STUDYING THE INFLUENCE OF VOLCANIC ASH OF THE JEYRANCHEL FIELD ON THE PROPERTIES OF DRY CONSTRUCTION MIXTURES BASED ON CEMENT

Abstract

The study examined the influence of volcanic ash from the Jeyranchol deposit on the properties of dry building mixtures. It has been established that when volcanic ash is used instead of quartz sand, as its quantity increases, the holding time of solutions increases, their plasticity increases, and certain drops in the density of the solution are observed. A noticeable decrease in the density of the solution is explained mainly by the dispersed composition of volcanic ash and, as a consequence, by the high normal density.It has been established that adding volcanic ash to a cement-based mortar instead of quartz sand up to 15% increases the adhesion of the mortar to various surfaces (ceramics, concrete, sawdust) and sorption moisture after hardening. The studied compositions have high hygienic and consumer properties as dry building mixtures of a new generation. This allows them to be used in areas such as basements, attics, and bathrooms, which are characterized by special damp conditions.