Alkali silica reaction in basaltic rocks NBRI method

Autor:	Pedro Maiza, Oscar R. Batic, Jorge D. Sota
Rok vydání:	1994
Předmět:	Basalt chemistry.chemical_compound Montmorillonite Aggregate (composite) chemistry Mineralogy Alkali–silica reaction General Materials Science Building and Construction Test method Zeolite Clay minerals Alkali–aggregate reaction
Zdroj:	Cement and Concrete Research. 24:1317-1326
ISSN:	0008-8846
DOI:	10.1016/0008-8846(94)90117-1
Popis:	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 behavior of this kind of rock applying the test method proposed by van Aardt and Visser (NBRI). 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 disseminated in the mass of the basalt.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ee3da428f4a4bb8b3fd699875306303d https://doi.org/10.1016/0008-8846(94)90117-1 Zobrazit plný text záznamu