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Flexural Behavior of Reinforced Concrete Beams Exposed to Freeze-Thawing Environments  

Jang, Gwang-Soo (충남대학교 건축공학과 대학원)
Yun, Hyun-Do (충남대학교 건축공학과)
Kim, Sun-Woo (충남대학교 건축공학과 대학원)
Park, Wan-Shin (충남대학교 건설공학교육과)
Choi, Ki-Bong (경원대학교 건축학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.13, no.6, 2009 , pp. 126-134 More about this Journal
Abstract
Generally, reinforced concrete structures exposed to the outside temperature are affected by freezing and thawing process during winter and early spring. These freeze-thawing process can lead to the reduction in durability of concrete as cracking or surface spalling. This paper is to study the flexural behavior of RC beams exposed to freeze-thawing environments. To compare the difference in flexural behavior of RC Beams, limited tests were conducted under different types of Longitudinal steel ratio and freeze-thawing cycles. For this purpose, fourteen small-scale RC beams ($100mm{\times} 100mm {\times}600mm$) were strengthened in monotonic and cyclic loadings, subjected to up to 150, 300 cycles freeze-thawing from $-18{\sim}4^{\circ}C$. It is thought that experimental results will be used as basic data to evaluate flexural behavior of RC beams exposed to freeze-thawing.
Keywords
RC beams; flexural behavior; freeze-thawing; cylclic loading;
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