The Relationship between Concrete Strength and Classes of Resistance against Corrosion Induced by Carbonation: A Proposal for the Design of Extremely Durable Structures in Accordance with Eurocode 2

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Abstract
The new Eurocode 2 provides valuable information on the required concrete cover to protect reinforcement against corrosion induced by carbonation, for two design service life values of 50 and 100 years. However, to design structures with an even longer service life and assess existing ones, additional tools are necessary. The ‘square root of time’ relationship is a well-established method for estimating the penetration of the carbonation front, making it useful for long-term design and assessment purposes. In this article, we propose a new function that adjusts the evolution of the carbonation front to the Eurocode 2 values. This function is a powerful tool for designing extremely durable structures and assessing existing ones. To demonstrate its effectiveness, we provide two examples of its application.
Funding Information
  • European Union’s Framework Programme for Research and Innovation (821054, RTI2018-101841-B-C21, RTI2018-101841-B-C22)
  • Spanish government (Ministerio de Ciencia, Innovación y Universidades) (821054, RTI2018-101841-B-C21, RTI2018-101841-B-C22)

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