Abstract—
This paper presents experimental data illustrating the effect of viscosity modifiers on the structure formation in cement systems and their rheological characteristics and strength. It is shown that SiO2- and Al2O3 · SiO2-based nano- and microparticles, similar in crystal-chemical structure to newly formed hydrate phases, are the most effective viscosity modifiers, capable of reducing the setting and hardening times by a factor of 1.3–1.5 and raising the plastic strength of the cement systems by four to five times and their compressive strength by 30%. Xanthan gum and potassium pyrophosphate are effective modifiers for controlling the rheological characteristics of the cement systems, but they are incapable of activating structure formation and hardening processes.
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ACKNOWLEDGMENTS
The experimental data in this work were obtained using equipment at the Y.M. Borisov Shared Research Facilities Center, Voronezh State Technical University.
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Slavcheva, G.S., Artamonova, O.V., Shvedova, M.A. et al. Effect of Viscosity Modifiers on Structure Formation in Cement Systems for Construction 3D Printing. Inorg Mater 57, 94–100 (2021). https://doi.org/10.1134/S0020168521010143
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DOI: https://doi.org/10.1134/S0020168521010143