About the article
V.V. BELOV, Dr. Sc., T.R. BARKAYA, Cand. Sc., P.V. KULYAEV, Cand. Sc.
The dependence of mechanical behavior of carbonate concrete on strain rate is considered in the article. It has been established that this dependence is based on two different physical mechanisms: the fracture process, which affects the rate of crack formation, and the viscoelastic deformation of the undamaged (undamaged) cement paste. It is shown that cracking for plain and carbonate concretes should be taken into account when analyzing different aspects of the fracture mechanism and the influence of the deformation rate should be taken into account. It has been revealed that in order to form a complete picture of fracture of these concretes the mechanism of crack formation should be included in the analysis of various aspects of morphology of sample cross-sections and manifestation of crack growth signs.
fine-grained carbonate concretes, deformative properties, crack resistance, influence of limestone microfillers, chemical additives.