BRO Uses Eco-Friendly Steel Slag For Road Construction
Introduction
Steel slag, a by-product of steel making, is produced during the separation of the molten steel from impurities in steelmaking furnaces. This process generates slag as a molten liquid melt and is a complex solution of silicates and oxides that solidifies upon cooling. Significant quantities of steel slag are generated every day from steel industries. Therefore, slags can become one of the promising materials in various applications such as in the transportation industry, construction, cement production, waste water and water treatment. With proper processing, steel slag can be re-used in road construction as an aggregate material.
Under the Honorable Prime Minister’s initiative of conversion of Waste to Wealth, the technology for modification of steel slag for use as aggregate for bituminous construction work has been developed by Central Road Research Institute-Council of Scientific and Industrial Research (CRRI-CSIR). Border Roads Organisation took the initiative for its trial/validation on Joram Koloriang Road stretch in Yazali district, Arunachal Pradesh, in different terrains and climatic conditions in collaboration with CRRI, New Delhi.
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Published on:
10 March 2023
Published in: NBM&CW March 2023
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