The Examination Fire Resistance of Mortar According to Particle Size Distrivution as Oyster Shell Fine Aggregate

굴 패각의 잔골재 입도분포 변화에 따른 모르타르의 내화성 검토

The oyster shell is lightweight and exhibits strength characteristics similar to sand. In this study, mortar specimens were fabricated by crushing them and processed to 5mm or less of the fine aggregate standard, and examined the fire resistance of the mortar according to changes in particle size distribution. In this experiment, seven particle size distribution conditions were tested. In addition, the mixing ratio was fixed at 1: 3, and the experiment was conducted in terms of the volume ratio because the densities of sand and oyster shells were different.