The Diamond City of India, Surat, has become the first in India to get a road that is made out of steel waste.
Built by Arcelor Mittal Nippon Steel India with CSIR India (Council of Scientific and Industrial Research) & CRRI (Central Road Research Institute) along with the government think tank NITI Aayog, the steel slag road is a stellar example of sustainable development. Often considered as a waste material, steel slag has been a problem area for the steel industry.
Laid in the Hazira Industrial Area, the road consists of 100% processed steel slag. The 6-lane 1-kilometre long road is an experimental project that may solve the waste material issue. Slag is a by-product of smelting ores and used metals.
The disposal of metallurgical and metal-processing waste in landfills is particularly hazardous for the environment. Processed steel slag aggregate exhibits great potential as a replacement for natural construction material.The thickness of the road has been reduced by 30%.