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REKS® Graut 3.0 — rapid-setting fibre-reinforced mortar for chases and joints
REKS

REKS® Graut 3.0 — rapid-setting fibre-reinforced mortar for chases and joints

Cementitious grouts

Of the Graut grouts, only REKS® Graut 3.0 is rapid-setting: after 40 minutes it reaches at least 3 MPa in compression, after 1 hour 8 MPa and after 2 hours 15 MPa. The fibre-reinforced non-shrink highly flowable mortar fixes cables and pipelines in chases in concrete, brick and stone, grouts joints in precast reinforced concrete, and is used to repair hydraulic structures and replace sleepers and sleeper blocks in track concrete. Class R4 per GOST R 56378, from 45 MPa in compression at 28 days, bond to the substrate at least 2.5 MPa.

Specifications

ManufacturerREKS — OOO “SPS”
Typecementitious grouts
Usehydraulic structures and dams, tunnels and metro, columns and beams
Basefibre-reinforced rapid-setting non-shrink repair mortar with high flowability
Colourgrey
Packagingbag 25 kg
Application methodmonolithic grouting of joints in precast reinforced concrete structures; repair of hydraulic structures and water transport facilities; replacement of timber sleepers and composite sleeper blocks in track concrete
Application temperaturenot below +5 °C
Curingprotection from precipitation for at least 24 h; in hot and windy weather — water spraying and covering with film
Key propertiesmodulus of elasticity: ≥25,000 MPa; density of hardened mortar: 2.25 ± 5 % t/m³; freeze-thaw resistance: F2 400; bond to substrate at 28 days: ≥2.5 MPa; water impermeability: W16; compressive strength at 28 days: ≥45 MPa; flexural strength at 1 day: ≥4 MPa; flexural strength at 28 days: ≥6 MPa; bond to substrate at 28 days after 50 freeze-thaw cycles in salts: ≥2.2 MPa; aggregate size: 2.5 mm; compressive strength at 1 hour: ≥8 MPa; compressive strength at 2 hours: ≥15 MPa; compressive strength at 40 minutes: ≥3 MPa; capillary water absorption: no more than 0.4 kg/(m²·min⁰·⁵); workability retention: 10–20 minutes; workability: 160–240 mm
Shelf life12 months from the date of manufacture
Standardsclass R4 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.

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