Union Steel Minister inaugurated a six-lane highway in Surat made of steel slag -- a first in India.
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The road constructed using 100 per cent steel-processed slag is a real example of converting "waste into wealth" and improving sustainability of steel plants.
The road has been jointly made by Central Road Research Institute (CRRI) -- a laboratory of Council of Scientific and Industrial Research (CSIR) and ArcelorMittal Nippon Steel (AMNS) India.
Slag is a by-product which comes out during manufacturing of steel through three processes, namely basic oxygen furnace (BOF) route, electric arc furnace (EAF) and induction furnace (IF).
This is a breakthrough for the industry as far as utilisation of slag is concerned. Slag was being used only for only landfilling.
Use of such material in road construction shall not only increase its durability but also help in reducing the cost of construction as slag-based materials have better properties than natural aggregates. The use of steel slag in road construction will also address the shortage of natural aggregates in the country.
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