Basic microcement is a finely dispersed high-flow mix with particles no larger than 0.1 mm (average size 10–30 µm) for preparing an injection repair grout. It is used to strengthen foundations, consolidate internal damage in concrete, brick and stone structures, and stabilise bases and soils, including in tunnels and metro. At a water/solids ratio of 0.3 the grout reaches 40.0 MPa in compression after 28 days (B30); at 0.4 and 0.5 the workability retention is 60 and 80 min.
| Manufacturer | Pakol — OOO “NPO Pakol”, Vysokaya Gora |
|---|---|
| Type | other concrete repair materials |
| Use | tunnels and metro, columns and beams |
| Base | Finely dispersed high-flow dry mix on a cement binder (basic microcement) |
| Packaging | 25 kg bags (three-ply with a polyethylene liner) |
| Application method | Used as an injection repair grout for strengthening foundations, consolidating internal damage in concrete, brick and stone structures, and stabilising bases and soils |
| Key properties | maximum particle size: 0.1 mm (100 µm); average particle size: 10–30 µm; water/solids ratio (W/S): 0.3 / 0.4 / 0.5; workability: Pk4 (cone penetration 12–14 cm) / spread over 30 cm; workability retention: 40 / 60 / 80 min; Marsh funnel viscosity: — / 85±2 / 65±2 s; strength after 24 h: flexural 4.0 / compressive 16.0 MPa (W/S 0.3); after 28 days: flexural 6.0 (Btb4.4) / compressive 40.0 (B30) MPa (W/S 0.3) |
| Shelf life | 12 months from the date of manufacture |
| Standards | Pk4, B30, Btb4.4, W10, F1 150 (at W/S – 0.3) to GOST 31357-2007 (taking into account the requirements of GOST 33762-2016 and GOST R 59538-2021); TU 23.64.10-009-76310469-2021 |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
High-strength microcement for injection strengthening of foundations, consolidation of structures and soil stabilisation; 85.0 MPa compressive at W/S 0.3.
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.
Low-viscosity epoxy resin for injecting cracks 0.1–0.8 mm wide through packers in columns, beams and floors; adhesion to concrete from 3.0 MPa.
Finely dispersed cementitious skim coat for finish repair and levelling of concrete, brick and stone walls and ceilings; bond to substrate 2.8 MPa.
Coarse-grained winter B50 flowable mortar for deep gouges on bridges and equipment foundations, without heating down to −20 °C; 20.0 MPa after 2 h.
Non-structural filling of large spalls and gouges on walls, columns and beams of industrial buildings: a thixotropic R3 mix with 3 mm aggregate.
