폐플라스틱을 이용한 일반 및 초고성능 콘크리트의 물리적 성능, 화재특성 및 경제성 검토

Abstract

If waste plastic generated in the ocean can be used as a construction material, it will be very economically and environmentally advantageous worldwide. The physical characteristics, environmental characteristics, and economic analysis of general and ultra-high performance concrete using waste plastics were reviewed to compare and analyze whether existing fine aggregates could be replaced. Two types of polymer powder with components similar to waste plastic and two types of lightweight aggregates were additionally compared and analyzed, and the components of waste plastic were confirmed through chemical analysis. Various compositions were tested by varying the replacement rate of fine aggregates and the water cement ratio, and an experiment was conducted to confirm the physical performance according to various compositions. Economic efficiency and environmental characteristics were analyzed based on the equivalent strength durability design. An experiment was conducted to reduce the weight of ultra-high performance concrete by mixing waste plastic, an experiment was also conducted to be used as a repair material, and a PC panel was designed to be used as a member material. This study can be used as basic data for research to use waste plastic as a substitute for fine aggregates.