Fine-grained repair and recovery mix for concrete
tech description PRR-223 Repair and reconstruction mixture for concrete fine-grained PRR-223 Radiation Test Report | PRR-223
- layer thickness 5-30 mm
- high strength (not less than 30 MPa)
- high adhesion to concrete (not less than 2.0 MPa)
- crack resistant
- frost resistant
- microfiber reinforced
- hydrophobic and vapor permeable
Packing: 25 kg
The PRR-223 mixture is intended for the comprehensive repair of concrete and reinforced concrete structures caused by prolonged use or destruction under the influence of mechanical loads and corrosion processes – monolithic structures, retaining walls, tanks, ramps, ramps, balconies, etc.
Effective for repairing chips, voids, sinks, bumps and other defects on the surface of reinforced concrete and concrete structures, the permissible layer thickness is from 5 to 30 mm.
! Do not use for repairing light concrete, cement-lime, cement-sand, gypsum and other weak surfaces.
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|Composition||a mixture of highly active cement with mineral aggregates, modifiers and reinforcing fibers|
|Appearance||homogeneous granular mixture of gray color without impurities|
|Mixing ratio||4.0-4.25 liters of water per 25 kg of dry mix|
|Aggregate size||no more than 1.25 mm|
|Mortar shelf life||not less than 30 minutes|
|The compressive strength after 3 days||not less than 6.0 MPa|
|The compressive strength after 28 days||not less than 30.0 MPa|
|Tensile strength in bending after 28 days||not less than 5.0 MPa|
|Frost resistance||not less than 75 cycles|
|Shrinkage||no more than 1,2 mm|
|Adhesion to the base after exposure to air-dry conditions||not less than 2.0 MPa|
|Dry mix consumption||about 20 kg / m² per 1 cm of layer thickness|
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