BIRSS
BIRSS RSM-1 M450 Moroz — fibre-reinforced R4 mix for repair down to −15 °C
Thixotropic repair mix for bridges, tunnels and joints of precast structures, placed at temperatures from −15 to +5 °C.
Price on request
BIRSS
BIRSS RSM-2 M350 — thixotropic R3 mix with normal setting times
BIRSS RSM-2 M350 has normal setting times and compensated shrinkage, and the mortar retains workability for 40 minutes. The thixotropic mix based on special cements and graded sand up to 1.25 mm is used to repair bridges and tunnels, structures under dynamic loads, joints between precast elements, potholes without formwork and structures in constant contact with water. Class R3 to GOST R 56378; at 28 days compressive strength is at least 35 MPa, frost resistance F2 400, water impermeability W12.
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-2 M350 dry repair mix is a material based on special cements, graded sand and chemical admixtures. When mixed with water it gives a rheoplastic, non-segregating thixotropic mortar with compensated shrinkage and normal setting times. |
| Colour | grey |
| Packaging | bags 25 / 40 kg |
| Application method | BIRSS RSM-2 M350 is recommended for repairing concrete and reinforced concrete structures where high compressive strength 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; structures in constant contact with water… |
| Application temperature | +5…+35 °C |
| Key properties | maximum aggregate size, mm: 1.25; workability grade: Pk2/4-8; workability retention, min: 40; bond strength to substrate, MPa: 2; compressive strength, MPa, not less than - 1 / 28 days 8.5 / 35; flexural strength, MPa, not less than - 1 / 28 days 2.5 / 7; water impermeability: W12; frost resistance: F2 400; sulphate resistance coefficient: 0.9; service temperature, °C: from -50 to +70 |
| Standards | class R3 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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BIRSS VRS 600 — R4 repair mix for high-strength concrete structures
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