Effect of Selected Mineral Admixtures on Mechanical Properties of Concrete

摘要

The effect of mineral admixtures on compressive and tensile strength of concrete was studied in the article. The concrete mixtures were modified by quart, quartz-feldspar and basalt powder in amount 10, 20 and 30 % by weight of cement. The mix with no mineral admixture was prepared as a control sample. The results obtained show that selected mineral admixtures lower concrete strength but the degree of strength reduction depends on the used mineral admixture and its concentration.