FIELD: bitumen binder.
SUBSTANCE: invention is related to a bitumen binder modified with polyphosphoric acid, which has increased shear stability, and a method for its production. Bitumen binder contains bitumen and polyphosphoric acid. Moreover, commercial petroleum road bitumen grade “БНД 70/100” with a needle penetration depth at 25°C of 71 to 100 * 0.1 mm is used as bitumen, with the following component ratio, wt.%: polyphosphoric acid with a mass concentration of 105-115% - 0.05-2.0 and viscous road bitumen with a needle penetration depth at 25°C of 71-100 * 0.1 mm - to 100.0.
EFFECT: development of a composition and method for producing a modified bitumen binder, facilitating production of a binder with increased shear stability and an extended temperature range of operation in accordance with “ГОСТ Р 58400.1-2019” for use in the construction, repair and reconstruction of coatings and foundations of roads, bridges, airfields and others construction projects.
2 cl, 2 tbl, 13 ex
| Title | Year | Author | Number |
|---|---|---|---|
| POLYMER-BITUMEN BINDER WITH INCREASED RESISTANCE TO SHEAR DEFORMATIONS AND METHOD FOR PRODUCTION THEREOF | 2020 |
|
RU2765646C1 |
| COMPOSITION OF ROAD BITUMEN (VERSIONS) AND METHOD FOR ITS PRODUCTION | 2022 |
|
RU2800286C1 |
| COMPOSITION AND METHOD FOR OBTAINING MODIFIED BITUMEN FOR ROAD CONSTRUCTION | 2022 |
|
RU2798340C1 |
| ASPHALT CONCRETE MIX CONTAINING A FILLER MADE OF METALLURGICAL WASTE AND A PG-GRADE BITUMEN BINDER | 2021 |
|
RU2787268C1 |
| MODIFIED BITUMEN FOR CONSTRUCTION AND METHOD FOR ITS OBTAINING | 2023 |
|
RU2812072C1 |
| METHOD OF PRODUCING COMPOUND ROAD BITUMEN | 2019 |
|
RU2729248C1 |
| STABILIZING MODIFYING ADDITIVE FOR MACADAM-MASTIC ASPHALT MIXTURE | 2023 |
|
RU2822938C1 |
| RUBBER-BITUMEN ROAD BINDER FOR ASPHALT-CONCRETE MIXTURE | 2018 |
|
RU2707770C1 |
| METHOD OF PRODUCING MODIFIED BITUMEN | 0 |
|
SU1789534A1 |
| POLYMER-BITUMEN BINDER AND METHOD FOR ITS PREPARATION | 2021 |
|
RU2786861C1 |
