Chloride Transport in OPC Concrete Subjected to the Freeze and Thaw Damage

Title
Chloride Transport in OPC Concrete Subjected to the Freeze and Thaw Damage
Authors
안기용
Keywords
PERMEABILITY; CORROSION
Issue Date
2017-02
Publisher
HINDAWI PUBLISHING CORP
Citation
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, v. 2017, Article no. 8212856
Abstract
To predict the durability of a concrete structure under the coupling degradation consisting of the frosting and chloride attack, microstructural analysis of the concrete pore structure should be accompanied. In this study, the correlation between the pore structure and chloride migration for OPC concrete was evaluated at the different cement content in the concrete mix accounting for 300, 350, and400 kg/m (3) at 0.45 of a free water cement ratio. The influence of frosting damage on the rate of chloride transport was assessed by testing with concrete specimens subjected to a rapid freezing and thawing cyclic environment. As a result, it was found that chloride transport was accelerated by frost damage, which was more influential at the lower cement content. The microscopic examination of the pore structure showed that the freezing environment increased the volume of the large capillary pore in the concrete matrix.
URI
https://www.hindawi.com/journals/amse/2017/8212856/abs/http://repository.hanyang.ac.kr/handle/20.500.11754/71698
ISSN
1687-8434; 1687-8442
DOI
http://dx.doi.org/10.1155/2017/8212856
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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