Concrete Mix Design for Service Life of RC Structures under Carbonation Using Genetic Algorithm
Joint Authors
Kwon, Seung-Jun
Lee, Byung Jae
Kim, Yun Yong
Source
Advances in Materials Science and Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-02-18
Country of Publication
Egypt
No. of Pages
13
Abstract EN
Steel corrosion in reinforced concrete (RC) structure is such a critical problem to structural safety that many researches have been performed for maintaining required performance during intended service life.
This paper is for a numerical technique for obtaining optimum concrete mix proportions through genetic algorithm (GA) for RC structures under carbonation which is considered as a serious deterioration in underground sites and big cities.
For this study, mix proportions and CO2 diffusion coefficients are analyzed through the previous studies, and then the fitness function of CO2 diffusion coefficient is derived through regression analysis.
The fitness function from 69 test results includes 5 variables of mix proportions such as w/c (water to cement) ratio, cement content, sand content percentage, coarse aggregate content, and R.H.
(relative humidity).
Through GA technique, simulated mix proportions are obtained for 12 cases of verification and they show reasonable results with average relative error of 4.6%.
Assuming intended service life and design parameters, intended CO2 diffusion coefficients and cement contents are determined and then related mix proportions are simulated.
The proposed technique can provide initial concrete mix proportions which satisfy service life under carbonation.
American Psychological Association (APA)
Kwon, Seung-Jun& Lee, Byung Jae& Kim, Yun Yong. 2014. Concrete Mix Design for Service Life of RC Structures under Carbonation Using Genetic Algorithm. Advances in Materials Science and Engineering،Vol. 2014, no. 2014, pp.1-13.
https://search.emarefa.net/detail/BIM-1015769
Modern Language Association (MLA)
Kwon, Seung-Jun…[et al.]. Concrete Mix Design for Service Life of RC Structures under Carbonation Using Genetic Algorithm. Advances in Materials Science and Engineering No. 2014 (2014), pp.1-13.
https://search.emarefa.net/detail/BIM-1015769
American Medical Association (AMA)
Kwon, Seung-Jun& Lee, Byung Jae& Kim, Yun Yong. Concrete Mix Design for Service Life of RC Structures under Carbonation Using Genetic Algorithm. Advances in Materials Science and Engineering. 2014. Vol. 2014, no. 2014, pp.1-13.
https://search.emarefa.net/detail/BIM-1015769
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1015769