Optimization of the compositions of filling materials containing waste from the development of salt deposits
https://doi.org/10.29235/1561-8331-2019-55-4-490-497
Abstract
By the method of mathematical planning of the experiment, the influence of the liquid-solid ratio and the content of waste of salt deposits in magnesia hardening backfill mixtures on their technological properties have been studied. The plan of the experiment has been chosen, the regression equations describing the influence of anhydrite wastes and halite wastes content on the density, spreadability and early setting time of backfillingsolutions, volumetric mass, and 28-day uniaxial compression strength of hardened materials have been obtained. As a result of the statistical analysis of mathematical models, the significance of their coefficients, adequacy, efficiency and the ability to calculate technological characteristics of backfilling mixtures by type and content of man-made raw materials have been estimated.
Keywords
magnesia binders,
waste from the development of salt deposits,
factorial experiment,
the factors and parameters optimization of the regression equation,
the test of their adequacy,
the significance of the coefficients,
the criteria of Student and Fisher,
the coefficient of determination,
the average error of approximation
About the Authors
N. Ch. Belous
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Natalia Ch. Belous – Ph. D. (Chemistry), Senior Researcher.
9/1, Surganov Str., 220072, Minsk
S. P. Rodtsevich
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Sofia P. Rodtsevich – Researcher.
9/1, Surganov Str., 220072, Minsk
O. N. Opanasenko
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Olga N. Opanasenko – D. Sc. (Chemistry), Head of the Laboratory.
9/1, Surganov Str., 220072, Minsk
N. P. Krutko
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Nikolay P. Krutko – Academician, D. Sc. (Chemistry), Professor, Head of the Department.
9/1, Surganov Str., 220072, Minsk
V. V. Shevchuk
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Viacheslav V. Shevchuk – Corresponding Member of the National Academy of Sciences of Belarus, D. Sc. (Chemistry), Head of the Department.
9/1, Surganov Str., 220072, Minsk
D. E. Dudarev
Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus
Belarus
Belarus
Dmitry E. Dudarev – Junior Researcher.
9/1, Surganov Str., 220072, Minsk
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