The Effect of Basalt Powder on the Properties of Cement Composites

The paper deals with the effect of basalt powder on the rheological properties of fresh cement mortars and physical properties of hardened mortars. The cement mortar was modified by basalt powder in amount 10, 20 and 30% by weight of cement (replacement of cement). The consistence of fresh mortars should have the quality of self-compacting material. The impact of basalt powder on the initial consistency and on the loss of workability was studied. The effect of basalt powder on the shrinkage and compressive strength was also investigated. The results obtained show that the basaltic powder has a positive effect on the consistency of fresh cement composites and the strength of the hardened composite.