Saidzoda Jamshed Hamro, Akramov Avazjon Abdulloevich, Komilzoda Abduvali Hakim

Annotation:

In practical applications, conditions often encountered are characterized by a limited amount of bound water in cementitious materials. This can inhibit hydration reactions and, consequently, reduce the durability of the resulting material. To study the effect of finely dispersed wollastonite from the Western Dzhangalik deposit (Tajikistan) on the properties of cement stone under moisture deficiency, an assessment was made of the change in the mechanical strength of samples subjected to thermal effects at temperatures of 200 °C and 550 °C. The results obtained showed that the addition of wollastonite to the composition of cement stone contributes to a more stable retention of strength, due to the complex effect of the mineral on the formation of the material structure and mitigation of the effects of destruction caused by heating.

Keywords: wollastonite, mineral additive, cement stone, strength, durability.