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Erschienen in:
2024 | OriginalPaper | Buchkapitel
3. Materials and Methods
verfasst von : Fernando A. N. Silva, Rodrigo F. Roma, Mohamed K. Bourbatache, Mahfoud Tahlaiti, João M. P. Q. Delgado, António C. Azevedo
Erschienen in: Advanced Chemical and Creep Modeling for Alkali-Aggregate Reaction in Concrete
Verlag: Springer Nature Switzerland
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Abstract
In this chapter is presented an explanation of the models used to analyze the chemo-mechanical behavior on AAR-affected concrete. The first part is a presentation of the rheological scheme (Grimal et al. in Swelling concrete in dams and hydraulic structures: DSC 2017, 1st edn. ISTE Ltd., Wiley, 2017) that couples all the following models presented in this chapter. The second part is dedicated to describe the chemical model proposed by Morenon (Modélisation des reactions de gonflement interne des bétons avec prise en compte des couplages poro-mécaniques et chimiques. Université Toulouse 3 Paul Sabatier, France, p. 272, 2017) which shows how the advancement of the reaction creates a volume of gel, and such volume exerts an intrapore pressure in the solid skeleton. However, in order to calculate this gel pressure, the user needs the creep and shrinkage strains, and also the diffuse cracking produced by the gel (micro-plastic strains).