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Thermal Strain Properties of Normal and Clay-ash Light-weight Concrete with Loading Condition

하중조건에 따른 보통 및 Clay-ash계 경량골재 콘크리트의 열팽창변형

  • Received : 2012.02.02
  • Published : 2012.05.25

Abstract

In case of concrete, it should be deformed by many factors such as explosive spalling, thermal strain and creep at high temperature. structural fire design have been proposed to predict fire damage as national standard. It is general safer to use values obtained from tests of unstressed residual test in stead of stressed test. But most of thermal properties on concrete was conducted with normal aggregate. In this study, test was conducted to evaluate stressed effect concerning normal weight and light weight concrete of 60MPa. Our experimental procedure was based on RILEM recommendation. Loading level was 0, 20 and 40 percent of compressive strength at room temperature. And thermal strain properties of concrete was carried out by 100, 200, 300, 500 and $700^{\circ}C$. Also, results can be analyzed as compare thermal strain properties at elevated temperature with CEN and CEB code.

Keywords

Acknowledgement

Supported by : 한국연구재단

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