DEVELOPED BINDING COMPOSITION FOR CONCRETE Russian patent published in 2021 - IPC C04B111/00 C04B22/06 C04B24/18 C04B24/22 C04B7/02 C04B7/13 C04B7/153 C04B7/24 

FIELD: building materials.

SUBSTANCE: invention relates to a binding composition for concrete for binding the aggregate for concrete to produce a concrete material. The developed binding composition contains at least one primary binder in a ratio from 10 to 60 percent by weight, and at least one secondary binder in a ratio from 40 to 90 percent by weight. At the same time, the primary binder is selected from the group of primary materials, which have the ability to self-hydration. The secondary binder is selected from the group of secondary materials, which have the ability to induced hydration. The primary binder contains particles the modal average diameter of which is from 1/4 to 1/25 relatively to the modal average diameter of the smallest particles of the fine-dispersed aggregate. At the same time, the modal average diameter of the smallest particles of the fine-dispersed aggregate refers to the modal average diameter of the particles of the smallest fine-dispersed particles present in the concrete aggregate. The secondary binder contains particles the modal average diameter of which is equal or less than the modal average diameter of the primary binder particles. The modal average diameter of the secondary binder is from 1/4 to 1/625 relatively to the modal average diameter of the smallest particles of the fine-dispersed aggregate. In this case, the specified group of primary materials and the specified group of secondary materials form a lattice structure of macro-micro-nanoparticles.

EFFECT: improved binding characteristics, increased strength characteristics and durability of the ready-made concrete material.

11 cl, 3 tbl, 4 dwg