The knowledge of valuable secondary raw materials

摘要

"Let your actions keep pace with your knowledge," says a Chinese proverb. This also applies to efficient and sustainable management. It is true that iron slag, a byproduct from the steel industry, has been making an important contribution to the circular economy and resource conservation for decades. However, misleading or missing information repeatedly ensures that the secondary raw material and the quality-tested building materials and fertilizers made from it are given lower priority. Examples are tenders that only allow primary raw materials or recycled materials, or confusion with ashes. For this reason, the FEhS-Institute for Building Materials Research has published the brochure "FAQ Ferrous Metallurgical Slag". It gives an overview of composition, properties, use and environmental aspects. Literature references and a glossary round off the publication, which is aimed primarily at experts and decision-makers in politics, administration, authorities and companies.