National Academies Press: OpenBook

Waterproofing Membranes for Concrete Bridge Decks (2012)

Chapter: APPENDIX A Survey Questionnaire

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Suggested Citation:"APPENDIX A Survey Questionnaire." National Academies of Sciences, Engineering, and Medicine. 2012. Waterproofing Membranes for Concrete Bridge Decks. Washington, DC: The National Academies Press. doi: 10.17226/14654.
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Suggested Citation:"APPENDIX A Survey Questionnaire." National Academies of Sciences, Engineering, and Medicine. 2012. Waterproofing Membranes for Concrete Bridge Decks. Washington, DC: The National Academies Press. doi: 10.17226/14654.
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Suggested Citation:"APPENDIX A Survey Questionnaire." National Academies of Sciences, Engineering, and Medicine. 2012. Waterproofing Membranes for Concrete Bridge Decks. Washington, DC: The National Academies Press. doi: 10.17226/14654.
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Suggested Citation:"APPENDIX A Survey Questionnaire." National Academies of Sciences, Engineering, and Medicine. 2012. Waterproofing Membranes for Concrete Bridge Decks. Washington, DC: The National Academies Press. doi: 10.17226/14654.
×
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Suggested Citation:"APPENDIX A Survey Questionnaire." National Academies of Sciences, Engineering, and Medicine. 2012. Waterproofing Membranes for Concrete Bridge Decks. Washington, DC: The National Academies Press. doi: 10.17226/14654.
×
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Suggested Citation:"APPENDIX A Survey Questionnaire." National Academies of Sciences, Engineering, and Medicine. 2012. Waterproofing Membranes for Concrete Bridge Decks. Washington, DC: The National Academies Press. doi: 10.17226/14654.
×
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Suggested Citation:"APPENDIX A Survey Questionnaire." National Academies of Sciences, Engineering, and Medicine. 2012. Waterproofing Membranes for Concrete Bridge Decks. Washington, DC: The National Academies Press. doi: 10.17226/14654.
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Page 39

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33 APPENDIX A Survey Questionnaire The following survey for this synthesis was mailed in January 2011 to 50 U.S. state highway agencies, the District of Columbia, and 13 provincial and territorial highway agencies in Canada to collect information about the use of waterproofing membranes on concrete bridge decks. A total of 51 responses were received, including 18 from agencies that have not used waterproofing membranes since 1994. Synthesis Survey Topic 42-07 Waterproofing Membranes for Concrete Bridge Decks 1. INTRODUCTION Dear Bridge Engineer: The Transportation Research Board (TRB) through its National Cooperative Highway Research Program (NCHRP) is preparing a syn- thesis on Waterproofing Membranes for Concrete Bridge Decks. This is being done under the sponsorship of the American Association of State Highway and Transportation Officials (AASHTO), in cooperation with the Federal Highway Administration (FHWA). The objective of this study is to compile and synthesize current practices, recent literature findings, and research-in-progress addressing the subject topic. The results of this study will be distributed through AASHTO, TRB, and FHWA in late 2011. This survey is being sent to U.S. state departments of transportation and Canadian provincial and territorial transportation agencies. If you are not the appropriate person at your agency to complete the survey, please forward it to the correct person. Please note that each section can be answered by a different person; however, only one person can work on the survey at a time (see questionnaire instructions below). Your agency’s response to the survey is extremely important to this study. If your agency has not installed waterproofing membranes since 1994, there are only two questions to answer. If your agency has installed membranes, there are questions related to design, construc- tion, inspection, maintenance, and research. Please complete and submit this survey by February 11, 2011. We estimate that it should take no more than 60 minutes to complete. If you have any questions, please do not hesitate to contact our principal investigator Henry Russell at henry@hgrconcrete.com or 847-998- 9137. Supporting materials can be uploaded directly into the questionnaire, or you may e-mail them directly to Henry Russell or provide him with the appropriate links. Thank you very much for contributing to this synthesis of highway practice. KEY DEFINITION: FOR THE PURPOSE OF THIS SURVEY, A WATERPROOFING MEMBRANE IS DEFINED AS A THIN IMPERMEABLE LAYER THAT IS USED IN CONJUNCTION WITH A HOT MIX ASPHALT WEARING SURFACE. Please enter the date (MM/DD/YYY). ____________________________________ Please enter your contact information. _____________________________________ First Name __________________________________________________________ Last Name __________________________________________________________ Title _______________________________________________________________ Agency/Organization _________________________________________________ Street Address _______________________________________________________ Suite _______________________________________________________________ City ________________________________________________________________

34 State _______________________________________________________________ Zip/Postal Code ______________________________________________________ Country ____________________________________________________________ E-mail Address ______________________________________________________ Phone Number _______________________________________________________ Fax Number _________________________________________________________ Mobile Phone ________________________________________________________ URL _______________________________________________________________ 2. USAGE 1. Has your agency installed waterproofing membranes on concrete bridge decks since 1994? ( ) Yes ( ) No. Click on Next Page at the bottom and it will take you to the final question and then submit survey. 2. How many of these installations were on new concrete bridge decks or existing concrete bridge decks? New concrete bridge decks (including replacement bridge decks on old beams) __________________________________ Existing concrete bridge decks __________________________________________ 3. Does your agency continue to specify the use of waterproofing membranes for new concrete bridge decks? ( ) Yes ( ) No 4. Does your agency continue to specify the use of waterproofing membranes for existing concrete bridge decks? ( ) Yes ( ) No 5. Is your agency’s use of waterproofing membranes? ( ) Increasing ( ) Decreasing ( ) About the same 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. (Note: If the level of detail requested is not available, please attach a link to your agency’s approved products list in the box provided in question #7.) 4. SPECIFICATIONS 7. Please provide any link(s) to document(s) describing the material and construction specifications for waterproofing membranes used by your agency (e.g., your agency’s approved products list). ___________________________________________________________________ ___________________________________________________________________

35 or upload as a file (up to 1MB per file). Additional files may be uploaded in Question 25 (e.g., you agencies approved products list). 5. CRITERIA 8. Does your agency have criteria for when waterproofing membranes are used? Yes No New Bridge Decks Existing Bridge Decks If the answer to either of the above is Yes, please provide the criteria. This information may be submitted in the box below as a written description or link(s) to document(s). ___________________________________________________________________ ___________________________________________________________________ or upload as a file (up to 1MB per file). Additional files may be uploaded in Question 25. 9. What are the expected service lives in years of the waterproofing membranes that your agency has used? 0 to 5 6 to 10 11 to 15 16 to 20 21 to 25 > 25 New Bridge Decks Existing Bridge Decks 10. What is the basis for the answers to the previous question? ___________________________________________________________________ ___________________________________________________________________ 11. Does your agency have specific reasons for selecting a particular membrane system? ( ) Yes. Go to Question 12. ( ) No. Click on Next Page at the bottom and it will take you to Question 13. 12. Please identify the reasons for selecting a particular membrane system. [ ] Cost [ ] Speed of installation [ ] Staged construction options [ ] Surface preparation [ ] Track record of previous installations [ ] Desired service life [ ] Availability [ ] Coordination requirements [ ] Product support [ ] Other If other, please describe briefly. ___________________________________________________________________ ___________________________________________________________________

36 6. DESIGN DETAILS 13. Does your agency have standard details for the following: Yes No Installing waterproofing membranes Terminating edges of membranes Curb details for membranes Concrete barrier details for use with membranes Over construction joints At expansion joints If the answer to any of the above is Yes, please provide the details. This information may be submitted in the box below as a written description or link(s) to document(s). ___________________________________________________________________ ___________________________________________________________________ or upload as a file (up to 1MB per file). Additional files may be uploaded in Question 25. 14. Does your agency use any of the following products in conjunction with waterproofing membranes? Yes No Primers applied to the concrete Venting layers Separate adhesives to bond the membrane Seepage layers Protection board Tack coat Other If the answer to any of the above is Yes, please provide any additional details about the product’s use. This information may be submitted in the box below as a written description or link(s) to document(s). ___________________________________________________________________ ___________________________________________________________________ or upload as a file (up to 1MB per file). Additional files may be uploaded in Question 25. 7. CONSTRUCTION AND INSPECTION 15. Does your agency have specifications for the surface preparation of new concrete bridge decks prior to the application of the water- proofing membrane system? ( ) Yes ( ) No 16. Does your agency have specifications for the surface preparation of existing concrete bridge decks prior to the application of the waterproofing membrane system? ( ) Yes ( ) No

37 17. Does your agency have special inspection practices during installation of waterproofing membrane systems? ( ) Yes ( ) No If any answer to Questions 15, 16, or 17 is Yes, please provide the specifications or practices. This information may be submitted in the box below as a written description or link(s) to document(s). ___________________________________________________________________ ___________________________________________________________________ or upload as a file (up to 1MB per file). Additional files may be uploaded in Question 25. 8. COSTS 18. If available, please provide the unit cost (labor, equipment, and materials) for the waterproofing membrane system only for each project during the past five years. Please list as many as possible. Project Name Unit Cost, $/sq ft New or Existing Deck 1 2 3 4 5 6 7 8 9 10 9. PERFORMANCE 19. What defects has your agency observed in the performance of waterproofing membranes on new concrete bridge decks? Yes No Lack of adhesion between the waterproofing membrane and the concrete deck Lack of adhesion between the waterproofing membrane and the asphalt surface Punctured waterproofing membranes Membrane blistering Horizontal shear failure at the membrane Cracks in the waterproofing membrane Voids under the waterproofing membrane Reinforcement corrosion Moisture penetration through the membrane but cause unknown Other

38 If Other, please describe briefly. ___________________________________________________________________ ___________________________________________________________________ 20. What defects has your agency observed in the performance of waterproofing membranes on existing concrete bridge decks? Yes No Lack of adhesion between the waterproofing membrane and the concrete deck Lack of adhesion between the waterproofing membrane and the asphalt surface Punctured waterproofing membranes Membrane blistering Horizontal shear failure at the membrane Cracks in the waterproofing membrane Voids under the waterproofing membrane Reinforcement corrosion Moisture penetration through the membrane but cause unknown Other If Other, please describe briefly. ___________________________________________________________________ ___________________________________________________________________ 10. REPAIRS 21. If your agency has requirements or specifications for repair of membrane systems, please provide details. This information may be submitted in the box below as a written description or link(s) to document(s). ___________________________________________________________________ ___________________________________________________________________ or upload as a file (up to 1MB per file). Additional files may be uploaded in Question 25. 11. RESEARCH 22. Has your agency used any non-destructive testing to assess the condition of the in-place waterproofing membranes? ( ) Yes ( ) No If Yes, what method was used? This information may be submitted in the box below as a written description or link(s) to document(s). ___________________________________________________________________ ___________________________________________________________________ or upload as a file (up to 1MB per file). Additional files may be uploaded in Question 25. Was the method reliable? ( ) Yes ( ) No

39 23. Has your agency sponsored field studies or research on the performance of waterproofing membranes? ( ) Yes ( ) No If reports are available, please supply a reference or source (person or website link) for further information, or a copy of the report. File(s) may be uploaded in Question 25. ___________________________________________________________________ ___________________________________________________________________ 12. REASON FOR NON-USE 24. If your agency has not used or has discontinued the use of waterproofing membranes since 1994, please explain why and include details of unsuccessful experiences and reasons, if applicable. ___________________________________________________________________ ___________________________________________________________________ or upload as a file (up to 1MB per file). Additional files may be uploaded in Question 25. 13. UPLOAD FILES 25. This question may be used to upload any additional relevant files not uploaded in previous questions (up to 1 MB per file). 14. PRINTOUT Here are your complete responses to date. You may print this page using ‘control p.’ If you wish to change responses before submitting the survey, you may do so by paging back. Thank You! You have now completed this questionnaire. We appreciate your assistance.

Next: APPENDIX B Summary of Responses to Survey Questionnaire »
Waterproofing Membranes for Concrete Bridge Decks Get This Book
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TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 425: Waterproofing Membranes for Concrete Bridge Decks 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.

NCHRP Synthesis 425 is an update to NCHRP Synthesis 220: Waterproofing Membranes for Concrete Bridge Decks that was published in 1995.

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