BIRSS
BIRSS 59 S1 M800 Moroz — high-strength flowable R4 mix for the cold season
High-strength flowable mortar for repairing pavements, bridges and floors in frost: at −15 °C it reaches 45 MPa in compression in 28 days.
Price on request
BIRSS
BIRSS RSM-2M M450 — thixotropic R4 mix with aggregate up to 5 mm
Sand up to 5 mm and reinforcing fibre are included in BIRSS RSM-2M M450, a rapid-hardening thixotropic mix with compensated shrinkage. It is chosen when the repaired concrete and reinforced concrete must have high technical performance: for road bridges and tunnels, structures under dynamic loads, joints of precast reinforced concrete, potholes and cavities filled without formwork. After one day 15 MPa in compression, at 28 days 45 MPa; class R4 to GOST R 56378, W12, F2 400.
Specifications
| 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 RSM-2M M450 dry repair mix is a material based on special cements, graded sand, reinforcing fibre and chemical admixtures. When mixed with water it gives a rheoplastic, non-segregating, rapid-hardening thixotropic mortar with compensated… |
| Colour | grey |
| Packaging | bag 40 kg |
| Application method | BIRSS RSM-2M M450 repair mix is recommended for repairing concrete and reinforced concrete structures where high technical performance is required: elements of road bridges and tunnels; structural elements subject to dynamic loads; filling vertical and horizontal joints between precast elements; potholes and cavities without formwork in areas with increased surface quality requirements; those in constant… |
| Application temperature | +5…+35 °C |
| Key properties | maximum aggregate size, mm: 5; workability grade: Pk2/4-8; workability retention, min: 40; bond strength to substrate, MPa: 2; compressive strength, MPa, not less than - 1 / 28 days 15 / 45; flexural strength, MPa, not less than - 1 / 28 days 3 / 7; water impermeability: W12; frost resistance: F2 400; sulphate resistance coefficient: 0.9; service temperature, °C: from -50 to +70 |
| Standards | class R4 to GOST R 56378; STO 05668056-004-2012 |
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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