摘要：The paper presents studies of abrasion of concretes made on various rubble: granite, syenite and limestone. The purpose of the research was to assess the wear of each element of the concrete structure and its contribution to the overall wear resistance of concrete. For this purpose, experimental studies were carried out on the wearability of coarse aggregate, cured cement paste, cement-sand mortar and concrete on different aggregates. Studies of abrasion were carried out on concretes hardened in various conditions: normal, air-dry and moisture-proof moisture (under the film). The hardening conditions of the samples play a major role in the change in abrasion and can lead to an increase in abrasion by several times. It is shown that the greatest abrasion is observed in the hardened cement test, as well as in cement-sand mortar. It is established that the wearability of a coarse aggregate from dense rocks increases with an increase in the attrition path (the number of cycles of abrasion). The abrasion of the moisture-proof moisture of the lower part of the samples from the hardened cement stone, mortar or concrete may be lower than the abrasion of the upper, not protected from evaporation of moisture.
