Modelling of the mechanical behavior of concrete affected by alkali-aggregate reaction

Alkali-Aggregate Reaction (AAR) is a major cause of chemical damage in concrete structures, especially those exposed to moisture, leading to cracking, excessive strains and stress formation. This work presents the results of a numerical study where the mechanical behaviour of AAR attained structures...

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Published in:Rem: Revista Escola de Minas 2013-03, Vol.66 (1), p.35-40
Main Authors: Ferreira, Anna Paula Guida, Farage, Michèle Cristina Resende, Barbosa, Flávio de Souza
Format: Article
Language:English
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ENGINEERING, CIVIL
METALLURGY & METALLURGICAL ENGINEERING
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description Alkali-Aggregate Reaction (AAR) is a major cause of chemical damage in concrete structures, especially those exposed to moisture, leading to cracking, excessive strains and stress formation. This work presents the results of a numerical study where the mechanical behaviour of AAR attained structures is simulated under the assumption of coupling between confinement stresses and the reaction. A Reação Álcali-Agregado (RAA) é uma das principais causas de danos químicos em estruturas de concreto, especialmente aquelas expostas à umidade, levando à fissuração, às deformações excessivas e ao aparecimento de tensões. Esse trabalho apresenta os resultados de um estudo numérico através do qual o comportamento mecânico de estruturas atingidas pela RAA é simulado sob a hipótese do acoplamento entre as tensões de confinamento e a reação.
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title Modelling of the mechanical behavior of concrete affected by alkali-aggregate reaction
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