Investigation of rheological processes of structure formation of cement systems using waste of expanded perlite sand
Abstract
Investigation of rheological processes of structure formation of cement systems using waste of expanded perlite sand
Incoming article date: 17.10.2024The 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