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REKS® Strukto BS 3 — rapid-hardening thixotropic R4 mortar for work down to −10 °C
REKS

REKS® Strukto BS 3 — rapid-hardening thixotropic R4 mortar for work down to −10 °C

Thixotropic repair mortars

When repairs cannot be drawn out, REKS® Strukto BS 3 is used — a rapid-setting, rapid-hardening fibre-reinforced mortar of thixotropic type that can be worked at temperatures down to −10 °C. It restores vertical and overhead elements of concrete and reinforced concrete structures without formwork, beams and columns, including prestressed ones, and structures in a marine environment and under repeated loading. Compressive strength is at least 20 MPa after 2 hours, 30 MPa after 4 hours and 40 MPa after one day; class R4 per GOST R 56378, W18.

Specifications

ManufacturerREKS — OOO “SPS”
Typethixotropic repair mortars
Usebridges and overpasses, tunnels and metro, hydraulic structures and dams, industrial buildings, tanks and treatment plants, columns and beams
Baserapid-setting, rapid-hardening, high-strength fibre-reinforced cementitious repair mortar of thixotropic type that can be applied at a temperature of −10 °C
Colourgrey
Packagingbag 25 kg
Application methodrepair of damaged vertical and overhead elements of concrete and reinforced concrete structures without formwork; repair of structures in service in a marine environment; repair of structural elements subject to repeated loading
Application temperature−10…+5 °C and above (at −10 °C layer 20–100 mm, at +5 °C — 10–60 mm)
Curingwhen working above +5 °C — water spraying and covering for 24 h after the initial set
Key propertiescompressive strength at 4 hours: ≥30 MPa; modulus of elasticity: ≥25,000 MPa; density of hardened mortar: 2.3 ± 5 % t/m³; freeze-thaw resistance: F2 300; bond to substrate at 28 days: ≥2.5 MPa; water impermeability: W18; compressive strength at 28 days: ≥60 MPa; flexural strength at 1 day: ≥5 MPa; flexural strength at 28 days: ≥8 MPa; bond to substrate at 28 days after 50 freeze-thaw cycles in salts: ≥2.0 MPa; aggregate size: 2.5 mm; flowability (truncated cone spread on a flow table): 125–135 mm; compressive strength at 2 hours: ≥20 MPa; flowability retention: ≥10 minutes; compressive strength at 1 day: ≥40 MPa; flexural strength at 2 hours: ≥3 MPa; capillary water absorption: no more than 0.4 kg/(m²·min⁰·⁵); flexural strength at 4 hours: ≥4 MPa; sulphate resistance coefficient (365 days): 0.982 %
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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