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ECONOMIC EFFICIENCY OF USING THE WASTE OF INDUSTRIAL ENTERPRISES IN CONSTRUCTION - ПАЁМИ ДПДТТХ ECONOMIC EFFICIENCY OF USING THE WASTE OF INDUSTRIAL ENTERPRISES IN CONSTRUCTION - ПАЁМИ ДПДТТХ

ECONOMIC EFFICIENCY OF USING THE WASTE OF INDUSTRIAL ENTERPRISES IN CONSTRUCTION

October 26, 2023 Ilhomjon Qodirov

Authors

Aminov F.A. – Candidate of Technical Sciences, Senior Lecturer, Department of Construction, Polytechnic Institute of the Tajik Technical University

Annotation

This article provides a feasibility study of using calcined clay for cement production. The possibilities of using aluminum production wastes as part of building cement are considered. The 15% additional of calcined clay to the composition of cement makes it possible to improve its physical, mechanical and chemical qualities. Particularly, cement-based products have a disadvantage, they are hygroscopic and can be destroyed as a result of freezing and thawing. The additive in the form of calcined clay in a certain proportion allows to eliminate this disadvantage and significantly improve the quality of cement. An economic assessment of the effect of introducing this technology into production was carried out. Considering that the Republic of Tajikistan is a leader in cement production output in the region and there is a prospect for an increase in aluminum production, the state can get tangible economic and environmental benefits.

Key words

cement, mortar, calcined clay, waste, industry, bauxite, chemical, physical, mechanical properties, laboratory tests, sample, hygroscopic properties, aluminum, ecology, economic effect

References

Ludwing H. Zemente furnachhaltige Betone // Ibasusil/ – Weimar, Deutschland, 2015, Band 2. – P. 7 – 32.
Schulze S.Ye., Rikert Y., The property of cements with calcined clays as the main component, Cement and its Application, 2016, № 1. – P. 152 – 156.
Skibsted Y., Dai Z., Rasmussen K.E., Garg N. Thermal activation and pozzolanic activity of calcined clays for use in portland cement with additives // Cement and its application, 2016, № 1. – P. 144 – 151.
Industry of the Republic of Tajikistan. Statistics Agency under the President of the Republic of Tajikistan. Dushanbe, 2018.
http://hardstones.ru/aktualnye-ceny-za-1-kubicheskij-metr-betonnoj-smesi.html. (appeal date: 07/10/2018).

Publication date

2023-10-26