Epoxy coated reinforcement in bridge decks

Some proposals are made for the use of epoxy coated reinforcement in United Kingdom bridge decks. These proposals are based mainly on an extensive review of North American work. A preliminary cost study is made. It is concluded that epoxy coating of the top steel in addition to current waterproofing practice would provide - at relatively little extra cost - additional assurance that the reinforcement would be adequately protected throughout the life of a bridge. The current design rules do not permit decks with permanently exposed concrete wearing surface without waterproofing. Epoxy coating may afford a means of introducing such decks which have certain advantages. However, it is concluded that further information is required before a positive recommendation to delete waterproofing can be made. (A)