National Academies Press: OpenBook

Fiber Additives in Asphalt Mixtures (2015)

Chapter: APPENDIX A Survey Questionnaire

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Page 44
Suggested Citation:"APPENDIX A Survey Questionnaire." National Academies of Sciences, Engineering, and Medicine. 2015. Fiber Additives in Asphalt Mixtures. Washington, DC: The National Academies Press. doi: 10.17226/22191.
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Page 44
Page 45
Suggested Citation:"APPENDIX A Survey Questionnaire." National Academies of Sciences, Engineering, and Medicine. 2015. Fiber Additives in Asphalt Mixtures. Washington, DC: The National Academies Press. doi: 10.17226/22191.
×
Page 45
Page 46
Suggested Citation:"APPENDIX A Survey Questionnaire." National Academies of Sciences, Engineering, and Medicine. 2015. Fiber Additives in Asphalt Mixtures. Washington, DC: The National Academies Press. doi: 10.17226/22191.
×
Page 46
Page 47
Suggested Citation:"APPENDIX A Survey Questionnaire." National Academies of Sciences, Engineering, and Medicine. 2015. Fiber Additives in Asphalt Mixtures. Washington, DC: The National Academies Press. doi: 10.17226/22191.
×
Page 47

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42 APPENDIX A Survey Questionnaire APPENDIX A Survey Questionnaire Default Question Block Your cooperation in gathering information on the use of fiber additives in asphalt mixtures will be greatly appreciated. To ensure we have complete information, a few questions require an answer; other answers are requested, but not required. Please complete this questionnaire by March 21, 2014. If you prefer, you may respond to these questions by phone. To do so, please contact Becky McDaniel, the consultant for this project, either by email at rsmcdani@purdue.edu or by phone at 765-463-2317, ext 226, to arrange a date and time. [Notes in brackets show survey logic embedded in the online questionnaire.] First, please provide your contact information, so that we know who is responding to this survey. What is your name? What is your position/title? What organization/agency do you work for? (Required field) May we contact you for more information? o Yes; please provide your phone number and email address. o Please contact this person instead (please provide name, phone number and/or email address). o No.

43 Does your organization currently specify or allow the use of fiber additives in asphalt mixtures? (Required field) o Yes, currently use/allow, o No. o Not sure. [If no is selected, skip next two questions.] In which application(s) do you specify/allow the use of fibers in asphalt mixtures? Approximately how many tons of asphalt mix containing fibers are used each year? Did your organization use fibers in the past and discontinue use in some or all applications? o Yes. o No. o Not sure. [If No is selected, then skip to “Do you have any additional information?”] Why are fibers no longer used in those applications? What types of fibers does/did your organization specify or allow for various applications? (Click all that apply.) Specify/Require Allow Polymer (polyester. polypropylene, other) Cellulose Mineral Unspecified Other

44 Why does/did your organization use fibers? (Click all that apply.) o To prevent binder draindown. o To improve cracking resistance. o To improve rutting resistance. o Other Does your organization have any specifications, test methods, mix design methods or acceptance criteria for fibers or fiber-modified mixtures? o Yes. o No. [If No is selected, then skip next two questions.] Please provide a link of email copies to rsmcdani@purdue.edu Which properties do you measure/control? Are you aware of/does your organization practice or enforce any safety/health/environmental restrictions when fibers are used in asphalt mixtures? o Yes; if so, please specify. o No. o Rely on manufacturers’ recommendations (MSDS or SDS). Does your organization have any current or completed research or performance histories on fiber- modified asphalt mixtures? o Yes. o No. [If No is selected, then skip next question.] If yes, please provide reference or contact person.

45 Does your organization have information on costs (initial or life cycle) of fibers or benefit:cost ratios for fiber-modified mixtures? o Yes. o No. [If No is selected, then skip next question.] Is there someone we could contact for more information? (Please provide name and contact information.) Do you have any additional information, current or historical, that you would like to share? If yes, please outline the information below or provide links or contact information for more detail. This completes the survey. Thank you for your time and information.

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TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 475: Fiber Additives in Asphalt Mixtures summarizes the types of fibers used in asphalt mixtures, their properties, how they are tested, how they are applied, and lab and field performance of the fiber mixes.

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