About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Ruslan A. Ibragimov, Candidate of Technical Sciences, Associate Professor, Kazan State University of Architecture and Engineering, Kazan, Russian Federation E-mail This e-mail address is being protected from spambots. You need JavaScript enabled to view it ; ORCID: 0000-0001-8879-1190 Evgeny V. Korolev, Doctor of Technical Sciences, Professor, Saint Petersburg State University of Architecture and Civil Engineering, Saint Petersburg, Russian Federation E-mail This e-mail address is being protected from spambots. You need JavaScript enabled to view it ; ORCID: 0000-0003-3600-812X |
| Title of the article | Model for determining the amount of activated substance during mechanomagnetic activation |
| Abstract. | Problem statement. One of the promising areas for improving the physical and mechanical properties of composite building materials is mechanomagnetic activation of mineral components in vortex layer devices. However, there are no models for determining the amount of activated substance formed during mechanomagnetic treatment. The purpose of the work is to develop a model for determining the amount of activated substance during mechanomagnetic activation in a vortex layer device. To achieve this goal, the following tasks were solved: – the specific surface area of the initial materials and their change during mechanomagnetic treatment were determined; – the amount of activated substance for different polydisperse materials was determined. Results. The specific surface area of mineral components was analyzed using both the air permeability method and the BET method (proposed by Brunauer, Emmett and Teller). The coherent scattering regions (CSR) of crystallites were determined. A model for determining the amount of activated substance during mechanomagnetic treatment was proposed. The model is based on the assumption that the areas of each pyramid (a defect on the surface of a mineral component particle) correspond to the area of the CSR: the upper area corresponds to the area of the CSR after the activation effect, and the lower area corresponds to the area of the CSR before activation. In this case, all peaks (truncated pyramids) have the same shape and size. According to the calculation results using the proposed method, it is shown that the amount of the activated substance increases with increasing duration of mechanomagnetic activation: for Portland cement up to 10.3%, for gypsum - up to 8.4%, for limestone - up to 4.1%, for quartz powder - up to 33.5%. Conclusions. The significance of the obtained results for the construction industry is that in order to increase the efficiency of mechanomagnetic activation in vortex layer devices, it is advisable to use mineral substances that are paramagnetic. |
| Keywords. | mechanomagnetic activation, model, coherent scattering regions, paramagnets, activated substance |
| For citations: | Ibragimov R.A., Korolev E.V. Model for determining the amount of activated substance during mechanomagnetic activation // News of KSUAE, 2025, № 1(71), p. 67-76, DOI: 10.48612/NewsKSUAE/71.6, EDN: FTIGBH |
