The winter flowable mortar is placed in frost down to −20 °C without heating: the coarse-grained mix with polymer fibre and ultra-rapid strength gain gives 20.0 MPa in compression after just 2 h. It is used for urgent structural repair of deep spalls, gouges and delaminations on floors, roads, airfields, bridges and equipment foundations. After 28 days the compressive strength is 60.0 MPa (B50), watertightness W20, frost resistance F1 800, class R4.
| Manufacturer | Pakol — OOO “NPO Pakol”, Vysokaya Gora |
|---|---|
| Type | flowable repair mortars |
| Use | floors, roads and airfields, bridges and overpasses, industrial buildings, equipment foundations |
| Base | Dry construction mix, coarse-grained, with polymer fibre, non-shrink, flowable type, on a cement binder with ultra-rapid strength gain |
| Packaging | 25 kg bags (three-ply with a polyethylene liner) |
| Application method | For urgent structural repair of concrete and reinforced concrete structures by eliminating local damage (spalls, gouges, cavities, delaminations, etc.) from 10 to 200 mm deep on horizontal and inclined (not more than 10°) surfaces at negative (down to -20 °C) and low positive ambient temperatures |
| Application temperature | down to −20 °C without heating |
| Key properties | aggregate size, mm: 3.0; mixing water, l per 1 kg: 0.12…0.15; workability: (Rk6) 26-30; bond strength to substrate, MPa: 2.5; strength after 2 h: flexural 3.0 / compressive 20.0 MPa; strength after 24 h: flexural 6.0 / compressive 35.0 MPa; strength after 28 days: flexural 8.0 (Btb5.2) / compressive 60.0 (B50) MPa; modulus of elasticity, GPa: 25.0; sulphate resistance group: III; frost resistance: F1 800, F2 300; watertightness: W20 |
| Shelf life | 12 months from the date of manufacture; storage at -40…+50 °C, humidity no more than 70 % |
| Standards | Rk6, B50, Btb5.2, W20, F1 800 to GOST 31358-2019 (taking into account the requirements of GOST R 56378-2015, class R4); TU 23.64.10-008-76310469-2021 |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
R3 mortar with grain up to 1 mm for non-structural repair of small defects in columns, beams and walls of industrial buildings at temperatures from +5 °C; B30.
Winter B45 mix for urgent filling of spalls and cavities on walls and ceilings of dams and tanks without heating down to −20 °C; 20.0 MPa after 2 h.
Fibre-reinforced shotcrete mix for structural repair of walls and ceilings of bridges, tunnels and tanks in frost down to −10 °C without heating.
Off-season flowable mortar for autumn and spring: placing at −10…+7 °C, 15.0 MPa after 2 h, class B50 — for floors, roads and airfields.
Non-structural filling of large spalls and gouges on walls, columns and beams of industrial buildings: a thixotropic R3 mix with 3 mm aggregate.
Class R4 flowable mortar with 1.0 mm aggregate for structural repair of small spalls and cavities in industrial buildings and on airfields; W16, F1 600.
