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Confirmation of frost resistance of concrete and concrete products from an accredited testing laboratory

According to the Finnish Concrete Code the frost resistance of concrete must be determined in an accredited testing laboratory. Testing is carried out according to testing instruction by 72 to determine the spacing factor of air voids in concrete.  

FCM specializes in the thin section technique and was the first testing laboratory in the concrete industry to receive accreditation (T208, SFS-EN ISO/IEC 17025). We have more than 20 years of  experience in testing concrete using thin section techniques.

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Betonin pakkasenkestävyys, riittävä lisähuokostus

Sufficient air-entrainment in facade concrete
Air content 4,1%
The spacing factor of protective air voids is 0,22 mm

Betonin pakkasenkestävyys, epäonnistunut lisähuokostus

Failed air-entrainment
Air content 3,8 %
Spacing factor of protective air voids is 0,53 mm