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BIRSS RSM-2M M550 Moroz — R4 repair mix with anti-freeze admixture
BIRSS

BIRSS RSM-2M M550 Moroz — R4 repair mix with anti-freeze admixture

Thixotropic repair mortars

The anti-freeze admixture in BIRSS RSM-2M M550 Moroz extends the construction season: the mix, based on Portland cement and special cements with fibres, is designed for repair at low and sub-zero temperatures and is applied by hand. It is used to fill vertical joints of concrete and reinforced concrete structures, cracks, recesses and grooves, and to restore areas without formwork. At −15 °C the mortar reaches 10 MPa in compression in 3 days and 20 MPa in 28 days, at +20 °C 35 and 55 MPa; class R4, F2 400.

Specifications

ManufacturerBIRSS — AO Opytny Zavod Sukhikh Smesey (Experimental Dry Mix Plant), Moscow
Typethixotropic repair mortars
Usebridges and overpasses, tunnels and metro, hydraulic structures and dams, columns and beams, industrial buildings
BaseBIRSS RSM-2M M550 Moroz dry repair mix is a material based on Portland cement and special cements, graded sand, fibres and chemical admixtures, including an anti-freeze admixture that makes it possible to extend the construction season and improve the functional properties of the mortar: adhesion, …
Colourgrey
Packagingbag 40 kg
Application methodBIRSS RSM-2M M550 Moroz dry repair mix is intended for repair at low and sub-zero ambient temperatures for the following work: filling vertical joints of concrete and reinforced concrete structures; repairing cracks and other recesses and grooves in concrete surface elements; repairing concrete surface elements without formwork. Recommended for hand application. Use of the dry mix at ambient temperatures above +5 °C is possible only after consultation
Application temperature−15…+30 °C
Key propertiesmaximum aggregate size, mm: 5; workability grade: Pk2/4-8; workability retention, min: 20; bond strength to substrate, MPa: 2; compressive strength, MPa, not less than At t= -15 °C At t= +20 °C -1 / 3 days 3/10 15/35 - 7 / 28 days 15/20 50/55; flexural strength, MPa, not less than At t =-15 °C At t = +20 °C - 1 day/3 days -/2 -3 - 7 days/28 days 3/6 5/10; water impermeability: W12; frost resistance: F2 400; sulphate resistance coefficient: 0.9; service temperature, °C: from -50 to +70
Standardsclass R4 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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