After 2 hours of hardening at +20 °C, the BIRSS 59 S2 M600 Moroz Uskorennaya mortar reaches 20 MPa in compression, after 4 hours 30 MPa, after one day 40 MPa and at 28 days 60 MPa. The mix with polymer microfibre is applied at temperatures from −10 to +25 °C to repair bridges and tunnels under dynamic loads, prestressed structures, port and hydraulic structures, and joints and potholes without formwork. Workability is retained for 15 minutes; class R4, bond to the substrate 2.5 MPa, W16.
| 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 M600 Moroz Uskorennaya 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, … |
| Colour | grey |
| Packaging | bag 40 kg |
| Application method | BIRSS 59 S2 M600 Moroz Uskorennaya is used for 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… |
| Application temperature | −10…+25 °C |
| Key properties | maximum aggregate size, mm: 5; workability grade: Pk2/4-8; workability retention, min: 15; bond strength to substrate, MPa: 2.5; compressive strength, MPa, not less than At t = +20 °C - 2 h /4 h /24 h 20 /30 /40 - 28 days 60; flexural strength, MPa, not less than At t = +20 °C - 2 h /4 h /24 h 3 /4 /6 - 7 days/28 days 8; water impermeability: W16; frost resistance: F2 400; 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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