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Production of a sustainable cement through the usage of clay as binding element
- 1 Dangote Cement Cameroon
- 2 National Advanced School of Engineering
- 3 National Advanced School of Engineering
- 4 University of Padova
* Author to whom correspondence should be addressed.
Abstract
The formulation of a calcined clay-based hydraulic binder is an innovative solution for reducing the carbon footprint in the construction industry. This binder is made from calcined clay, a natural and abundant material that does not require high-temperature firing in the 400°C to 950°C range. In our study, we worked respectively under the following temperatures: 550°C, 650°C, 750°C and 850°C, unlike traditional binders whose clinker is fired at a temperature of around 1450°C. The blaine tests showed that the binder had been well ground, resulting in a much finer binder. We then obtained various blaines varying between 5000 and 8000 Cm2/g, unlike the blaine of the traditional binder, which is 3800 Cm2/g; the residue rate is very high compared with that of the traditional binder, due to the grinding carried out in a laboratory ball mill. The results of resistance tests at 30% gave 34.8, 48.8, 36.5 and 46 respectively; those at 40% gave 42.7, 45.4, 44.4 and 44.8, while the resistance of traditional binder gave 42.5. In other words, we obtained strengths comparable to those of the traditional binder. In addition, it was found that the manufacture of calcined clay-based hydraulic binders reduces CO2 emissions compared with traditional binders, which emit very high levels of CO2, making the production of calcined clay-based binders a more environmentally-friendly option for the cement industry. The financial assessment carried out at the end of this study shows that the production of a calcined clay-based binder is more economical than that of a traditional binder (Portland cement).
Keywords
formulation, hydraulic blinder, burnt clay, carbon footprint
[1]. Ostnar,TA, Justnes. H, Durabilité du mortier avec la marne calcilnée comme matériau de cimentation supplémentaire. Adv. Cem. Rés,2014, 26, 344-352.
[2]. Cembureau. Revue statistique mondiale ; Cembureau : Bruxelles, Belgiques, 2010. [Google scholar]
[3]. Saiti Issam, Etude d’un procédé d’élaboration d’un béton léger cellulaire à base de sable de dune de la région de Ghardia, décembre 2014.
[4]. Gaamoussi Hajar, Etude granulométrique des tranches de clinker, Université Sidi Mohammed Ben Abdellah, Faculté des Sciences et Technologiques, 2014.
Cite this article
Emmanuelle,M.M.;Paul,K.;Hugues,F.;Bienvenu,A.W.V. (2024). Production of a sustainable cement through the usage of clay as binding element. Advances in Engineering Innovation,7,9-16.
Data availability
The datasets used and/or analyzed during the current study will be available from the authors upon reasonable request.
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Journal：Advances in Engineering Innovation
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