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India Losing Up to $100b p.a. to Corrosion
India Losing Up to $100b p.a. to Corrosion

India Losing Up to $100b p.a. to Corrosion

India Losing Up to $100b p.a. to Corrosion

India with a GDP of around $2 trillion loses as much as $100 billion every year on account of corrosion, which can be checked by using zinc to galvanize steel structures.

“India loses around 4-5% of gross domestic product annually on account of corrosion losses,” Hindustan Zinc Ltd CEO Sunil Duggal told PTI.

The West, ahead of India in terms of infrastructure, mandates use of zinc for galvanizing steel structures in bridges, highways, public utilities, metro stations and airports, among others, to make them long-lasting and robust, he added.

Citing examples of the Athens bridge in Pennsylvania and the Curtis Road bridge in Michigan (US), Duggal said structures utilizing galvanized steel rebars have much longer life span than the conventional ones.

Galvanized rebar can withstand chloride concentration at least four-five times higher than the black steel rebar and remains passivated at lower pH levels, substantially slowing the rate of corrosion, he noted.

Duggal said HZL in association with International Zinc Association is organizing a two-day international galvanizing conference in the national capital, which will have speakers from JSW Steel, Tata Steel, Maruti and Essar, among others.

The meet will deliberate on the potential zinc and steel market, role of zinc in infrastructure and its application in emerging sectors like automobiles, rail tracks as well as the galvanization of rebars to strengthen structures, particularly in coastal areas.

 

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