{"id":1588,"date":"2018-10-10T12:11:30","date_gmt":"2018-10-10T12:11:30","guid":{"rendered":"https:\/\/aboutfoundry.com\/?p=1588"},"modified":"2026-08-27T14:55:43","modified_gmt":"2026-08-27T14:55:43","slug":"slag","status":"publish","type":"post","link":"https:\/\/aboutfoundry.com\/en\/slag\/","title":{"rendered":"Slag"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Slag consists of oxidic materials which are largely insoluble in molten metals, and<br \/>\ninstead separate from them to form a separate layer on top of the molten metal.<br \/>\nA distinction is made between basic and acidic slag.\n<\/p>\n<h2>Function and reuse<\/h2>\n<p>Slag has a lower density than the metal, which is why it forms a separate layer on top of it; the slag layer also insulates the melt thermally and shields it from atmospheric oxygen<sup><a href=\"#q1\">[1]<\/a><\/sup>. Processed metallurgical slag is widely reused as a secondary raw material, for example as ground granulated blast-furnace slag in cement production or as aggregate in road construction<sup><a href=\"#q1\">[1]<\/a><\/sup>.<\/p>\n<h2>References<\/h2>\n<ol class=\"quellen\">\n<li id=\"q1\">Emergency reference (secondary source): Wikipedia: <a href=\"https:\/\/en.wikipedia.org\/wiki\/Slag\" rel=\"noopener\" target=\"_blank\">Slag<\/a>. Retrieved 27 Aug 2026.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Slag consists of oxidic materials which are largely insoluble in molten metals, and instead separate from them to form a separate layer on top of the molten metal. A distinction is made between basic and acidic slag. Function and reuse Slag has a lower density than the metal, which is why it forms a separate &hellip; <a href=\"https:\/\/aboutfoundry.com\/en\/slag\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Slag<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[2,2],"tags":[],"class_list":["post-1588","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":{"adresse":"","telefon":"","e-mail":"","webseite":""},"_links":{"self":[{"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/posts\/1588","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/comments?post=1588"}],"version-history":[{"count":5,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/posts\/1588\/revisions"}],"predecessor-version":[{"id":5968,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/posts\/1588\/revisions\/5968"}],"wp:attachment":[{"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/media?parent=1588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/categories?post=1588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/tags?post=1588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}