Abstract
Statement of the problem. The article considers the task of developing a modern theory for creating technologies for processing large-tonnage dispersed materials and technogenic products using non-firing technologies in the industry and road construction as structural layers of roads. Results. We applied the Deryagin-Landau equation, supplemented by introducing the potential of induction and dispersion intermolecular interaction in diffuse layers of composite particles to predict the strength characteristics of building materials. We propose the diagnostics of raw materials, taking into account the energy of dehydration, which makes it possible to predict their binding properties and the ability to contact-condensation hardening. We obtained a regression dependence of the change in the strength of the resulting material on technological parameters and showed that the main contribution to the strength characteristics is made by pressing pressure, temperature and mixing time. Conclusions. We proved the effectiveness of using a mathematical model for optimizing the process of obtaining lime-sand phosphogypsum material. We showed the prospects for the application of the proposed provisions of the theory of aggregative stability of dispersed mineral materials in the creation of new materials with desired properties that meet the requirements of modern construction of buildings, structures and pavement bases.
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