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Neural Network Modeling of Corrosion Level of Rebar in Steel Fiber Reinforced Self-Compacting Concrete

2022 IEEE 14th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management (HNICEM)

(2022), pp. 1-5

Stephen John C. Clemente a , Bernardo A. Lejano b , Nolan C. Concha Jason a , Maximino C. Ongpeng b

a Civil Engineering Department, FEU Institute of Technology, Manila, Philippines

b Civil Engineering Department, De La Salle University Manila, Manila, Philippines

Abstract: Corrosion is one of the biggest problems of reinforced concrete structures prone to high chloride environments such as ports and harbors. Due to a lack of studies that can support the use of steel fiber reinforced self-compacting concrete, researchers are still in dispute regarding the effect of using steel fibers in chloride-rich environments. This paper explores the use of neural network modeling to precisely predict and further analyze this problem. Twenty-six different mixtures of steel fiber reinforced self-compacting concrete with varying amounts of cement, water-cement ratio, superplasticizer, and steel fiber were used to derive the feed forward back propagation neural network and compared to a derived non-linear model. The derived neural network model with fourteen hidden nodes and tansig as transfer function has an R-squared of 0.949 for the training. The comparison shows that ANN has superior predicting capability compared to non-linear modeling even with a limited number of data. Parametric analysis was performed and found that steel fiber shows improvement in the corrosion resistance of concrete for mixtures with low to moderate water-cement ratio and an opposite behavior for high water-cement ratio. This is due to the presence of voids formed around the surface of the steel fiber due to capillary action. These voids serve as highways for chloride ions.

Recommended APA Citation:

Clemente, S. J. C., Lejano, B. A., Jason, N. C. C., & Ongpeng, M. C. (2022). Neural Network Modeling of Corrosion Level of Rebar in Steel Fiber Reinforced Self-Compacting Concrete. 2022 IEEE 14th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management (HNICEM), 1-5. https://doi.org/10.1109/HNICEM57413.2022.10109365

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