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The application of affine/interval algebra to determine the time of concrete cover damage in reinforced concrete due to corrosion

Krykowski Tomasz

Computer Assisted Methods in Engineering and Science

2020

Vol. 27, no. 4

265--284

This paper presents the application of affine numbers to determine the time of concrete cover cracking in reinforced concrete elements from the initiation of the reinforcementcorrosion. This issue is crucial for evaluating sustainability and durability of reinforcedconcrete structures. The proposed general approach has been used to forecast displacements and crack propagation versus time in reinforced concrete elements subjected tocorrosion tests. The affine approach equations describing changes caused by the formation of corrosion products are defined and the corresponding tensor of the volumetricstrain rate is formulated. The time of cover cracking has been analysed using the FiniteElement Method (FEM) and the Monte Carlo (MC) method to verify the correctness of calculations.