to TS 802 And ACI 211.1-22 Standards: Effect on Carbon Emissions

The impact of cement use in concrete production on both cost and carbon emissions is becoming increasingly evident. This study examines the cement dosage calculation methods of the TS 802 standard used in Turkey and the ACI 211.1-22 standard, which is widely applied in the United States and internationally, in comparison with experimental data. In the research, a total of 92 data sets, including 61 sets of experimental mixtures consisting of two different cement types, two different aggregate sources and various granulometry combinations, and 31 data compiled from the literature, were evaluated. In addition to the experimental results for each mixture, theoretical cement amounts were calculated based on the TS 802 and ACI 211.1-22 methods, and the deviations occurring in different strength classes were analyzed. In conclusion, the TS 802 and ACI 211.1-22 methods were shown to increase the cement consumption by increasing safety margins in the C35/45, C40/50, and C45/55 classes, which in turn increased both production costs and the carbon footprint. Conversely, for some mixtures in the low and medium strength classes, theoretical dosages were found to be closer to experimental values.