Team News Riveting
Jamshedpur, March 23
Tata Steel has set a benchmark of sustainability by utilizing its slag-based aggregates in construction of National Highway (NH)-33.
Over 1.2 million tonnes of slag-based aggregates have been utilized in construction of the four-lane, 44.2 Km long stretch from Saherbera to Mahulia section of NH33 developed by National Highways Authority of India (NHAI).
This stretch of road, constructed using steel slag, was inaugurated by Minister of Road Transport and Highways (MoRTH), Nitin Gadkari today. On this occasion, Gadkari thanked Tata Steel for ensuring supplies of processed slag under this pioneering initiative.
Tata Steel had established the usage of processed Steel Slag aggregates in construction of National Highway in 2019 under technical collaboration with Central Road Research Institute (CRRI). Tata Steel is also actively engaged along with other Steel companies in the task force formed by Ministry of Steel for the Development of Design Guidelines and Specifications for Utilization of Steel Slag in Road construction.
In the endeavor to transform Steel Slag into sustainable aggregates, Tata Steel has set-up a state-of-the art accelerated weathering facility for processing of LD slag through steam ageing. A dedicated lab has been set-up to ensure Quality Assurance for the product. Tata Steel had launched India’s first branded LD slag products – Tata Aggreto and Tata Nirman. The use of slag based manufactured aggregates helps in the preservation of biodiversity by reducing the need for mining of natural aggregates and eliminates the requirement of transportation of aggregates across large distances.
About Tata Aggreto
Tata Aggreto is India’s first steel slag-based branded product, extensively used in the construction of national highways, which has helped in conserving natural aggregates and minimizing the environmental footprint.
Tata Aggreto is produced out of 0-65 mm processed LD slag with four different size ranges for convenience in design mix. Owing to its size and texture, it is suitable for use in bituminous and concrete road construction.
