충전재 종류에 따른 포장용 포러스 폴리머 콘크리트의 강도 및 투수 특성
strengths and Permeability Properties of Porous Polymer Concrete for Pavement with Different Fillers
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참고문헌
초록
본 연구는 불포화 폴리에스터수지와 충전재로 산업부산물인 플라이 애시, 고로슬래그 미분말 및 바텀 애시를 활용한 포장용 포러스 폴리머 콘크리트를 개발하고, 충전재의 종류에 따른 포러스 폴리머 콘크리트의 물리, 역학적 특성을 구명한 것으로 다음과 같은 결론이 도출되었다.
Abstract
Recently, concrete has been made porous and used for sound absorption, water permeation, vegetation and water purification according to void characteristics. Many studies are carried out on the utilization sewage sludge, fly ash and waste concrete to reduce the environmental load. This study was performed to evaluate the void, strength, relationship between void and strength, permeability and chemical resistance properties of porous polymer concrete for pavement with different fillers. An unsaturated polyester resin was used as a binder, crushed stone and natural sand were used as an aggregate and bottom ash, fly ash and blast furnace slag were used as fillers. The mix proportions were determined to satisfy the requirement for the permeability coefficient, 1×10-2㎝/s for general permeable cement concrete pavement in Korea. The void ratios of porous polymer concrete with fillers were in the range of 18~23%. The compressive strength and flexural load of porous polymer concrete with fillers were in the range of 19~22MPa and 18~24KN, respectively. The permeability coefficients of porous polymer concrete with fillers were in the range of 5.5 ×10-1~9.7×10-2cm/s. At the sulfuric acid resistance, the weight reduction ratios of porous polymer concrete immersed during 8-week in 5% H2SO4 were in the range of 1.08~3.56%.
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