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Bulgaria bridge beats Aberfeldy

Letters

I read the article on fibre reinforced polymer composites (NCE 28 March/4 April) with interest. My father and I conducted the research and successfully completed the design and construction of a fibre reinforced polymer road bridge 60km from Sofia, Bulgaria, in 1985, long before Aberfeldy in 1992.

The bridge was subjected to full highway loading according to Bulgarian standards, abnormal loading, as well as laboratory fatigue tests of more than 2M loading cycles. The bridge has been in continuous use since 1985.

I published an article on the Bulgarian bridge in the French magazine Composites in January 1993 where you can find more details.

Ivaylo Anguelov, 82 Mary Fisher Crescent, Dumbarton G82 1BF

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