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Gidrobeton SRG-4 — thixotropic class R3 repair mortar
Kalmatron

Gidrobeton SRG-4 — thixotropic class R3 repair mortar

Thixotropic repair mortars

Class R3 to GOST R 56378-2015 is declared by the manufacturer for Gidrobeton SRG-4, which forms a thixotropic non-shrink mortar with aggregate up to 2.5 mm. It is used to restore deteriorated concrete and reinforced concrete structures and to level surfaces, applied by hand to a moistened substrate; exposed rebar is first treated with “Kalmatron-Adgeziv”. Compressive strength is at least 25 MPa at 28 days, bond to concrete 2.0 MPa, watertightness W18, frost resistance F1 400.

Specifications

ManufacturerKalmatron — OOO “Kalmatron-SPb”, Saint Petersburg
Typethixotropic repair mortars
Usetanks and treatment plants
Basedry mix: Portland cement, mineral aggregate up to 2.5 mm, a complex of patented chemically active reagents; forms a thixotropic non-shrink mortar
Colourgrey (free-flowing grey powder)
Application methodrepair of deteriorated concrete and reinforced concrete structures, levelling of surfaces; the substrate must be clean and sound: remove plaster, paint, whitewash, loose and delaminated concrete down to “sound” concrete (with a rotary hammer), dust, dirt and oils; clean exposed rebar of concrete around its full circumference for 20 mm and of rust; saturate the surface with water, remove the excess with a rag, treat the rebar with “Kalmatron-Adgeziv”; water 110–120 ml per 1 kg (2.75–3.00 l per 25 kg), mixing with a mixer for 3–5 min, 5 min pause, remixing; adding water is prohibited; by hand with a trowel, spatula or mason’s trowel on a moistened surface
Application temperaturenot below +5 °C (mortar and substrate; in cold weather — warm water not above +35 °C)
Curingmoist curing for 3 days: wet with water every 3–4 h starting immediately after setting; protect from direct sun, rapid drying, draughts, temperature fluctuations and rain
Key propertiesrepair mortar class R3 (GOST R 56378-2015); compressive strength after 7 days at least 15 MPa, after 28 days at least 25 MPa (GOST 310.4); adhesion to concrete at least 2.0 MPa (GOST R 58277); watertightness at least W18 (GOST 12730.5); frost resistance at least F1 400 (GOST 10060); non-shrink (GOST 24544); maximum aggregate size 2.5 mm; chloride ions no more than 0.1 %; workability by cone spread 120–160 mm (GOST R 56378); workability retention at least 40 min; mortar density 2,100 kg/m³; working time 30–40 min
Shelf life12 months
StandardsTU 5745-009-54282519-2008; GOST R 56378-2015 (class R3); SGR KG.11.01.09.013.E.000511.02.22 of 15.02.2022

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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