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The Times of India
The Times of India
World
TOI World Desk

Foundry Sand As Road Fill: Indiana test turns waste into embankment material; study notes limits

In 1996, an unusual road-building experiment in Indiana gave an industrial waste product a second life. Instead of landfilling used foundry sand, the Indiana Department of Transportation (INDOT) and Purdue University used it to build part of a highway embankment near Butler. The project covered a 275-metre section of the Country Road 37 highway project and was designed to test whether waste sand from a metal foundry could perform as a structural fill material.

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