{"id":371745,"date":"2026-09-14T16:42:06","date_gmt":"2026-09-14T11:12:06","guid":{"rendered":"https:\/\/forumias.com\/blog\/?p=371745"},"modified":"2026-09-14T16:42:06","modified_gmt":"2026-09-14T11:12:06","slug":"steel-slag-road-technology","status":"publish","type":"post","link":"https:\/\/forumias.com\/blog\/steel-slag-road-technology\/","title":{"rendered":"Steel Slag Road Technology"},"content":{"rendered":"<div class=\"content-box-green\">\n<p><strong>News:<\/strong> India has set the Guinness World Record with World\u2019s Longest Steel Slag Road at Raigarh in Chhattisgarh.<\/p>\n<\/div>\n<h2 class=\"red-h2-box\">About Steel Slag Road Technology<\/h2>\n<figure id=\"attachment_371746\" aria-describedby=\"caption-attachment-371746\" style=\"width: 291px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-371746\" src=\"https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2026\/09\/Source-CSIR.jpg?resize=291%2C300&#038;ssl=1\" alt=\"Steel Slag Road Technology\" width=\"291\" height=\"300\" srcset=\"https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2026\/09\/Source-CSIR.jpg?resize=291%2C300&amp;ssl=1 291w, https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2026\/09\/Source-CSIR.jpg?w=490&amp;ssl=1 490w\" sizes=\"auto, (max-width: 291px) 100vw, 291px\" \/><figcaption id=\"caption-attachment-371746\" class=\"wp-caption-text\">Source &#8211; CSIR<\/figcaption><\/figure>\n<ul>\n<li><strong>Steel slag<\/strong> is a <strong>waste by-product<\/strong> of the <strong>steel manufacturing process<\/strong>.<\/li>\n<li>It is produced during the <strong>separation of the molten steel from impurities in steel-making furnaces.<\/strong><\/li>\n<li>The slag <strong>occurs as a molten liquid melt<\/strong> and is a <strong>complex solution of silicates and oxides<\/strong> that <strong>solidifies upon cooling<\/strong>.<\/li>\n<li><strong>Use in road materials:<\/strong> It <strong>cannot automatically<\/strong> be <strong>used as road material<\/strong> in its <strong>untreated form<\/strong>.\n<ul>\n<li><strong>Processing<\/strong> converts suitable <strong>slag into aggregates of specified sizes<\/strong> and <strong>engineering properties<\/strong>.<\/li>\n<li>These <strong>aggregates<\/strong> can then <strong>replace natural stone<\/strong> in appropriate road layers when supported by suitable pavement design, testing and quality control.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Advantages:<\/strong>\n<ul>\n<li><strong>Steel Slag Road Technology<\/strong> can <strong>reduce road construction costs<\/strong> by around <strong>40 per cent<\/strong> while delivering <strong>four times the strength<\/strong> of conventional roads.<\/li>\n<li><b>Environment friendly:<\/b> India is the world\u2019s second largest steel producer. For per ton of steel production around 200 kg Steel slag is generated as solid waste.\n<ul>\n<li>Steel slag generation in the country is about 19 Million tons per annum and expected to reach 60 million tons by 2030.<\/li>\n<li>This huge quantity of steel slag is piled up in and around the steel plants as big mounds and becoming the source of air, water, and land pollution.<\/li>\n<li>Hence, the use of steel slag in road construction is an environmentally friendly cost-effective method.<\/li>\n<\/ul>\n<\/li>\n<li><b>Cheaper: <\/b>Steel slag road costs are <strong>about 30% cheaper<\/strong> than conventional making of roads.<\/li>\n<li><b>Less Maintenance cost: <\/b>Steel slag roads have been found to <strong>last ten years as compared to three to four years<\/strong> for bitumen roads, thus bringing down sharply the maintenance costs.<\/li>\n<li><b>More durable: <\/b>Steel slag roads are <strong>more durable and resistant<\/strong> to weather unpredictability.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<table style=\"width: 100%; border-collapse: collapse; border-style: solid;\">\n<tbody>\n<tr>\n<td style=\"width: 100%;\">\n<h2 class=\"yellow-h2-box\" style=\"text-align: center;\">Notable Uses of Steel Slag Road<\/h2>\n<ul>\n<li>In <strong>2022, Surat<\/strong> in Gujarat became the <strong>first city in the country<\/strong> to get a <strong>processed steel slag (industrial waste) road<\/strong>.<\/li>\n<li>The <strong>Border Roads Organisation (BRO)<\/strong> has also <strong>used steel slag<\/strong> to construct a <strong>long-lasting heavy-duty road at Arunachal Pradesh<\/strong> along the <strong>India-China border area<\/strong>.<\/li>\n<li>A <strong>1.85-km road<\/strong> at <strong>Jindal Steel\u2019s Raigarh facility in Chhattisgarh<\/strong> has been recognised as the <strong>world\u2019s longest road built<\/strong> with processed steel-slag aggregates in 2026.<\/li>\n<li><strong>CSIR- Central Road Research Institute (CRRI), New Delhi<\/strong> has <strong>pioneered<\/strong> the development of use of Steel slag in road construction.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>News: India has set the Guinness World Record with World\u2019s Longest Steel Slag Road at Raigarh in Chhattisgarh. About Steel Slag Road Technology Steel slag is a waste by-product of the steel manufacturing process. It is produced during the separation of the molten steel from impurities in steel-making furnaces. The slag occurs as a molten&hellip; <a class=\"more-link\" href=\"https:\/\/forumias.com\/blog\/steel-slag-road-technology\/\">Continue reading <span class=\"screen-reader-text\">Steel Slag Road Technology<\/span><\/a><\/p>\n","protected":false},"author":10393,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[1566,3127,1738,12039],"tags":[11872],"class_list":["post-371745","post","type-post","status-publish","format-standard","hentry","category-daily-factly-articles","category-economy","category-science-and-technology-daily-factly-articles","category-knolls","tag-9pm-daily-factly","entry"],"jetpack_featured_media_url":"","views":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/371745","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/users\/10393"}],"replies":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/comments?post=371745"}],"version-history":[{"count":0,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/371745\/revisions"}],"wp:attachment":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media?parent=371745"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/categories?post=371745"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/tags?post=371745"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}