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Gidrobeton KRIO-2 — thixotropic repair mortar for work in frost
Kalmatron

Gidrobeton KRIO-2 — thixotropic repair mortar for work in frost

Thixotropic repair mortars

Repair of concrete, reinforced concrete, brick and stone structures at sub-zero air temperatures, down to −10 °C, is carried out with Gidrobeton KRIO-2. Before work the substrate is warmed and saturated with hot water, the dry mix is kept in a warm room, and the placed mortar is covered with film and insulation for one day. The thixotropic non-shrink mortar with fibre reaches at least 30 MPa in compression after 1 day and 45 MPa at 28 days; bond to concrete is 2.0 MPa.

Specifications

ManufacturerKalmatron — OOO “Kalmatron-SPb”, Saint Petersburg
Typethixotropic repair mortars
Useindustrial buildings, tanks and treatment plants
Basedry mix: special binders, mineral aggregate up to 0.63 mm, a complex of patented chemically active reagents, polypropylene fibre; thixotropic, rapid-hardening, non-shrink mix for work at sub-zero temperatures
Colourgrey (free-flowing grey powder)
Application methodrepair of concrete, reinforced concrete, brick and stone structures, strengthening, restoring the protective cover, waterproofing at sub-zero temperatures; 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; at air temperatures from -10 to +5 °C warm the substrate and saturate it with hot water; water 110–140 ml per 1 kg (2.75–3.5 l per 25 kg), mixing with a construction mixer for 3–5 min; adding water after the second mixing is prohibited; store the dry mix in a warm room until use; by hand with a trowel, spatula or mason’s trowel on a moistened surface
Application temperaturedown to -10 °C (air); mortar and substrate not below +5 °C (warm water not above +35 °C)
Curingprotect from mechanical damage; cover with polyethylene film and thermal insulation materials for one day
Key propertiescompressive strength after 1 day at least 30 MPa, after 7 days at least 40 MPa, after 28 days at least 45 MPa (GOST 310.4); flexural strength at 28 days at least 5.0 MPa; 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 0.63 mm; chloride ions no more than 0.1 %; workability by cone spread 120–150 mm (GOST R 56378); workability retention 20 min; mortar density 2,100 kg/m³; working time 20–30 min
Shelf life6 months
StandardsTU 5745-009-54282519-2008

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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