불량 인쇄회로기판을 가공하여 잔골재로 치환 활용하는 모르터의 특성에 관한 연구 ( A Fundamental Study on the Properties of Mortar Using the Defective Printed Circuit Board as Fine Aggregate )

Recently, the waste recycling has been emerging a very important subject for economic concerns as well as for the environmental protection. Substantial amounts of the printed circuit board scraps (abbreviated PCB), according to one estimate, amount to a million to two million ton per year in Korea. Current practice for this waste is shipment to waste land disposal facilities. This study is aimed to present the fundamental data for the possible use of the PCB scrap to fine aggregate. The fine aggregates were replaced 0, 3, 6, 9 percent by glass fiber from PCB scrap for measuring the compressive, tensile and bending strength of the hardened state and fresh state.