Local structural repair of vertical and horizontal structures is the purpose of BIRSS 59 S2 M700, a thixotropic mix with polymer microfibre and aggregate up to 5 mm. It is used to restore elements of bridges and tunnels under dynamic and vibration loads, reinforced and prestressed structures, port and hydraulic structures, and to fill joints and cavities without formwork. Compressive strength 25 MPa after one day, 45 MPa after 3 days and 70 MPa at 28 days; W20, F2 400, Fkz100.
| Manufacturer | BIRSS — AO Opytny Zavod Sukhikh Smesey (Experimental Dry Mix Plant), Moscow |
|---|---|
| Type | thixotropic repair mortars |
| Use | bridges and overpasses, tunnels and metro, hydraulic structures and dams, columns and beams, industrial buildings |
| Base | BIRSS 59 S2 M700 is a dry mix based on special cements and high-quality natural fillers with a complex of chemical admixtures, reinforced with polymer microfibre. When mixed with water it forms a rapid-hardening, rheoplastic, non-segregating thixotropic mortar with a high rate of… |
| Colour | grey |
| Packaging | bags 25 / 40 kg |
| Application method | BIRSS 59 S2 M700 is used for local structural repair of vertical and horizontal concrete and reinforced concrete structures: repair of reinforced concrete elements of road bridges and tunnels subject to dynamic and vibration loads; filling rigid vertical and horizontal joints between precast elements; filling potholes and cavities without formwork; repair of reinforced and prestressed structures; repair of port and hydraulic structures… |
| Application temperature | +5…+35 °C |
| Key properties | maximum aggregate size, mm: 5; workability grade: Pk2/4-8; workability retention, min: 30; bond strength to substrate, MPa: 2; compressive strength, MPa, not less than - 1 day/3 days/28 days 25/45/70; flexural strength, MPa, not less than - 1 day/3 days/28 days 7/8/10; water impermeability: W20; frost resistance: F2 400; frost resistance of the contact zone: Fkz100; sulphate resistance coefficient: 0.9; service temperature, °C: from -50 to +70 |
| Standards | class R4 to GOST R 56378 |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
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