A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
In Argentina there are large quarries of basaltic rocks that are used as concrete aggregate. Some structures, made with basalts from the quarries in the Northwest, have shown signs of Alkali Silica Reaction (ASR). This paper presents the results of the behaviour of this kind of rock applying the test method proposed by van Aardt and Visser (NBR). The products of the reaction originated in the test are also studied using the optical microscope. Zeolites are the principal material observed. Results indicate that the principal material involved in the ASR is montmorillonite (or smectite) that is dissiminated in the mass of the basalt.
In Argentina there are large quarries of basaltic rocks that are used as concrete aggregate. Some structures, made with basalts from the quarries in the Northwest, have shown signs of Alkali Silica Reaction (ASR). This paper presents the results of the behaviour of this kind of rock applying the test method proposed by van Aardt and Visser (NBR). The products of the reaction originated in the test are also studied using the optical microscope. Zeolites are the principal material observed. Results indicate that the principal material involved in the ASR is montmorillonite (or smectite) that is dissiminated in the mass of the basalt.
Alkali silica reaction in basaltic rocks - NBRI method
Zur Alkalisilicareaktion in Basaltgestein mittels NbRI-Methode
Cement and Concrete Research ; 24 ; 1317-1326
1994
10 Seiten, 10 Bilder, 1 Tabelle, 11 Quellen
Article (Journal)
English
Oberflächenreaktion , Argentinien , Beton , Herstellung , Mineral , Pore , Flüssigkeit , Korngrenze , Röntgenbeugung , Rissbildung , Mikroskop , Basalt , Agglomerieren , Petrographie , Olivin , Feldspat , Montmorillonit , Smektit , Alkali-Silica-Reaktion , Zeolith
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