REKS® Strukto 100 — thixotropic R4 repair mortar resistant to acidic media
Non-shrink fibre-reinforced R4 mortar for bridges, tunnels, dams and treatment plants, tested for resistance in liquid acidic aggressive media.

A smooth finish on new concrete structures and final levelling as part of repair systems for old concrete are carried out with the non-shrink thixotropic mortar REKS® BS. It fills voids and cracks, removes irregularities and forms a surface for protective coatings, and is suitable for final finishing of reinforced concrete and local levelling of horizontal and vertical areas. Aggregate size 0.315 mm, flowability retained for at least 30 minutes, class R3 per GOST R 56378, compressive strength at 28 days from 35 MPa.
| Manufacturer | REKS — OOO “SPS” |
|---|---|
| Type | thixotropic repair mortars |
| Use | industrial buildings, columns and beams, tanks and treatment plants |
| Base | non-shrink thixotropic cementitious mortar for repair and final levelling of concrete surfaces |
| Colour | grey |
| Packaging | bags 25 kg |
| Application method | for a smooth finish on new concrete structures and as part of repair systems for old concrete. Applied in layers of 1–10 mm, it fills voids and cracks and removes irregularities, forming an ideal surface for applying protective coatings; repair and final finishing of concrete and reinforced concrete structures; levelling of concrete surfaces in routine repair and in new construction; local levelling of horizontal and vertical surfaces |
| Application temperature | +5…+30 °C |
| Key properties | modulus of elasticity: ≥15,000 MPa; density of hardened mortar: 2.05 ± 5 % t/m³; freeze-thaw resistance: F2 300; bond to substrate at 28 days: ≥1.5 MPa; compressive strength at 28 days: ≥35 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: 0.315 mm; flowability (truncated cone spread on a flow table): 125–140 mm; flowability retention: ≥30 minutes; 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 |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
Non-shrink fibre-reinforced R4 mortar for bridges, tunnels, dams and treatment plants, tested for resistance in liquid acidic aggressive media.
Non-shrink thixotropic class R3 mortar for local repair and levelling of reinforced concrete in industrial buildings and tanks; compression from 40 MPa.
Grout in 19 kg bags for fixing sleepers in track concrete, installing railings and posts and fixing rebar; 10 MPa after 2 hours.
Fibre-reinforced flowable mix for grouting under bridge bearings and equipment foundations and repairing roads and airfields; 50 MPa after one day.
Impregnating compound of components A and B for restoring the load-bearing capacity of concrete and repairing track concrete; tensile strength from 20 MPa.
Non-shrink fibre-reinforced class R3 mortar for repairing concrete and reinforced concrete by wet spraying, including in large volumes; from 35 MPa.