Development of Porous-Type Seaweed Bed Block Made of Steel-Slag andNatural Pozzolan

珊瑚礁（Isoyake）已经成为世界各地日益严重的问题。作为资源化技术的一部分，本文利用钢渣和天然火山灰等废弃资源制备了多孔型钢渣混凝土（POSSC）原型，并对其力学性能和供铁能力进行了研究。从而获得了有关POSSC力学性能的基本知识。此外，还证实了POSSC在人工海水中的长期洗脱。这表明，POSSC有潜力，以促进恢复从Isoyake在沿海地区。

Isoyake (coralline flat) has been a growing problem around theworld. As a part of the recovering techniques, a prototype of POSSC (Porous-typeSteel-making Slag Concrete) utilizing unused resources such as steel slag and naturalpozzolan is manufactured, and its mechanical properties and iron-supply ability areinvestigated in this study. As a result, fundamental knowledge about the mechanicalproperties of the POSSC is obtained. In addition a long-term elution of iron from thePOSSC in the artificial seawater is confirmed. It is suggested that the POSSC has apotential to contribute to the recovery from the Isoyake in coastal areas.