Properties of cement with addition of volcanic tuffs and zeolite

摘要

The article consists of the research results of influence of zeolite and volcanic tuff on the processes of hydration of blended cements and their properties. The studied tuffs are characterized by lower pozzolanic activity in comparison with microsilica and metakaoline, however, their addition to cement provides the production of sulfate-resistance, cold-resistance blended cement with higher strength in comparison with Portland cement without additives.