Speaker
Description
Abstract. The cement industry is one of the most environmentally damaging sectors in terms of energy, raw material consumption, and CO2 emissions. A considerable amount of the energy used in cement production is consumed during the clinker grinding stage. For this rea-son, grinding aids (GAs) are used to ensure energy efficiency during clinker grinding. Amine-based additives are among the most preferred types of GAs in practice. This study aimed to assess both the individual and combined effects of two different amine-based additives on grind-ing efficiency, CO2 emissions, and overall environmental impact. For this purpose, 100% triethanolamine (TEA), 100% triisopropanolamine (TIPA), and a mixture of 50% TEA and 50% TIPA were utilized as GA at two different utilization rates (0.05% and 0.1% of the combined weight of clinker and gypsum). Thus, six cements were produced in ad-dition to the control cement containing no GA. The cements produced with and without GAs were analyzed for grinding efficiency, CO2 emis-sion, and environmental impact based on the target Blaine fineness (4200±100 cm2/g). The study revealed that varying the utilization rate did not significantly affect the grinding performance of different types of GAs. Regarding grinding efficiency, the GAs were ranked in the fol-lowing order: 100% TEA > 50% TEA and 50% TIPA > 100% TIPA.
