Abstract
To reveal the global picture and emerging evolution trends with sufficiently large literature data of RC structure’s service life prediction, especially the time to corrosion initiation, the scientometric analysis on the corresponding evolution trends was performed by using visualization software CiteSpace and VOSviewer in this paper. First, the application of CiteSpace and VOSviewer and retrieval strategy for data collection were described. And then, information visualization analysis was carried out based on the papers related to RC structure’s service life evaluation from publications number evolution, journal distribution, and authors’ contribution. Finally, document cocitation network, cooccurring keywords network, and timeline view of keywords network were conducted to discuss the research hotspots on time to corrosion initiation evaluation of reinforcement. Research results reveal that the number of publications on RC structure’s service life evaluation reached its peak in 2011. Besides, Structural Safety is the journal that makes the most significant contributions, and Professor Li CQ is the author with the most contribution score. Moreover, the knowledge body of the time to corrosion initiation prediction consists of six clusters; the high-citation articles in this field mainly focus on the multiple-parameters model and probabilistic reliability method.
Highlights
Reinforced concrete (RC) structure is the most common and widely used structural form in the world
The degradation of RC structures due to chloride penetration has been a major problem for construction engineering. e penetration of chloride ions through concrete cover to steel reinforcement resulting in the corrosion of reinforcing steel is a threat to RC structures, those exposed to marine environments [4,5,6]. erefore, the service life evaluation of RC structures under chloride environments has become an important research topic of concrete durability in the latest decades [7,8,9,10]. e durability research of RC structures exposed to the chloride environment can be divided into three aspects, including durability design of new structures [11,12,13], durability evaluation[7, 13], and residual service life prediction of existing structures [14, 15]
Main categories: environmental science (4.02%), physics and astronomy (3.35%), energy (2.56%), mathematics (2.46%), computer science (2.01%), social sciences (2.01%), and chemical engineering (1.56%). us, it can be concluded that engineering and materials science are the main categories of service life prediction of RC structures in the chloride environment, indicating that service life prediction of RC structures is mainly investigated from the perspectives of engineering and materials
Summary
Reinforced concrete (RC) structure is the most common and widely used structural form in the world. Erefore, the service life evaluation of RC structures under chloride environments has become an important research topic of concrete durability in the latest decades [7,8,9,10]. E durability research of RC structures exposed to the chloride environment can be divided into three aspects, including durability design of new structures [11,12,13], durability evaluation[7, 13], and residual service life prediction of existing structures [14, 15]. Probabilistic service life prediction of RC structures based on the stochastic analysis of chloride diffusivity has gained importance [7, 13] by calculating the structural reliability according to the corresponding limit state functions. A knowledge network analysis is conducted on time to corrosion initiation of reinforcement
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