Abstract
More than 90% of steel products used in Japan are recovered as obsolete scrap, and more than 40 million tons of steelmaking materials, about 40% of total steelmaking materials consumed in Japan, are provided by steel scrap. Because of its ease of separation and melting over other materials, steel is a material that is extremely suitable for recycling use.
Meanwhile, steel is extensively used for frames, envelopes and other building components and thus is a major structural material alongside wood and concrete.
This paper describes how steel can contribute to the construction of sustainable buildings through maximum use of its excellent performance—recyclability.
