Keyword: «concrete»

The article briefly presents the question of deformability of the slab foundations of the surface support for wooden superstructures of the supports of railway bridges made of wood concrete with reinforcement rods of wood, as expanding the practice of widespread sharing of various local materials in the manufacture of reinforced concrete and structures made of them. Deformation properties, the relationship between stresses and strains of a material such as wood concrete.

Currently one of the main materials for the construction of buildings and structures is concrete. Improving the performance of concrete is a priority of modern scientific research. Frequent transitions through zero degrees in the autumn-spring seasons, other aggressive factors greatly affect the condition and safety of building materials. This work presents the experience of modifying heavy concrete M200, polymer additive Amokor KM. The data on increased strength characteristics of materials were obtained as a result of 2 years of field tests.

The paper investigates the strength characteristics during compression and bending at low temperatures of concrete based on local raw materials of Yakutia, and local wood using polymer impregnation «Amokor», as a result of which data on the increase in strength characteristics of the material, the internal structure of modified concrete are obtained.

Today, the main materials for constructing buildings and structures are concrete, brick, wood, and metal. Improving the performance characteristics of these materials is a priority task of modern scientific research. The paper presents the experience of modifying heavy concrete М200, М75, and М125 using polymer impregnation «Amocor». Data on the increase in the strength characteristics of the materials under study have been obtained. Tests were conducted on bending within a wide range of climatic temperatures from +20 °C to –60 °C. It was revealed that the strength of unmodified samples decreased at a test temperature of –30 °C, which is explained by the growth of internal stresses. Modification of the samples allowed for the removal of internal stresses.