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Attributes

betonagressiv
Bezieht sich auf Eigenschaften und Inhaltsstoffe des Wassers oder Bodens, die Beton und den gegebenenfalls darin enthaltenen Stahl angreifen.
2019-09-10T09:22:36.3600000Z
464362
https://www.termdat.bk.admin.ch/entry/464362
A. Becker / H. S. Müller, Betonbauwerke im Untergrund - Infrastruktur für die Zukunft, 2008, S. 31
Les teneurs [dans les eaux] en sulfates supérieures à 600 mg SO42-/l sont considérées comme fortement agressives pour le béton, celles supérieures à 3000 mg SO4 2-/l comme très fortement agressives.
The limits of the design sulphate classes based upon 2:1 water/soil extract tests on soil have been reduced to bring sulphate classifications based on 2:1 water/soil extract tests and on groundwater into parity. This will result in some sites being rated as more aggressive to concrete than hitherto.
EXP: betonagressiv sind Ph-Werte < 6,5 sowie kalklösende Kohlensäure, Ammoniumsalze, Magnesiumchlorid, Sulfat und Säuregrad > 200
EXP: alcune sostanze presenti nei terreni e nelle acque o loro caratteristiche (p. es. ammonio, magnesio, pH acido < 6,5, anidride carbonica libera in eccesso, solfati) possono determinare il degrado del calcestruzzo nelle strutture idrauliche ed in quelle parzialmente o completamente interrate a causa di reazioni chimiche che esse stabiliscono con i costituenti della matrice cementizia; tali sostanze e le acque stesse vengono così dette "aggressive"
nach A. Becker / H. S. Müller, Betonbauwerke im Untergrund - Infrastruktur für die Zukunft, 2008, S. 31
secondo Università degli Studi di Bergamo, Facoltà di ingegneria / Prof. L. Coppola, La durabilità del calcestruzzo - aggressione chimica, pag. 18 ([Internet, 2019-02-22](http://www00.unibg.it/dati/corsi/20057/33204-Lezione%2024%20-%20durabilit%C3%A0%20aggressione%20chimica.pdf))
nach A. Becker / H. S. Müller, Betonbauwerke im Untergrund - Infrastruktur für die Zukunft, 2008, S. 31 und Wikipedia, "Betonagressivität" ([Internet, 2019-02-18](https://de.wikipedia.org/wiki/Betonaggressivit%C3%A4t))
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