부순모래 콘크리트의 강도 특성에 관한 연구

A Study on the Strength Characteristics of Crushed Sand Concrete

An investigation for long-term strength characteristics of crushed sand concrete using crushed sands produced in Yang-san, Kim-hae and Jin-hae that can assume to respectively represent eastern, middle and western suburb of Busan was carried out. Cases were divided as variation of blend ratio of crushed sand (50, 60, 70, 80, 90, 100$\%$) and area. Compressive strength, unit weight and strain in age of 28, 60, 90, 180, 356 days were measured in each case. Compressive strength, unit weight and modulus of elasticity were increased as time goes by and they are expected to keep on increasing in long-term age as well.