The influence of the aluminosilicate component on the properties of mortars and concretes is considered. Special attention is paid to the addition of perlite dust to the cement binder and the use of the Polyplast SP-1 superplasticizer to regulate rheological properties. It has been experimentally established that an increase in the perlite content increases the water demand and reduces the fluidity of the mixture due to its high specific surface area and porous structure. The rheological properties of various formulations have been studied using a rotary viscometer. The results show that the addition of a superplasticizer reduces viscosity and improves fluidity, which is especially important to prevent deformations and internal stresses in hardening systems.

Keywords: technogenic raw materials, perlite, aluminosilicate component, building mortars, concretes, rheological properties, superplasticizer

The possibility of using expanded perlite dust (RUNWAY) in cement binder systems is being considered. A method for modifying the binder by joint mechanical activation of Portland cement, alumosilicate waste and hyperplasticizer is presented. The physico-chemical features of the modified runway make it possible to regulate the processes of hydration, phase formation, as well as the formation of the structural matrix of the composite. The compressive strength of the binder using RUNWAY as an active mineral additive increases by 36% with a decrease in density.

Keywords: technogenic raw materials, perlite, binder, dispersion, modification, mechanical activation, hydration, structure formation, phase formation, resource conservation

The article shows the possibility of producing a composite using carbon black as a filler. Trivalent chromium oxide was chosen not only as a pigment component, but also as a light stabilizer. The results obtained allow us to say that the dispersed composition is efficient. Compositions based on carbon black and containing trivalent chromium oxide in an amount of 1% exhibit electrically conductive properties.

Keywords: pyrolysis carbon, chemical composition, structural and morphological characteristics, elemental composition, energy dispersive spectrum, micrograph, epoxy binder, polyethylene polyamine, trivalent chromium oxide, thermal conductivity, electrical conductiv