### Analysis of carbonation behavior in concrete using neural ...

Jan 01, 2010 The conclusions on the analysis technique for carbonation behavior in concrete using neural network algorithm and carbonation modeling are as follows. 1) CO 2 diffusion coefficients are estimated through neural network algorithm with 3 components in OPC mixture design and relative humidity as neurons. For 12 data set of diffusion coefficients ...

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In this paper, a numerical technique for carbonation behavior using neural network algorithm and carbonation modeling is developed. To obtain the comparable data set of CO 2 diffusion coefficient, experimental results which were performed previously are analyzed. Mix design components such as cement content, water to cement ratio, and volume of ...

Get price### Analysis of Carbonation Behavior in Concrete Using Neural ...

Analysis of Carbonation Behavior in Concrete Using Neural Network Algorithm and Carbonation Modeling. Carbonation on concrete structures in underground sites or metropolitan cities is one of the major causes of steel corrosion in RC (Reinforced Concrete) structures.

Get price### Analysis of carbonation behavior in concrete using neural ...

Abstract Carbonation on concrete structures in underground sites or metropolitan cities is one of the major causes of steel corrosion in RC (Reinforced Concrete) structures. For quantitative evaluation of carbonation, physico-chemo modeling for reaction with dissolved CO 2 and hydrates is necessary. Amount of hydrates and CO 2 diffusion coefficient play an important role in evaluation of ...

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Request PDF Analysis of carbonation behavior in concrete using neural network algorithm and carbonation modeling Carbonation on concrete structures in underground sites or

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Song, H. W. (2010), “ Analysis of carbonation be havior in concrete using neural network algorithm and carbonation modeling” , Cement and Concrete Research 40, pp. 119 – 127.

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Jan 10, 2021 1. Introduction. Corrosion is the main pathological manifestation in reinforced concrete structures and has great influence on the composite material behavior throughout its lifespan , .The carbon dioxide (CO 2) diffusion in concrete, a process denominated carbonation, is the main cause of reinforcement depassivation of concrete elements in urban environments .

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Song, H. W. (2010), “ Analysis of carbonation be havior in concrete using neural network algorithm and carbonation modeling” , Cement and Concrete Research 40, pp. 119 – 127.

Get price### EVALUATION OF THE BEHAVIOR OF CONCRETE CONSTITUENTS

Goal: Determining the behavior of each factors that control carbonation in concrete using artificial neural networks. The result will be compared with existing literature.

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Concrete carbonation is considered an important problem in both the Civil Engineering and Materials Science fields. Over time, the properties of concrete change because of the interaction between the material and the environment and, consequently, its durability is affected. Conventionally, concrete carbonation depth at a given time under steady-state conditions can reasonably be estimated ...

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Oct 30, 2020 A potential solution is the application of an artificial neural network algorithm, which simulates the human nervous system, to evaluate concrete carbonation. In this study, the possibility of applying machine learning to predict concrete carbonation behavior is evaluated.

Get price### (PDF) A Study on Change in Cement Mortar Characteristics ...

Analysis of carbonation behavior in concrete using neural network algorithm and carbonation modeling January 2010 Cement and Concrete Research Seung-Jun Kwon

Get price### Predicting Carbonation Depth of Prestressed Concrete under ...

Two artificial neural networks (ANN), back-propagation neural network (BPNN) and the radial basis function neural network (RBFNN), are proposed to predict the carbonation depth of prestressed concrete. In order to generate the training and testing data for the ANNs, an accelerated carbonation experiment was carried out, and the influence of stress level of concrete on carbonation process was ...

Get price### Seung-Jun Kwon - Google Scholar

Analysis of carbonation behavior in concrete using neural network algorithm and carbonation modeling. SJ Kwon, HW Song. Cement and Concrete Research 40 (1), 119-127, 2010. 110: 2010: Service life prediction of concrete structures under marine

Get price### Analysis Technique for Chloride Behavior Using Apparent ...

Analysis Technique for Chloride Behavior Using Apparent Diffusion Coefficient of Chloride Ion from Neural Network Algorithm ... Kwon, S. J. and Song, H. W., "Analysis of Carbonation Behavior in Concrete Using Neural Network Algorithm and Carbonation Modeling," Cement and Concrete Research, Vol. 40, No. 1, 2010, pp. 119-127. ...

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Jul 14, 2020 Kwon SJ, Song HW (2010) Mechanism of carbonation behavior in concrete using neural network algorithm and carbonation modeling. Cem Concr Res 40:119–127 Google Scholar Lazarevska M, Knezevic M, Cvetkovska M (2014) Application of artificial neural network in

Get price### The Influence of the Water/Cement Ratio in the Open ...

In this study involving cementitious matrix composites, the influence of the water/cement (w/c) ratio variation (0.48, 0.60, 0.70 and 0.75) was analyzed in its open pore structure and in the carbonation front advancing. Test specimens were molded in cylindrical dimensions of (5x10) cm and (2x4) cm for each mix proportions, and subjected into accelerated carbonation tests, at controlled ...

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Get price### (PDF) Parametric analysis of carbonation process in ...

Song, H. W. (2010), “ Analysis of carbonation be havior in concrete using neural network algorithm and carbonation modeling” , Cement and Concrete Research 40, pp. 119 – 127.

Get price### Concrete Carbonation Analysis using Neural Network ...

Carbonation on concrete structures is one of the major causes of deterioration in concrete structures. For quantitative evaluation of carbonation, a physico-chemo modeling for reaction with dissolved CO2 and hydrates is needed. Even the amount of hydrates and CO2 diffusivity coefficient are very important to evaluate behavior of carbonation, it is limited to obtain a various CO2 diffusivity ...

Get price### (PDF) A Study on Change in Cement Mortar Characteristics ...

Analysis of carbonation behavior in concrete using neural network algorithm and carbonation modeling January 2010 Cement and Concrete Research Seung-Jun Kwon

Get price### Analysis of training parameters in the ANN learning ...

Jun 05, 2019 We propose an artificial neural network (ANN) model to predict the CO2 diffusion through the concrete to determine the carbonation depth over time, analyzing the influence of some training algorithm and the network architecture in the ANN learning process. A reliable experimental test database of the non-accelerated test with 278 results of concrete carbonation depth was created from the ...

Get price### Carbonation of Concrete Research Papers - Academia

The use of some additions as cement replacement has played an important role in the amount of clinker reduction. Due to its huge worldwide availability one of the most important and recognised replace agent is the fly ash, but is also estimated that only 30 to 40% of fly ash is used, although there are some challenges to be overcome, such as the reactive potential quantification.

Get price### [PDF] Simplified Carbonation Model Considering Ca(OH)2 ...

Carbonation is one of the most critical deterioration phenomena to concrete structures exposed to high concentration, sheltered from rain. Lots of researches have been performed on evaluation of carbonation depth and changes in hydrate compositions, however carbonation modeling is limitedly carried out due to complicated carbonic reaction and diffusion coefficient.

Get price### Evaluation Technique of Chloride Penetration Using ...

S. Kwon and H. Song, “Analysis of carbonation behavior in concrete using neural network algorithm and carbonation modeling,” Cement and Concrete Research, vol. 40, no. 1, pp. 119–127, 2010. View at: Publisher Site Google Scholar

Get price### Analysis of the Mechanical Behaviour of Asphalt Concretes ...

The current paper deals with the numerical prediction of the mechanical response of asphalt concretes for road pavements, using artificial neural networks (ANNs). The asphalt concrete mixes considered in this study have been prepared with a diabase aggregate skeleton and two different types of bitumen, namely, a conventional bituminous binder and a polymer-modified one.

Get price### Effect of W/C Ratio on Durability and Porosity in Cement ...

Apr 15, 2014 For deterioration analysis considering porosity changes, many researches have been carried out for chloride diffusion mechanism [1, 12, 13] and carbonation behavior [2, 4, 14, 15]. ... “Analysis of carbonation behavior in concrete using neural network algorithm and carbonation modeling,” Cement and Concrete Research, ...

Get price### Análisis paramétrico de la carbonatación en estructuras de ...

The results obtained in the parametric analysis, besides adding knowledge to the building pathology area, reinforce concepts already known in the literature, demonstrating the efficiency of ANNs in the investigation of concrete carbonation. ... Kwon, S. J., Song, H. W. (2010), “Analysis of carbonation behavior in concrete using neural network ...

Get price### The Influence of the Water/Cement Ratio in the Open ...

In this study involving cementitious matrix composites, the influence of the water/cement (w/c) ratio variation (0.48, 0.60, 0.70 and 0.75) was analyzed in its open pore structure and in the carbonation front advancing. Test specimens were molded in cylindrical dimensions of (5x10) cm and (2x4) cm for each mix proportions, and subjected into accelerated carbonation tests, at controlled ...

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DeepDyve is the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Get price### Effects of carbonation on micro structures of hardened ...

Feb 03, 2016 In order to investigate the effects of carbonation on the microstructure of cement concrete, the carbonation depth and microstructure of cement paste with 0.3, 0.4 and 0.5 water/cement ratio after 7, 14, 21 and 28 d accelerated carbonation were studied respectively. The results showed that with the increase of waterto- cement ratio and carbonation age, the carbonation depth was

Get price### Carbonation Modeling Analysis On Carbonation

equation to be solved in numerical analysis of the carbonation phenomenon (Ishida et al. 2007). In the new model, relationship is proposed for the temperature dependent diffusivities of carbon dioxide in water and in air, based on values in the literature (CRC 2005). 1. Introduction . Carbonation of concrete is a phenomenon that

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