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Categoria WoS
Titulo: Experimental evaluation of expansive behavior or an old-aged ASR-affected dam concrete: methodology and application
Tipo: revista nacional
Fecha: 1,2008
Revista: Materials and Structures
JCR Journal; Impact Factor: 0.892
Citas ISI: 4 Citas Scopus: 1 Citas Google Scholar: 3
Volumen: vol 41
Paginas: 173-188
ISSN: 1359-5997
Editorial: Springer
Paises Bajos


Availability of computational power calls for the responsible use of mechanical models that faithfully represent material behavior even in complex cases, as is concrete undergoing Alkali–Silica Reaction (ASR) expansion. In this paper, a series of tests aimed towards obtaining meaningful data for mechanical characterization of an existing, old-aged, ASR-affected dam concrete are presented. These tests, consisting mainly in long-term measurement of free and confined expansions of core-drilled specimens extracted from different locations in the dam, are designed to provide data for a material model. A specific methodology is developed and applied, including procedures for test design, mechanical loading and data acquisition in harsh environmental non-laboratory conditions. Conclusions about the possibility of ASR-expansion mitigation through confinement are drawn from experimental data.

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