An Experimental Study on the Development of Non-Compacting Concrete Using Viscosity Agent and Fly-ash

증점제 및 플라이애쉬를 이요한 다짐불요 콘크리트의 개발에 관한 실험적 연구

The objective of this study is to develop the Non-compacting concrete with mormal strength in practice by using viscosity agent and flyash. In this paper, we present the reference data about not only the properties of Non-compacting concrete at fresh state such as flowability, segregation-resistibility, placebility and so on but, optimum mixing design using viscosity agent and flyash. The test results indicate that optimum dosage of viscosity agent in combination of flyash in 50% of W/C is about 400g/$\textrm{m}^3$ with 20% of the ratio of flyash replacement.