Spalling Properties of High Strength RC Column in accordance with Various W/B and Fiber Types

물결합재비 및 섬유종류 변화에 따른 고강도 모의 구조체의 폭렬특성

This study provides the practical application of the concrete using fiber to protect from fire studied by previous research. The fluidity and air content is satisfied with the targets, and the compressive strength is over 60MPa on W/B 35% and 80MPa on W/B 20 and 25%. For the properties of the spalling after the fire test, there is no spalling or slight occurrence on the specimens. However, for the RC column, the covering concrete fall off caused by spalling occurrence. Based on the results, it is thought that the fiber content should be put into the safety factor to prevent spalling for the structures.