REKS® Strukto 300 — rapid-setting R4 mortar for repair and joint filling
Thixotropic class R4 cementitious mortar for fast concrete repair and joint filling in industrial buildings and tunnels; from 30 MPa after one day.

REKS® AKRILIK NV, a compound for deep impregnation and strengthening of concrete products, helps restore the load-bearing capacity and increase the strength of concrete and reinforced concrete structures with cracks and other defects. It is also used for repairing track concrete, with work carried out at temperatures from 0 to +25 °C. Tensile strength is at least 20 MPa, compressive strength from 35 MPa, adhesion to concrete from 4 MPa and to metal from 8 MPa, elongation at break from 10 %; 1 kg kit of components A and B.
| Manufacturer | REKS — OOO “SPS” |
|---|---|
| Type | other concrete repair materials |
| Use | columns and beams, tunnels and metro |
| Base | compound for deep impregnation of concrete products and their strengthening in the presence of cracks and other defects |
| Colour | from colourless to yellow |
| Packaging | kit 1 kg; plastic pail, component A — 0.9 kg; plastic bottle, component B — 0.1 kg |
| Application method | restoration of load-bearing capacity and increase of strength of concrete and reinforced concrete structures; repair of track concrete |
| Application temperature | 0…+25 °C |
| Key properties | tensile strength: ≥20 MPa; adhesion to concrete: (M300) ≥4 MPa; compressive strength: ≥35 MPa; adhesion to metal: ≥8 MPa; gel time at 20 °C: in a 100 g sample ≥10 minutes; elongation at break: ≥10 %; viscosity of component A: (at 20 °C) ≤90 cP; viscosity of component B: (at 20 °C) ≤40 cP; impact strength: ≥10 kJ/m² |
| Shelf life | 6 months from the date of manufacture; storage at +5…+25 °C |
| Standards | TU 20.16.53-004-10839198-2020 |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
Thixotropic class R4 cementitious mortar for fast concrete repair and joint filling in industrial buildings and tunnels; from 30 MPa after one day.
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