Corro concrete K 45

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Product description

Fescon Corro Concrete K45 is a cement concrete for sites requiring tight concrete surfaces resistant to wear and corrosive substances. The maximum grain size is either 3.0 mm or 10.0 mm. 

  • Easy to use
  • Frost-resistant
  • Good workability characteristics


  • Foundations and foundation bases
  • Floors in industrial halls
  • In acid soil
  • Agricultural production building
  • Concrete structure repairs and casting
  • Jointing of prefabricated concrete elements
  • Jointing of natural stones
The product is listed in the portal for building products that can be used in Nordic Swan Ecolabelled buildings.
GTIN code Product name Product number Package size
6416841530264 CORRO CONCRETE K 45 3 MM 25 KG 53026 25 kg
6416841330260 CORRO CONCRETE K 45 3 MM 1000 KG 33026 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 three to five 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. The finished concrete remains workable for around one hour.


Mould and reinforcement work is done according to the normal working methods and the instructions of the designers.


Casting work is done according to the normal working methods, the instructions of the designers and official regulations.

After treatment

You must care for the fresh casting by spraying with water and by protecting it with a plastic film that prevents excessive evaporation of moisture. The need for aftercare depends on the conditions. It should continue for at least two days.

Storage and handling of waste
See the separate storage and disposal instructions

Material usage

90 kg/m2 with a 50 mm layer thickness

Water requirement 3 mm 2.5-3.0 l/25 kg (available in 25 kg and 1000 kg bags), 10 mm 92-112 ml/kg (available in 1000 kg bags)
Finished compound 12 - 13 l / 25 kg bag
Type powder
Colour gray
Maximum grain size

3 mm or 10 mm

Package size 25 kg and 1000 kg

storage time in a dry location approx. 1 year

Lowest usage temperature


Workability time 1 h
Strength class C 35/45
Strength development

1 day approx.10 MPa, 7 days approx. 40 MPa, 28 days approx. 50 MPa

Reaction to fire A1
Exposure class XF 4, XC 4, XS 2, XD 3 (50 years) XF 3, XC 4, XS 2, XD 3 (100 years)
Limitation of liability, product use notes and restrictions: Please familiarize yourself with Fescon Oy's general terms of delivery and the design and work instructions related to the product.