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A Study on the Properties of Fire Endurance and Spalling of High Performance RC Column with the Finishing and Covering Material  

Han, Cheon-Goo (청주대 건축공학부)
Hwang, Yin-Seong (아세아시멘트(주) 연구개발팀)
Ji, Suk-Won (두산산업개발(주) 기술연구소)
Kim, Kyoung-Min (두산산업개발(주) RC연구개발팀)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.10, no.2, 2006 , pp. 143-152 More about this Journal
Abstract
High performance concrete(HPC) has been widely used in high-rise building. The HPC has several benefits including high strength, high fluidity and high durability. However, spalling is susceptible to occur in HPC and HPC also tends to be deteriorated in the side of fire resistance performance at fire. This paper investigated the spalling prevention of high performance RC column. Control concrete showed severe failure and a case of concrete with fire enduring spraying material exhibited more severe spalling failure than even control concrete. In addition, concrete with fire enduring paint reported the most favorable spalling resistance effect for preventing spall, compared with other concrete covered with finishing materials, such as fire enduring spraying material, gypsum board, marble board and fire enduring PC board. Meanwhile, concrete adding 0.1% of PP fiber demonstrated spalling resistance performance after 3hours load bearing test.
Keywords
High Performance Concrete; Spalling Resistance; Performance of Fire Endurance; Covering Material;
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