An Experimental study on the Manufacture and Mechanical Properties of concrete Utilizing Fly Ash and Crushed Sand

플라이애쉬와 부순모래를 이용한 콘크리트의 제조 및 역학적 특성에 관한 실험적 연구

The results of an experimental study on manufacture and mechanical properties of concrete utilizing crushed sand and fly ash for construction materials are presented in theis paper. As the results show, the workability, compressive strength and freezing-thaw resistance were improved by proper contents of fly ash, replaced crushed sand, and air entraining agent. And the drying shinkage was decreased by proper contents of those. Also, the suitable weight contents of replacing ratio of crushed sand and weight ratio fly ash in concrete using crushed sand were in range of 30% and 15% respectively.