Аңдатпа
The article presents an integrated approach to the design of the concrete composition, which contains a combination of various types of modification of the concrete mixture by introducing a hyperplasticizer based on polycarboxylate ether, as well as reinforcing fibers (anisotropic additive), activation of aggregates, binders and mixing water. It is shown how the reinforcement of concrete cement stone with fibers reduces the formation of shrinkage cracks and increases its frost resistance, and polycarboxylate nanoparticles significantly reduce the amount of water used and the hardening time of the material, making the steam treatment stage optional. The article presents the mechanism of action of the hyperplasticizer, the results of testing of samples-beams and samples-cubes at the age of 28 days. As a result of the action, polycarboxylate particles are adsorbed on the surface of cement grains, mutually repel and drive the cement mortar. With the help of this approach, a condition is created for the formation of a cement stone nanostructure of various functional actions with the help of nanoparticles already at the initial stage of mixing