Steel Slag Aggregates Technology License Granted First to AM/NS India, Empowering Them to Transform Waste into Wealth in Road Construction
In a significant breakthrough for India's infrastructure development, environmental sustainability, and circular economy, ArcelorMittal Nippon Steel India (AM/NS India) has partnered with the Council of Scientific and Industrial Research (CSIR) - Central Road Research Institute (CRRI) to promote the adoption of steel slag road technology.
AM/NS India, a joint venture between ArcelorMittal and Nippon Steel, generates about 1.70 million tonnes of steel slag annually. With the recent license from CSIR-CRRI for steel slag valorisation technology, they have become the first company in India to process steel slag aggregates at their flagship plant in Hazira, Gujarat, for use in road construction.
This patented process converts steel slag, a major industrial byproduct, into high-quality road construction aggregates. The resulting steel slag roads are approximately 30-40% more cost-effective and last up to three times longer than conventional bitumen roads, providing superior strength suited to diverse environments such as coastal and rugged areas.
The world's first coastal steel slag road was inaugurated inside a private port at Hazira, and another steel slag road, the NH-53 diamond bourse in Surat, was developed using 'AM/NS Aakar', a specially designed slag produced by AM/NS India that meets CSIR-CRRI's technical guidelines, specifications, and quality control measures.
The steel slag road technology aims to replace natural aggregates in road construction and reduce environmental degradation and natural resource strain. It alleviates environmental issues from unprocessed slag, such as road durability problems and pollution risks, and supports India’s net-zero and green construction goals.
The partnership supports the government’s ‘Waste to Wealth’ initiative by converting 1.7 million tonnes generated by AM/NS India alone into road material, reducing dependence on natural aggregates and promoting sustainable resource use and recycling.
The Ministry of Science & Technology and Ministry of Road Transport & Highways are collaborating to facilitate the large-scale utilisation of steel slag. This collaboration is a significant step towards India's net-zero goal and the circular economy, reinforcing AM/NS India's leadership in innovation.
The steel slag road technology represents a breakthrough innovation driving sustainable and economically viable road infrastructure in India while fostering circular economy practices and minimizing environmental impact. This initiative is expected to generate a market value of over $2 trillion and create close to 10 million jobs by 2050, as part of India's circular economy, which is projected to play a crucial role in the country's future development.
[1] ArcelorMittal Nippon Steel India and CSIR-CRRI Collaborate on Steel Slag Road Technology
[2] AM/NS India's Steel Slag Road Technology: A Sustainable Solution for Infrastructure Development
[3] Steel Slag Road Technology: A Game Changer for India's Infrastructure and Environment
[4] AM/NS India's Steel Slag Road Technology: A Step Towards Sustainable Infrastructure and Circular Economy
[1] ArcelorMittal Nippon Steel India, through its partnership with CSIR-CRRI, has innovated a steel slag road technology, a solution for infrastructure development that promotes environmental sustainability and aligns with the circular economy.
[2] Adopting AM/NS India's technology, the steel slag road offers a cost-effective and durable alternative to conventional bitumen roads, utilizing technology to drive economic growth and support India's transition towards green construction.
