THE THE INFLUENCE OF ACTIVE MINERAL ADDITIVES ON THE PROPERTIES OF CALCIUM SILICATE

The influence of mineral additives on the kinetics of hardening of Portland cement

Abstract

The article presents the results of the conducted research on the strength gain of cement with the addition of mineral additives. The components were selected and their effect on the hydration of Portand cement was studied. Known methods and approaches were analyzed to accelerate hardening. Based on the analysis of previously conducted studies by other authors, the following components were considered: ferrous, quartz, carbonate. During the experiments, X-ray and thermographic analyses showed the degree of hydration at the age of 3.7 and 28 days. The test results showed the possibility of accelerating hardening with an increase in the carbonate component by 20%, and after 7 days showed a compressive strength limit of 30 MPa, a positive effect.