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Titulo: Experimental evaluation of expensive behavior of an old-aged ASR-affected dam concrete methodology and application
Tipo: revista internacional
Fecha: 2,2007
Revista: Materials and Structures
JCR Journal; Impact Factor: 0.509
Volumen: 41
Paginas: 173-188
ISSN: 1359-5997
Editorial: Springer Netherlands
Bagneuz (France)


Availability of computacional power calls for the responsible use of mechanical models that faithtfully represent material behavior even in complex cases, as is concrete undergoing Alkali-Silica Reaction (ASR) expasion. 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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