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Gidrobeton-Podvodny — flowable mortar for repairing structures under water
Kalmatron

Gidrobeton-Podvodny — flowable mortar for repairing structures under water

Flowable repair mortars

Gidrobeton-Podvodny is intended for structures located under water and in the zone of variable water level: port structures, bridge piers, hydraulic engineering facilities. The flowable mix with aggregate up to 10 mm and polypropylene fibre is fed by gravity or by mortar pump through a hose into the lower part of sealed formwork, where it displaces the water without being washed out. The manufacturer states a compressive strength of at least 45.0 MPa at 28 days, watertightness W18 and high resistance to sea water.

Specifications

ManufacturerKalmatron — OOO “Kalmatron-SPb”, Saint Petersburg
Typeflowable repair mortars
Usehydraulic structures and dams, bridges and overpasses, tanks and treatment plants
Basedry mix: special cement, modifying chemical admixtures, aggregates up to 10 mm, polypropylene fibre, a complex of patented chemically active reagents; flowable mix resistant to washout by water
Colourgrey (free-flowing grey powder)
Application methodrepair of concrete, reinforced concrete, brick and stone structures under water and in the zone of variable water level, port structures (river and sea), bridge piers in water, hydraulic structures, increasing load-bearing capacity; clean the substrate of loose concrete, silt, dirt, oils and cement laitance; the formwork must be impermeable and sealed, if necessary with a fitting and valve at the bottom for feeding the mix; water 240–260 ml per 1 kg (6.0–6.5 l per 25 kg), the exact amount — according to the quality certificate of the batch; mixing with a mixer for 3–5 min, 3–5 min pause, remixing; feeding by gravity or by mortar pump through a hose into the lower part of the volume being filled, the mix displaces the water; continuous pouring; adding water during pouring is prohibited
Application temperaturenot below 0 °C (in cold weather — warm water not above +35 °C)
Curingformwork removal no earlier than 5 days after the end of pouring
Key propertiescompressive strength after 7 days at least 30.0 MPa, after 28 days at least 45.0 MPa (GOST 310.4); flexural strength at 28 days at least 8.0 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 11052); high resistance to sea water; maximum aggregate size 10 mm; chloride ions no more than 0.1 %; workability by cone spread 220–280 mm (GOST R 58277); workability retention at least 30 min (GOST R 56378); mortar density 2,200 kg/m³; working time 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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