Industry Update
Scrap tire research paves way for greener industry
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Soil, Groundwater & Air Studies ,Investigations Burlington ♦ St. Catharines -f Woodstock -f North Bay -f Kirkland Lake -f Timmins -f Thunder Bay-f Winnipeg Dr. George Duncan, President (705)567 4996 Fax:(705) 568 8368
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Associated Moncef Nehdi, a professor in the University of Western Ontario's Depart ment of Civil and Environmental Engi neering, recently received a grant to in vestigate new ways to use scrap tires in civil infrastructure. He is one ofjust ten researchers around the world to receive
the grant from the Lindbergh Founda tion, a non-profit organization based in Minnesota.
Nehdi has found that ground scrap tires can replace aggregates in concrete to make a more flexible construction material. The flexible concrete is more
resistant to impact and better at insulat ing heat and sound than traditional con crete, making it an ideal material for use in foundation pads for machinery,earth quake shock absorbers, heat and sound insulation,railway buffers and bunkers, tunnel linings, trench filling, and pipe bedding. Each year, more than 250 million scrap tires are generated in North America, adding to more than three bil lion scrap tires already stockpiled. Of ten left in illegal dumps, these tires are not only an environmental threat, but also fire hazards and breeding grounds for mosquitos. Dr. Nehdi also recently received $386,000 from the Canada Foundation
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Toronto (416) 497-8600 E-mail; Toronto@RVAnderson.com
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in Construction Materials at Western.
The Centre will lead research to develop new technology for stabilizing various wastes like mine tailings, paint, incinera tor ash, glass, water treatment sludge,
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cement kiln dust and tire rubber in non-
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hazardous, readily disposable forms, as well as design civil infrastructure that can
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use such waste materials to its benefit.
Contact Moncef Nehdi at:(519)6612III,ext. 88308.
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Environmental Science & Engineering, September 2001
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