Frost resistance of F-concrete

Erkki Vesikari

Research output: Book/ReportReport

Abstract

Freeze-thaw tests and frost-salt tests were carried out for evaluating the frost resistance of F-concrete. Porosity and microstructural studies were included in the lest programme. The frost resistance and frost-salt resistance of F-concrete are good whenever the water-cement ratio is smaller than or equal to 0.4. The air content appears to have virtually no influence on the frost resistance or frost-salt resistance of F-concrcte. In the frost-salt test, however, rapid primary scaling takes place and increases concomitantly with the age of concrete. This phenomenon is probably related to carbonation at the surface of test specimens. Inner cracking of F-concrete is probably due to hydration shrinkage. Cracking, however, does not have a clearly detrimental effect on the frost resistance of F-concrete.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages38
ISBN (Print)951-38-2832-8
Publication statusPublished - 1987
MoE publication typeD4 Published development or research report or study

Publication series

SeriesValtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports
Number474
ISSN0358-5077

Fingerprint

Frost resistance
Concretes
Salts
Carbonation
Hydration
Cements
Porosity
Air
Water

Keywords

  • frost resistance
  • F-concrete
  • concrete durability
  • freezing test
  • salts
  • evaluating
  • porosity
  • microstructure
  • test programs
  • cracking

Cite this

Vesikari, E. (1987). Frost resistance of F-concrete. Espoo: VTT Technical Research Centre of Finland. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, No. 474
Vesikari, Erkki. / Frost resistance of F-concrete. Espoo : VTT Technical Research Centre of Finland, 1987. 38 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 474).
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Vesikari, E 1987, Frost resistance of F-concrete. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, no. 474, VTT Technical Research Centre of Finland, Espoo.

Frost resistance of F-concrete. / Vesikari, Erkki.

Espoo : VTT Technical Research Centre of Finland, 1987. 38 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 474).

Research output: Book/ReportReport

TY - BOOK

T1 - Frost resistance of F-concrete

AU - Vesikari, Erkki

PY - 1987

Y1 - 1987

N2 - Freeze-thaw tests and frost-salt tests were carried out for evaluating the frost resistance of F-concrete. Porosity and microstructural studies were included in the lest programme. The frost resistance and frost-salt resistance of F-concrete are good whenever the water-cement ratio is smaller than or equal to 0.4. The air content appears to have virtually no influence on the frost resistance or frost-salt resistance of F-concrcte. In the frost-salt test, however, rapid primary scaling takes place and increases concomitantly with the age of concrete. This phenomenon is probably related to carbonation at the surface of test specimens. Inner cracking of F-concrete is probably due to hydration shrinkage. Cracking, however, does not have a clearly detrimental effect on the frost resistance of F-concrete.

AB - Freeze-thaw tests and frost-salt tests were carried out for evaluating the frost resistance of F-concrete. Porosity and microstructural studies were included in the lest programme. The frost resistance and frost-salt resistance of F-concrete are good whenever the water-cement ratio is smaller than or equal to 0.4. The air content appears to have virtually no influence on the frost resistance or frost-salt resistance of F-concrcte. In the frost-salt test, however, rapid primary scaling takes place and increases concomitantly with the age of concrete. This phenomenon is probably related to carbonation at the surface of test specimens. Inner cracking of F-concrete is probably due to hydration shrinkage. Cracking, however, does not have a clearly detrimental effect on the frost resistance of F-concrete.

KW - frost resistance

KW - F-concrete

KW - concrete durability

KW - freezing test

KW - salts

KW - evaluating

KW - porosity

KW - microstructure

KW - test programs

KW - cracking

M3 - Report

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T3 - Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports

BT - Frost resistance of F-concrete

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Vesikari E. Frost resistance of F-concrete. Espoo: VTT Technical Research Centre of Finland, 1987. 38 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 474).