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REKS® Strukto 70 — thixotropic R4 repair mortar, 70 MPa, W20
REKS

REKS® Strukto 70 — thixotropic R4 repair mortar, 70 MPa, W20

Thixotropic repair mortars

Strukto 70 is the strongest grade of the thixotropic REKS® Strukto range: at 28 days at least 70 MPa in compression and 12 MPa in flexure, with a modulus of elasticity from 35,000 MPa. The mortar is non-shrink, fibre-reinforced and of class R4 per GOST R 56378; it is used to repair bridges, overpasses, tunnels, dams, tanks, beams and columns, including prestressed ones and those in a marine environment. Freeze-thaw resistance F2 500, water impermeability W20, aggregate size 3.0 mm; the mortar is approved for use at domestic and drinking water supply facilities.

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
Basenon-shrink fibre-reinforced thixotropic cementitious repair mortar
Colourgrey
Packagingbag 25 kg
Application methodrepair and waterproofing of damaged elements of concrete and reinforced concrete structures; repair of structures in service in a marine environment; repair of structural elements subject to repeated loading; repair in industrial premises in the presence of mineral oils, lubricants, etc.; repair of structures exposed to sulphates
Application temperature+5…+30 °C
Key propertiesmodulus of elasticity: ≥35,000 MPa; density of hardened mortar: 2.2 ± 5 % t/m³; freeze-thaw resistance: F2 500; bond to substrate at 28 days: ≥2.5 MPa; water impermeability: W20; compressive strength at 28 days: ≥70 MPa; flexural strength at 1 day: ≥4.5 MPa; flexural strength at 28 days: ≥12 MPa; bond to substrate at 28 days after 50 freeze-thaw cycles in salts: ≥2.2 MPa; aggregate size: 3.0 mm; flowability (truncated cone spread on a flow table): 110–130 mm; flowability retention: 20–40 minutes; shrinkage: ~500 µm/m; compressive strength at 1 day: ≥30 MPa; capillary water absorption: no more than 0.4 kg/(m²·min⁰·⁵); sulphate resistance coefficient (365 days): 0.982 %
Shelf life12 months from the date of manufacture
Standardsclass R4 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.

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