Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Accelerated Expansion Test: UK
ThisExpansionUK test method determines the variability of long term dimensional changes in sets of mature concrete cores as they take up moisture by capillary absorption. The dimensional changes are initially due to normal swelling (shrinkage recovery) of concrete from measured increased moisture availability. The moisture then leads to the slow swelling of any pre-existing gel from AAR and, in the longer term, to further AAR reaction with swelling of its gel. The swelling due to AAR is a measure of the “free residual expansionResidual expansion potential” which can arise in the cored concrete at a rate depending on the in-situ moisture and the temperature. The “free” expansion will be modified in the structure by the effects of stress and reinforcement restrain acting in three distinct directions.
Accelerated Expansion Test: UK
ThisExpansionUK test method determines the variability of long term dimensional changes in sets of mature concrete cores as they take up moisture by capillary absorption. The dimensional changes are initially due to normal swelling (shrinkage recovery) of concrete from measured increased moisture availability. The moisture then leads to the slow swelling of any pre-existing gel from AAR and, in the longer term, to further AAR reaction with swelling of its gel. The swelling due to AAR is a measure of the “free residual expansionResidual expansion potential” which can arise in the cored concrete at a rate depending on the in-situ moisture and the temperature. The “free” expansion will be modified in the structure by the effects of stress and reinforcement restrain acting in three distinct directions.
Accelerated Expansion Test: UK
RILEM State Art Reports
Saouma, Victor E. (Herausgeber:in) / Wood, Jonathan (Autor:in)
22.09.2020
16 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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