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Canadian confidence

Five steel-free deck slabs have been built in Canada since 1995. The first was erected over the Salmon River, in Nova Scotia, as part of a new two-span simply supported bridge. One deck was built to a conventional reinforcement concrete design, while the other was steel-free, and 25mm thinner.

The bridge has now been through three winters and shows no sign of distress.

The contractor for the Salmon River bridge priced the steel-free deck about 6% higher than the conventional deck as it lacked experience in working with fibre reinforced concrete.

Since then, costs have come down as confidence has risen, and the steel- free solution has won competitive bids.

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