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The extraction and characterization of pore water in durability studies of concrete reinforcement using electrochemical techniques
Abstract
The pore water of hydrated cementitious composites can provide much information on aspects related to its composition or hydration. Also, its correct extraction and characterization can allow realizing adequate durability studies associated to the composite or the metallic reinforcement, which can allow the saving of resources and time with good results. The extraction of pore water does not have a standard procedure, but it must be performed with specific care, and its composition consists mainly of sodium, potassium and calcium hydroxides, which guarantees its high pH. Considering that pore water is present inside the hydrated cementitious composite and in direct contact with the reinforcement, it is important in the study of the specific medium and directly influences it. In this context, the present article presents a brief review on aspects related to pore water (its extraction and characterization), so as its application in studies of the reinforcement corrosion through electrochemical techniques, since such methodologies are relatively easy to execute and their results are very close to the reality of reinforcements embedded in concrete.
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DOI: https://doi.org/10.18256/2358-6508.2020.v7i1.3359
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Copyright (c) 2020 Renan Esposito Vieira, Marina Martins Mennucci, Valdecir Angelo Quarcioni, Hercílio Gomes de Melo
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ISSN 2358-6508
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