BIRSS 59 S1 M1000 — non-shrink self-compacting concrete mix for grouting
Concrete mix with quartz and granite aggregates for grouting and anchoring equipment, repairing columns and joints; 100 MPa at 28 days.

Structural repair of concrete and reinforced concrete is the main task of BIRSS RSM-2M M350, a rapid-hardening thixotropic mix with reinforcing fibre and sand up to 1.25 mm. It is used to restore elements of road bridges and tunnels and structures under dynamic loads, and to fill joints between precast elements, potholes and cavities without formwork. After one day the mortar reaches at least 15 MPa in compression, at 28 days 35 MPa; water impermeability W12, frost resistance F2 400, produced to STO 05668056-004-2012.
| 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 M350 dry repair mix is a material based on special cements, graded fine sand, reinforcing fibre and chemical admixtures which, when mixed with water, give a rheoplastic, non-segregating, rapid-hardening thixotropic… |
| Colour | grey |
| Packaging | bags 25 / 40 kg |
| Application method | BIRSS RSM-2M M350 repair mix is recommended for structural repair of 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; those in… |
| 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 day 15 - 28 days 35; flexural strength, MPa, not less than -1 day 3 - 28 days 7; water impermeability: W12; frost resistance: F2 400; sulphate resistance coefficient: 0.9; service temperature, °C: from -50 to +70 |
| Standards | 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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