Click for next page ( 52

The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement

Below are the first 10 and last 10 pages of uncorrected machine-read text (when available) of this chapter, followed by the top 30 algorithmically extracted key phrases from the chapter as a whole.
Intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text on the opening pages of each chapter. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.

Do not use for reproduction, copying, pasting, or reading; exclusively for search engines.

OCR for page 51
41 Responses to the survey questionnaire are summarized in tables and graphs on the following pages. Some of the responses contain long website addresses. This report is available in PDF format from the NCHRP website. The addresses in the PDF version may be used as direct links or cut and pasted into a web browser. 2. USAGE 1. Has your agency installed waterproofing membranes on concrete bridge decks since 1994? Yes: 34 agencies No: 19 agencies 2. How many of these installations were on new concrete bridge decks or existing concrete bridge decks? New bridge decks: Answers ranged from 4 to over 500. Existing bridge decks: Answers ranged from 1 to over 500. 3. Does your agency continue to specify the use of waterproofing membranes for new concrete bridge decks? Yes: 20 agencies No: 14 agencies 4. Does your agency continue to specify the use of waterproofing membranes for existing concrete bridge decks? Yes: 27 agencies No: 7 agencies 5. Is your agency's use of waterproofing membranes? Increasing: 3 agencies Decreasing: 7 agencies About the same: 24 agencies 3. PRODUCTS 6. Please list the commercial names and company names of waterproofing membrane systems used since 1994. Please indicate if they were used on new bridge decks, existing bridge decks, or both, if any of these were experimental, and how long they lasted. The following information was determined from the product names and the manufacturer's description. Preformed Liquid Agency Self- Adhesive Heat Applied Spray Applied Hot USA AK X -- -- -- ID X* -- -- -- IL X -- X -- KS X* -- -- -- MO -- -- X -- NE X X -- -- NJ X -- X -- OK X* -- -- -- OR X -- X -- PA X* -- -- -- UT -- -- X -- Table continued on p.42