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BIRSS RSM-2M M350 Mekh — fibre-reinforced R3 shotcrete mix for bridges and tunnels
BIRSS

BIRSS RSM-2M M350 Mekh — fibre-reinforced R3 shotcrete mix for bridges and tunnels

Sprayed concrete mixes

BIRSS RSM-2M M350 Mekh, a rapid-hardening thixotropic mix based on special cements with reinforcing fibre and sand up to 1.25 mm, is applied by shotcreting. It is used in structural repair of bridges and tunnels, hydraulic structures, columns and beams, and for filling joints between precast elements and cavities without formwork. Class R3 to GOST R 56378; compressive strength 15 MPa after one day and 35 MPa at 28 days, flexural 3.5 and 7 MPa, water impermeability W10.

Specifications

ManufacturerBIRSS — AO Opytny Zavod Sukhikh Smesey (Experimental Dry Mix Plant), Moscow
Typeshotcrete mixes
Usebridges and overpasses, tunnels and metro, hydraulic structures and dams, columns and beams, industrial buildings
BaseBIRSS RSM-2M M350 Mekh dry repair mix is a material based on special cements, graded fine sand, reinforcing fibre and chemical admixtures which, when mixed with water, give a rheoplastic, non-segregating, rapid-hardening thixotropic…
Colourgrey
Packagingbags 25 / 40 kg
Application methodBIRSS RSM-2M M350 Mekh repair mix is recommended for structural repair of concrete and reinforced concrete structures where high compressive strength is required: elements of road bridges and tunnels; structural elements subject to dynamic loads; filling vertical and horizontal joints between precast elements; potholes and cavities without formwork in areas with increased surface quality requirements; those…
Application temperature+5…+35 °C
Key propertiesmaximum aggregate size, mm: 1.25; workability grade: Pk2/4-8; workability retention, min: 40; bond strength to substrate, MPa: 2; compressive strength, MPa, not less than - 1 / 28 days 15 / 35; flexural strength, MPa - 1 / 28 days 3.5 / 7; water impermeability: W10; frost resistance: F2 400; sulphate resistance coefficient: 0.9; service temperature, °C: from -50 to +70
Standardsclass R3 to GOST R 56378; STO 05668056-004-2012

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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