REKS® R4 — mortar for structural repair of reinforced concrete, 60 MPa
Fibre-reinforced thixotropic class R4 mortar for structural repair of reinforced concrete on vertical, horizontal and overhead surfaces.

The non-shrink fibre-reinforced thixotropic mortar REKS® R3 is intended for the repair and restoration of reinforced concrete structures and the local repair of damaged and deteriorated elements. It is applied in interior and exterior work to vertical, horizontal and overhead surfaces in industrial buildings, on columns, beams, tanks and treatment plants. Class R3 per GOST R 56378, compressive strength at 28 days from 40 MPa, water impermeability W12; the material is approved for use at domestic and drinking water supply facilities.
| Manufacturer | REKS — OOO “SPS” |
|---|---|
| Type | thixotropic repair mortars |
| Use | industrial buildings, columns and beams, tanks and treatment plants |
| Base | non-shrink fibre-reinforced thixotropic cementitious mortar for repair and levelling of concrete surfaces |
| Colour | grey |
| Packaging | bags 25 kg |
| Application method | repair and restoration of reinforced concrete structures; local repair of damaged and deteriorated elements of concrete and reinforced concrete structures; for interior and exterior work, on vertical, horizontal and overhead surfaces |
| Application temperature | +5…+30 °C |
| Key properties | modulus of elasticity: ≥15,000 MPa; density of hardened mortar: 2.25 ± 5 % t/m³; freeze-thaw resistance: F2 300; bond to substrate at 28 days: ≥1.5 MPa; water impermeability: W12; compressive strength at 28 days: ≥40 MPa; flexural strength at 1 day: ≥2 MPa; flexural strength at 28 days: ≥4 MPa; bond to substrate at 28 days after 50 freeze-thaw cycles in salts: ≥1.5 MPa; aggregate size: 1.25 mm; flowability (truncated cone spread on a flow table): 120–135 mm; flowability retention: ≥45 minutes; compressive strength at 1 day: ≥10 MPa; capillary water absorption: no more than 0.4 kg/(m²·min⁰·⁵) |
| Shelf life | 12 months from the date of manufacture |
| Standards | class R3 per GOST R 56378; approved for use at domestic and drinking water supply facilities |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
Fibre-reinforced thixotropic class R4 mortar for structural repair of reinforced concrete on vertical, horizontal and overhead surfaces.
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