Materia | |
Service life prediction models of concrete structures subjected to the initiation of reinforcing steel corrosion by chloride ions: contribution to the state of the art through systematic literature review – Part 1 | |
article | |
Rayane Campos Lopes1 Andrielli Morais de Oliveira1 Oswaldo Cascudo1 | |
[1] Universidade Federal de Goiás | |
关键词: Concrete structure; Predictive models; Service life; Reinforcement corrosion; Initiation by chlorides; Systematic Literature Review; | |
DOI : 10.1590/1517-7076-RMAT-2022-44821 | |
学科分类:工程和技术(综合) | |
来源: Universidade Federal do Rio de Janeiro * Coordenacao dos Programas de Pos-Graduacao de Engenharia | |
【 摘 要 】
Modeling the penetration of aggressive agents in concrete can improve the quality of projects and contribute to an optimized specification of concrete, thus contributing to the behavioral predictability of the structure, an aspect that is very important to ensure adequate service conditions during use, operation and maintenance of concrete structures. Contributing to the fulfillment of service life, minimizing maintenance costs and risks to users, is the role of this type of study, which collaborates with the design of durable structures, based on performance, focusing on the control of chloride-induced reinforcement corrosion. There are several predictive models of service life on a world scale, but they are presented in a diffuse and heterogeneous way, which makes their understanding and consequent application difficult. The present work contributes, then, by carrying out a Systematic Literature Review (SLR) with the objective of identifying the main models used worldwide, considering an approach that goes up to the step of initiation of chloride-induced corrosion. The research was carried out in four databases, namely: Engineering Village, Science Direct, Scopus and Web of Science. After exclusion at different stages (title, abstract, search for complete articles and reading), 50 publications remained, in which a bibliometric survey was carried out with different information (authors, institutions, countries and keywords). It was observed that most of the predictive models identified are based on chloride diffusion, according to Fick’s Second Law, with or without modifications by Crank’s solution. The most cited predictive models were Fick’s Second Law and Life-365, as a way of predicting the time to initiate the corrosion and, consequently, the service life of concrete structures.
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
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RO202307080000931ZK.pdf | 2530KB | download |