In order to build a pilot road stretch in Arunachal Pradesh that can survive torrential rain and unfavourable weather, the Border Road Organization (BRO) will use steel slag. If this is shown to be successful, building strong roadways in important places may become simpler. While the project would be a first for the BRO, a six-lane highway connecting the port with the city was recently opened in Surat, Gujarat. The roadway was built entirely out of processed steel slag. Satish Pandey, lead scientist at CRRI, claims that because steel slag has better material properties than conventional motorways, they are 30% less thick. Additionally, the processed steel slag road’s building costs are 30% less than those of conventional roads.
The Indian Railways has also sanctioned a significant research and development (R&D) project to Council of Scientific and Industrial Research (CSIR) and Central Road Research Institute (CRRI) to explore the use of steel slag aggregate as railway ballast for track construction and maintenance. Slag is a by-product of the steel manufacturing process, and NHAI will also use the steel slag for construction of a portion on Mumbai-Goa highway. In accordance with the International Civil Aviation Organization’s (ICAO) recommendations and necessary civil aviation standards, the Surat airport will additionally fortify its airstrip using steel slag (CAR).
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Construction, Infrastructure and Mining
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