Proposed AASHTO Practice and Tests for Process Control and Product Acceptance of Asphalt-Treated Cold Recycled Pavements (2021)

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A-1   APPENDIX A Stakeholder Survey Questions Introduction and Survey Consent Do you give your consent? ( ) Yes, I consent ( ) No, I do not consent Page exit logic: Skip/Disqualify Logic IF: #1 Question “Do you give your consent?” is one of the following answers (“No, I do not consent”) THEN: Disqualify and display: “Thank you for starting the survey.” Demographics 1. Which of the following most accurately describes your organization? ( ) General Highway Contractor ( ) Pavement Recycling contractor ( ) State Agency ( ) Local Agency ( ) Industry Association ( ) Academic ( ) Materials Supplier ( ) Design Engineering ( ) Testing/Inspection ( ) Other 2. Which of the following most accurately describes your role in your organization? ( ) Senior Manager ( ) Operations Manager ( ) Plant Manager ( ) Engineer ( ) Field Operations (superintendent, foreman, operator) ( ) Quality Inspector or Tester ( ) Technical Salesperson ( ) Researcher or Academic 3. Which of the following best describes the years of experience your agency/company has with cold pavement recycling? ( ) Less than 2 years ( ) 2–5 years ( ) 5–10 years ( ) 10–20 years ( ) 20 years or more 4. Where does your organization do work or supply products in (select all that apply)? [ ] Northwest US [ ] Southwest US [ ] Northcentral US [ ] Southcentral US [ ] Northeast US [ ] Southeast US [ ] Canada [ ] Other 

A-2 Logic: Hidden by default. Hidden unless: #5 Question “4. Where does your organization do work or supply products in (select all that apply)?” is one of the following answers (“Other”) If other: Please specify ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ 5. Please indicate if you are willing to participate in a 30-minute maximum telephone interview regarding your responses to this survey? ( ) Yes ( ) No Logic: Hidden by default. Hidden unless: #6 Question “5. Please indicate if you are willing to participate in a 30-minute maximum telephone interview regarding your responses to this survey?” is one of the following answers (“Yes”) Please provide your phone number. _________________________________________________ Logic: Hidden by default. Hidden unless: #6 Question “5. Please indicate if you are willing to participate in a 30-minute maximum telephone interview regarding your responses to this survey?” is one of the following answers (“Yes”) Please enter your email address (optional) _________________________________________________ Specifications and Practices 1. Please check the cold recycling technique(s), recycling/stabilizing agent(s), and chemical additive(s) that your organization has used in the last 5 years. Foamed Asphalt Asphalt Emulsion Cement Lime Others Cement Lime Others Full-Depth Reclamation (FDR) [] [] [] [] [] [] Cold in-Place Recycling (CIR) [] [] [] [] [] [] Cold Central-Plant Recycling (CCPR) [] [] [] [] [] [] 2. What challenges have you encountered with implementing public-agency specifications for cold recycling (Please select all that apply)? [ ] Previous unsuccessful experiences [ ] Lack of quality tests with quick results [ ] Unreasonable quality tests requested [ ] Ability to meet the required quality test requirements [ ] Lack of specification uniformity across different agencies [ ] Constraints in the means and methods [ ] Excessive time required before opening to traffic/surfacing [ ] Lack of experienced local contractors [ ] Lack of agency experience [ ] Other Logic: Hidden by default. Hidden unless: #8 Question “2. What challenges have you encountered with implementing public-agency specifications for cold recycling (Please select all that apply)?” is one of the following answers (“Other”) If other: Please list or describe. ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ 

A-3   3. Can you recommend any rapid test(s) for process control or product acceptance for cold recycled pavement materials that could be used by public agencies or industry? ( ) Yes ( ) No Logic: Hidden by default. Hidden unless: #9 Question “3. Can you recommend any rapid test(s) for process control or product acceptance for cold recycled pavement materials that could be used by public agencies or industry?” is one of the following answers (“Yes”) If yes: Please describe the test(s) and/or provide reference(s) (e.g., link to test method or specification) ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ 4. Can you recommend any changes to existing and widely used rapid test(s) for process control or product acceptance for cold recycled pavement materials to make them more rapid, efficient, and/or effective? ( ) Yes ( ) No Logic: Hidden by default. Hidden unless: #10 Question “4. Can you recommend any changes to existing and widely used rapid test(s) for process control or product acceptance for cold recycled pavement materials to make them more rapid, efficient, and/or effective?” is one of the following answers (“Yes”) If yes: Please describe the test(s) and/or provide reference(s) (e.g., link to test method or specification) ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ 5. Can you recommend any time to trafficking/surfacing test(s) for cold recycled pavement materials that could be used by public agencies or industry? ( ) Yes ( ) No Logic: Hidden by default. Hidden unless: #11 Question “5. Can you recommend any time to trafficking/surfacing test(s) for cold recycled pavement materials that could be used by public agencies or industry?” is one of the following answers (“Yes”) If yes: Please describe the test(s) and/or provide reference(s) (e.g., link to test method or specification) ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ 6. Can you recommend any changes to existing and widely used time to trafficking/surfacing test(s) for cold recycled pavement materials to make them more rapid, efficient, and/or effective? ( ) Yes ( ) No Logic: Hidden by default. Hidden unless: #12 Question “6. Can you recommend any changes to existing and widely used time to trafficking/surfacing test(s) for cold recycled pavement materials to make them more rapid, efficient, and/or effective?” is one of the following answers (“Yes”) If yes: Please describe the test(s) and/or provide reference(s) (e.g., link to test method or specification) ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ 

A-4 7. Can you recommend any test(s) to estimate long-term performance for cold recycled pavement materials that could be used by public agencies or industry? ( ) Yes ( ) No Logic: Hidden by default. Hidden unless: #13 Question “7. Can you recommend any test(s) to estimate long-term performance for cold recycled pavement materials that could be used by public agencies or industry?” is one of the following answers (“Yes”) If yes: Please describe the test(s) and/or provide reference(s) (e.g., link to test method or specification) ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ 8. Can you recommend any changes to existing and widely used test(s) to estimate long-term performance for cold recycled pavement materials to make them more rapid, efficient, and/or effective? ( ) Yes ( ) No Logic: Hidden by default. Hidden unless: #14 Question “8. Can you recommend any changes to existing and widely used test(s) to estimate long-term performance for cold recycled pavement materials to make them more rapid, efficient, and/or effective?” is one of the following answers (“Yes”) If yes: Please describe the test(s) and/or provide reference(s) (e.g., link to test method or specification) ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ 

A-5   Methods 1. Please rate the importance of the listed items for test methods used for the following purposes: Process Control/Product Acceptance Time to Trafficking/Surfacing Long-Term Performance 3 2 1 3 2 1 3 2 1 Very Somewhat Not Very Somewhat Not Very Somewhat Not important important important important important important important important important Time to available test results ( ) () () () () () () () () Location of test (in-place, () () () () () () () () () laboratory) Total test time (preparation, () () () () () () () () () curing, testing, & analysis) Material condition (loose, () () () () () () () () () molded, in-place) Equipment required, () () () () () () () () () availability, portability, and cost Application of test results () () () () () () () () () (mix design, construction PC/QC/QA, structural design validation) Insensitivity to external () () () () () () () () () conditions that negatively impact accuracy of test result (e.g. ambient temperature, humidity, underlying materials) Operator/data analysis skill () () () () () () () () () level required Accuracy, Precision & Bias () () () () () () () () () of the test Applicability to different () () () () () () () () () materials (CIR, CCPR, FDR) 2. What is your maximum acceptable turnaround time for a test that determines when a cold recycled pavement may be open to traffic? ( ) 0–30 min ( ) 30–60 min ( ) 1–4 hours ( ) 4–12 hours ( ) 1 day ( ) 2 days ( ) 3 days ( ) 7 days ( ) 14 days 3. What is your maximum acceptable turnaround time for a test that determines when a cold recycled pavement may be surfaced? ( ) 0–30 min ( ) 30–60 min ( ) 1–4 hours ( ) 4–12 hours ( ) 1 day ( ) 2 days ( ) 3 days ( ) 7 days ( ) 14 days 

A-6 4. What is your preference for the location of test(s) to determine time to trafficking/surfacing of cold recycled pavement materials? ( ) Field ( ) Laboratory ( ) No preference 5. Which test(s) does your agency/industry typically use to determine resistance to deformation? (select all that apply) [ ] Modified ball penetration [ ] Modified falling hammer [ ] Dynamic cone penetrometer [ ] Other [ ] None Logic: Hidden by default. Hidden unless: #19 Question “5. Which test(s) does your agency/industry typically use to determine resistance to deformation? (select all that apply)” is one of the following answers (“Other”) If other: Please identify test method(s) or idea(s) for test method(s). ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ 6. Which test(s) does your agency/industry typically use to determine raveling resistance? (select all that apply) [ ] Raveling test using a stand mixer [ ] Other [ ] None Logic: Hidden by default. Hidden unless: #20 Question “6. Which test(s) does your agency/industry typically use to determine raveling resistance? (select all that apply)” is one of the following answers (“Other”) If other: Please identify test method(s) or idea(s) for test method(s). ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ 7. Which test(s) does your agency/industry typically use to determine density? (select all that apply) [ ] Nuclear gauge [ ] Non-nuclear gauge [ ] Water balloon [ ] Sand cone [ ] Other [ ] None Logic: Hidden by default. Hidden unless: #21 Question “7. Which test(s) does your agency/industry typically use to determine density? (select all that apply)” is one of the following answers (“Water balloon”) If other: Please identify test method(s) or idea(s) for test method(s). ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ 8. Which test(s) does your agency/industry typically use to determine stiffness? (select all that apply) [ ] Falling weight deflectometer [ ] Light weight deflectometer [ ] Seismic pavement analyzer [ ] Dynamic cone penetration [ ] Other [ ] None 

A-7   Logic: Hidden by default. Hidden unless: #22 Question “8. Which test(s) does your agency/industry typically use to determine stiffness? (select all that apply)” is one of the following answers (“Dynamic cone penetration”) If other: Please identify test method(s) or idea(s) for test method(s). ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ 9. Which test(s) does your agency/industry typically use to determine curing has initiated? (select all that apply) [ ] Deflectometer testing [ ] Stiffness gauge [ ] Dynamic cone penetration [ ] Clegg hammer [ ] Other [ ] None Logic: Hidden by default. Hidden unless: #23 Question “9. Which test(s) does your agency/industry typically use to determine curing has initiated? (select all that apply)” is one of the following answers (“Clegg hammer”) If other: Please identify test method(s) or idea(s) for test method(s). ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ 10. Which test(s) does your agency/industry typically use to determine moisture content? (select all that apply) [ ] Nuclear gauge [ ] Speedy [ ] Microwave oven [ ] Standard drying oven [ ] Ohaus moisture analyzer [ ] Other [ ] None Logic: Hidden by default. Hidden unless: #24 Question “9. Which test(s) does your agency/industry typically use to determine moisture content? (select all that apply)” is one of the following answers (“Other”) If other: Please identify test method(s) or idea(s) for test method(s). ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ Future Field Projects 1. Please identify (by agency, contractor, location, recycling process) potential cold recycling project(s) to be constructed in 2018 or 2019 that the project team could sample and test. ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ 2. Please provide contact information for key personnel the research team may contact. Name: _________________________________________________ Email: _________________________________________________ Phone number: _________________________________________________ Thank You!