Low viscosity and high flowability distinguish BIRSS 67 Shpurovaya, a powdered polymer-mineral composite based on cement with 50 µm aggregate. It is used to prepare non-shrink grouting and injection mortars for fixing anchors, injecting cracks, strengthening concrete and masonry structures, grouting bearings during equipment installation, and stabilising soils and foundations. There is no sedimentation after 120 minutes, water retention is at least 98 %, compressive strength 20 MPa after 24 hours and 60 MPa at 28 days.
| Manufacturer | BIRSS — AO Opytny Zavod Sukhikh Smesey (Experimental Dry Mix Plant), Moscow |
|---|---|
| Type | cementitious grouts |
| Use | anchoring of rebar and bolts, tunnels and metro |
| Base | BIRSS 67 SHPUROVAYA injection compound is a powdered polymer-mineral composite based on cement, fillers and a complex of chemical and mineral admixtures. It has low viscosity, high workability and characteristic resistance to aggressive media |
| Colour | grey |
| Packaging | paper bags 20 kg |
| Application method | Non-shrink high-flow grouting and injection mortars: strengthening of concrete and masonry structures, crack injection, monolithic grouting of bearings during equipment installation, injection stabilisation of soils and foundations, fixing of anchors |
| Application temperature | +5…+35 °C |
| Key properties | workability grade: Rk6/26-30; workability retention, min: 40; compressive strength, MPa, not less than - 24 hours 20 - 7 days 50 - 28 days 60; flexural strength, MPa, not less than - 24 hours 4 - 7 days 8 - 28 days 12; water impermeability: W 16; frost resistance: F2 300; service temperature, °C: from -50 to +70; aggregate size: 50 µm; mortar density: 2,000±100 kg/m³; water retention: ≥98 %; sedimentation after 120 min: none; bond strength to substrate at 28 days: ≥2 MPa |
| Shelf life | 12 months provided the packaging remains sealed |
| 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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