BINDER FOR PRODUCTION OF LIGHTWEIGHT CONCRETE Russian patent published in 2023 - IPC C04B7/13 C04B28/04 C04B22/00 C04B24/16 C04B40/00 C04B111/20 

FIELD: building materials.

SUBSTANCE: invention can be used for production of structural, thermal insulation and structural lightweight concrete used in civil and industrial construction. A binder containing Portland cement, natural zeolite, ground together with a plasticizing additive. In this case, natural zeolite is used, pre-calcined to constant weight at a temperature of 175±2°C, ground together with "Poliplast SP-1" naphthalene sulfonate plasticizer to a specific surface area of 5000 cm²/g and then heat-treated at a temperature of 480±5°C for 25-30 minutes, while the ratio of these components is, wt.%: Portland cement – 49.9-69.8; heat-treated zeolite – 29.9-49.9; "Poliplast SP-1" naphthalene sulfonate plasticizer - balance.

EFFECT: expansion of the raw material base of binders for lightweight concrete, production of lightweight concrete with high frost resistance.

1 cl, 2 tbl, 4 ex