The objective of this synthesis study was to update NCHRP Synthesis of Highway Practice 220: Waterproofing membranes for concrete bridge decks, a report on the same topic published in 1995. This synthesis documents information on materials, specification requirements, design details, application methods, system performance, and costs of waterproofing membranes used on new and existing bridge decks since 1995. The synthesis focuses on North American practices with some information provided about systems used in Europe and Asia. Information used in this study was acquired through a review of the literature and surveys of state departments of transportation and Canadian provincial transportation agencies. For additional details, follow-up interviews were conducted with several agencies. (Author/publisher) This report is available online at http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_syn_425.pdf
Samenvatting