STUDY OF THE THERMAL STABILITY OF CONCRETE PRODUCED ON THE BASIS OF CEMENT WITH THE USE OF THE CEMENT CLINKER GRINDING INTENSIFIER

Abstract

In this article, the thermal stability and structure of concrete obtained on the basis of cement using cement clinker grinding aids MI-1 and MI-2, studied by differential thermogravimetric and IR spectroscopic methods of analysis, were studied. Based on the thermal analysis of concrete samples, it was found that crystalline hydrates decompose in the temperature range of 600-800 ° C and the IR spectrum fluctuations in the region of 3630 cm-1 show OH groups associated with crystalline hydrates in the structure, as a result, concrete loses its strength.
In order to increase the strength of concrete while reducing the consumption of Portland cement, the developed cement clinker grinding intensifiers MI-1 and MI-2 were used. The structure of concrete was studied by IR spectroscopy. The results showed that the addition of cement clinker grinding aids improves the physical and mechanical properties of concrete.