A Study on Size Distribution of Oyster Shell According to the Change of Inverter Cutter Mill Speed

커터 밀 인버터의 속도변화에 따른 굴 패각의 입도분포에 관한 연구

Oyster shell is light weighted and its strength characteristic is similar to sand so we have reviewed to find its suitability of aggregate. Therefore we found fineness modulus and size distribution of oyster shell by grinding it with inverter cutter mill varying inverter speed and screening size. In our test, the fineness modulus has tendency of decrease in higher speed and tendency of increase in bigger diameter of screening size. 5~2.5mm, 2.5~1.2mm, 1.2~0.6mm, and below 0.6mm of oyster shell particle size could be used in further test for suitability of aggregate.