THE MAIN STAGES OF PORTLAND CEMENT PRODUCTION PROCESS
Abstract
The Portland cement production process significantly impacts the environment, particularly with the mining of raw materials and the high CO2 emissions. From this perspective, the study aimed to analyze the technical possibilities of utilizing granite rock waste and clay cement waste, produced during the production of aggregates for civil construction, in Portland cement production. Research into the use of limestone residue as a partial substitute for clay in the production of Portland clinker was found to be lacking. Furthermore, there was a noted gap in studies analyzing the potential of this residue as a mineralizer. To address this, the raw materials were characterized physically, chemically, and mineralogically, and based on these results, two types of cement production were proposed. First, cement was produced with about 95% limestone and 5% clay, using clinkerization at a temperature of 1450 °C. Later, a second type of cement was produced with 25%, 50%, 75%, and 100% clay replaced by the residue, also using clinkerization at 1450 °C.
References
1. Tiago Assunçao Santos. Obtenção de clínquer portland a partir da utilização do fino de rocha granítica (frg) e do resíduo de telhas de cimento-amianto (rca) como matérias-primas alternativas. Salvador-2021. 30-35p.
2. Barqaror rivojlanish bo'yicha Butunjahon biznes kengashi (WBCSD) ma’lumotlari (2016).
3. Adaxamjonovich, O. Z. A. (2024). ANALYSIS OF THE MAIN TECHNOLOGICAL STAGES IN THE PREPARATION OF CEMENT. Ethiopian International Journal of Multidisciplinary Research, 11(04), 320-324.
4. Orazimbetova, G. J., Adilov, J. K., Nurimbetov, B. C., & Irkahodjaeva, A. P. (2001). Mergel of Karakalpakstan-raw material for producing of portlandcement. UZBEKSKII KHIMICHESKII ZHURNAL, (3), 17-19.
5. Adaxamjonovich, O. Z. A., & Jaksilikovna, O. G. (2024). THE IMPORTANCE OF CALCIUM OXIDE IN THE PRODUCTION OF PORTLAND CEMENT CLINKER AND THE STEPS OF THE PRODUCTION PROCESSES. Ethiopian International Journal of Multidisciplinary Research, 11(03), 292-295.
