Study of the effect of chloride diffusion coefficient in concrete using neural network models

Subject Areas : Analytical and Numerical Methods in Mechanical Design

Ali Delnavaz ^{1 *} , ali osat akbari moghaddam ²

1 - Department of civil and surveying engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran
2 - Department of civil engineering, Qazvin branch, Islamic Azad University, Qazvin, Iran

Received: 2023-08-10 Accepted : 2023-10-15 Published : 2025-01-21

Keywords: neural network model, chloride diffusion coefficient ,

Abstract :

Chloride diffusion is one of the main causes of deterioration of concrete structures. Much research has been done to study the diffusion of chlorides in concrete, experimentally and theoretically. Since chloride diffusion experiments are time consuming, it is desired to develop a model to predict chloride profiles in concrete. This paper investigates the feasibility of using a neural network as an adaptive synthesizer as well as a predictor to meet such a requirement. Neural network models were therefore created to predict the chloride diffusion coefficient. The models were formed from the results of the chloride profile experiments. The input parameters were the water/binder ratios, the amount of silica fume and the environmental conditions of the samples. The output parameter was the chloride diffusion coefficient. Neural network models are multi-layer Perceptron models and differ in the number of layers and hidden neurons. To verify the accuracy of the model, an ANN model was created and the output of the model was compared with the test samples. The result shows that both neural network models have the ability to predict the chloride diffusion coefficient with good accuracy.

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