Corro shotcrete RKB

Product description

Fescon Corro Sotcrete is a non-sag, fibre-reinforced, special concrete used in the repair and coating of concrete structures. Maximum grain size 3.0 mm.


  • strength C 30/37
  • non-sag
  • pumpable
  • frost-resistant
  • SILKO-approved
  • fibre-reinforced
  • wet mixture method
  • easy to level


  • foundation wall coating and insulation plastering
  • finishing seams for natural stone foundation walls
  • increasing structural strength in load-bearing structures
  • increasing the safety distance of steels
  • repairs of bridges, water towers and pools
  • increasing the protective cover of foundation walls and balcony structures
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EAN code Product name Product number Package size
6416841530073 Corro shotcrete RKB 53007 25 kg
6416841330055 Corro shotcrete RKB 33005 1000 kg


Refer to the bag for how much water the concrete requires. Add the dry material to the water and mix with a concrete mixer for around ten minutes. With a power mixer, around one to three minutes of mixing is sufficient. Let the plaster stand for around five minutes and mix it again for a short while. Find the correct consistency at this stage by gradually adding the rest of the water. We do not recommend adding all of the water right at the start. You can also use a continuous mixer connected to a pump. The finished concrete remains workable for around one hour.

The base must be undamaged, clean, and damp enough to be darker in colour. If necessary, remove the weak-strength cement paste layer. Best adhesion can be achieved to a rough base. The base can also be an insulation board.

Apply the mass using a screw, piston or plaster pump. When adjusting the pump output, take the layer thickness and prevailing conditions into consideration. The concrete has the correct amount of water when the pumped mass does not run. Level the surface with a steel trowel. In foundation walls and expansive surfaces, the recommended layer thickness is 30-40 mm.Create thicker layers in several applications, allowing the lower layer to dry for one day before spreading the next layer. In hole patching, the depth of individual holes can be 80-100 mm. The lowest working temperature is +5°C.

Spray water on the surfaces for 2-5 days after casting depending on the conditions and the site.

Waste handling

Hardened product and empty, dry packages can be delivered to a landfill. A liquid product must be delivered to a hazardous waste reception point.

Technical information

Material usage

appr. 20 kg / 10 mm / m².

Water requirement 3.5-4.1 l/25 kg
Finished compound 12-13 l/25 kg
Type powder
Colour grey
Maximum grain size

3.0 mm

Package size 25 kg and 1000 kg

storage time in a dry location approx. 1 year

Lowest usage temperature

+ 5°C

Workability time approx. 1 h
Compressive strength

C 30/37

Adhesion strength

> 1.5 MPa

Fire class A1
Exposure class XC4, XF4, XS1, XD2 (50 years) XC4, XF3, XS1, XD2 (100 years)


Other links

The information is based on tests and practical experience. We cannot affect conditions at the work site so we cannot assume responsibility for the end result affected by local conditions.


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