Strength and Fire Resistance Characteristics of Oyster Shell Aggregate with Increasing Mass Ratio

굴 패각 골재의 질량비 증가에 따른 강도 및 내화특성

Oyster packs generate about 150,000 tons a year. Various studies are under way to utilize this oyster shell. Ca is the main component of oyster shell and is used as a raw material of refractory board. Studies on application of refractory board using oyster shell are also continuing. It is expected that the refractory characteristics will be improved as the mass of oyster shell, that is Ca, increases. In this study, mortar specimens and board specimens were fabricated by increasing the mass ratio of oyster shells classified below 0.6mm, 1.2 ~ 0.6mm, 2.5 ~ 1.2mm and 5.0 ~ 2.5mm, and the strength and fire resistance characteristics were examined.