Cristin-resultat-ID: 1274014
Sist endret: 24. september 2015, 21:41
Resultat
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2007

Long-Term Chloride Intrusion in Field-Exposed Concrete with and without Silica Fume.

Bidragsytere:
  • Ola Skjølsvold og
  • Harald Justnes

Bok

SP-242 9th Canmet/ACI Fly Ash Conference
ISBN:
  • 9780870312359

Utgiver

American Concrete Institute
NVI-nivå 1

Om resultatet

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Publiseringsår: 2007
Hefte: 242
Sider: 199 - 210
ISBN:
  • 9780870312359

Importkilder

SINTEF AS-ID: S5398

Beskrivelse Beskrivelse

Tittel

Long-Term Chloride Intrusion in Field-Exposed Concrete with and without Silica Fume.

Sammendrag

Ten reinforced concrete blocks (1.5 x 1.5 x 0.5 m) were cast during the autumn of 1982 and exposed in the tidal zone in the Trondheim fjord in March 1983. The blocks were made of concrete with two different strength grades and with 0, 10 and 20 % silica fume addition. The blocks have been subject to several investigations during the years, especially with respect to chloride intrusion. The last examination was executed at approximately 21 years of exposure. The results indicate that the activity factor of silica fume regarding resistance against chloride intrusion is in the same order as for compressive strength (approximately 3). The chloride diffusion coefficients have been calculated for several exposure periods. This makes a calculation of the aging effect, and long term development of the effective chloride diffusion coefficient, possible. The concrete was composed according to the common practice in Norway in the early 1980s, and the concrete proportions are therefore hardly relevant to day. The effect from addition of silica fume with respect to durability and chloride intrusion for well documented, long term field exposed concrete is however considered very valuable.

Bidragsytere

Ola Skjølsvold

  • Tilknyttet:
    Forfatter
    ved Arkitektur, byggematerialer og konstruksjoner ved SINTEF AS

Harald Justnes

  • Tilknyttet:
    Forfatter
    ved Arkitektur, byggematerialer og konstruksjoner ved SINTEF AS
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Resultatet er en del av Resultatet er en del av

SP-242 9th Canmet/ACI Fly Ash Conference.

2007, American Concrete Institute. Vitenskapelig antologi/Konferanseserie
1 - 1 av 1