FIELD: building materials.
SUBSTANCE: invention is recommended for the manufacture of structures made of concrete or monolithic construction of industrial, civil and special purposes. High-strength concrete obtained from a mixture including wt.%: Portland cement 18.32-19.42; sand with fineness modulus 2.1 30.16-30.56; crushed granite fraction 3-10 mm 39.89-40.39; complex reactive stabilizer with D=0.750 g/cm3, pH=8.3, consisting of the following components, wt.%: blast-furnace metallurgical slag with a specific surface, S=470 m2/kg, 81.06-82.00; aluminous cement 15.35-16.2; methylcellulose 1.05-1.10; polycarboxylate polymer 1.60-1.64, 3.30-3.39; an aqueous solution of a complex chemical additive, p=1.047 g/cm3, pH=6.8, consisting of the following components, wt.%: polycarboxylate polymer 37.74-39.00; macromolecular compound 5.40-5.66; silicon dioxide nanodispersions 22.30-22.64; calcium nitrite 14.80-15.09; calcium nitrate 18.50-18.87; water 7.09-7.16.
EFFECT: increased mobility, reduced delamination of the self-compacting concrete mixture and creation of concrete based on it with increased compressive strength and increased tensile strength in bending.
1 cl, 2 tbl
Title | Year | Author | Number |
---|---|---|---|
HIGH STRENGTH CONCRETE | 2022 |
|
RU2781588C1 |
HIGH-STRENGTH CONCRETE | 2019 |
|
RU2705114C1 |
HIGH-STRENGTH CONCRETE | 2022 |
|
RU2778220C1 |
HIGH-STRENGTH CONCRETE | 2020 |
|
RU2727990C1 |
HIGH-STRENGTH CONCRETE | 2016 |
|
RU2614177C1 |
HIGH-STRENGTH CONCRETE | 2019 |
|
RU2717399C1 |
HIGH-STRENGTH CONCRETE | 2016 |
|
RU2616964C1 |
HIGH STRENGTH CONCRETE | 2022 |
|
RU2781587C1 |
HEAT-INSULATING CONCRETE | 2020 |
|
RU2729547C1 |
HIGH-STRENGTH CONCRETE | 2018 |
|
RU2693085C1 |
Authors
Dates
2023-08-03—Published
2023-02-01—Filed